Glass NGP Section 20

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Glass NGP Section 20

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  • The discovery of glassware in ancient

    Mesopotamia has been dated to approximately

    7000 years old. The use of glass as a building

    material dates back to ancient Rome, about 30BC

    to 345AD. The early methods of manufacture

    was through blowing the glass into shape.

    This technique produced low quality small sized

    sheets mainly for use in win dows. This method

    was used well into the seven teenth century.

    20122

    float glass manufacture

    The twentieth century saw improvements in the method of glass manufacture through better optical quality and larger panels. Nevertheless, these improvements still produced glass with slightly uneven or distorted surfaces. In order to improve the optical qualities, both surfaces were sometimes required to be ground and polished to achieve greater flatness and no distortion.

    In 1952, Pilkington Glass invented the Float Process which revolutionised glass manufacture. The process ensured high optical quality, flatness and no distortion (see Diagram 20.1). The float process begins with the mixing of raw materials through the batch house (1). The raw materials are then fed into a melting furnace (2) where they are heated to around 1700C. The molten glass mixture then flows into a bath filled with molten or liquid tin (3). The molten glass floats on top of the tin in the float bath. The temperature now decreases to around 1100C and the hardening glass floats out of the tin bath into the annealing chamber (4) until the temperature falls to around 700C. From the annealing chamber the glass is then cut (5) into the required sheet sizes.

    Due to the flat surface of the liquid tin, the float process creates exceptionally flat glass sheets, absolutely free from distortion. The float line process is a 24 hour a day non-stop operation. A float line can be operated continuously for periods of around 10 years without repair or refit.

    performance data and technical support

  • 123

    Furnace

    float glass manufacturing line

    Molten tin float bath Annealing chamber CuttingBatch house

    2 3 4 51

    glass performance data

    table 20a: major components of glass

    Clear Soda Lime glass %

    Silica SiO2 7074

    Soda Na2O 1215

    Lime CaO 810

    Magnesium Oxide MgO 3.54.5

    Potassium Oxide K2O 0.30.8

    Alumina AI2O3 0.02.0

    Iron Oxide FeO3 0.080.11

    table 20b: general properties of glass

    Refractive Index 1.501.58

    Surface Reflectance 4% each side (total of 8%)

    Softening Point 720730C

    Specific Heat 0100C 0.20

    Compressive strength (25mm cube) 248MPa

    Tensile Strength Annealed 19.328.4 MPa

    Tensile Strength Toughened 175 MPa

    Co-efficient of Linear Expansion 9.0 x 106/C (Room temperature to 350C)

    Hardness Mohs Scale 6.0

    Density 2500 kg/m3

    Youngs Modulus (Elasticity) 69 GPa

    Possions Ratio 0.23

    table 20c: glass weights

    mm kg/m2

    2 5

    3 7.5

    4 10

    5 12.5

    6 15

    8 20

    10 25

    12 30

    15 37.5

    19 47.5

    25 62.5

    table 20d: conversions and cal culations

    Inches to Millimetres 1 inch = 25.4mm

    Fahrenheit to Celsius C = f 32 x 5 9

    Square feet to Square metres 10.764 square foot = 1m2

    = 3.142857

    Radius of a circle (r) Centre to outer edge

    Diameter of a circle (D) D = 2 x r

    Circumference of a circle (C) C = D

    Area of a circle r2

    Area of a square/rectangle Height x Width

    Perimeter or lineal measurement Height + Width x 2 of a square/rectangle (Lineal metre)

    diagram 20.1: float glass manufacture

  • 124

    diagram 20.2: glass shapes breakage patterns

    annealed float glass

    Annealed float glass does not resist high stresses from the impact of an object. When broken, it shatters into large sharp pieces.

    laminated safety glass

    Laminated safety glass has the about the same impact strength resistance as that of annealed float glass (e.g. 6mm = 6.38mm). If broken, glass remains intact on its PVB interlayer and shards do not fly out. Because of its high resistance to penetration, laminated glass is very safe and can be used in a wide variety of applications.

    heat strengthened glass

    Heat strengthened glass is about twice as strong as annealed float glass and is used generally as a protection against thermal breakage. It is not a Grade A Safety Glass.

    toughened safety glass

    Toughened safety glass is up to five times stronger than annealed float glass and offers the highest resistance to impact. It is ideal for applications in doors, shower screens etc. If broken, the whole panel of glass shatters into small pieces of blunt granules which are relatively safe. Additionally, the shattered glass falls out quite easily.

    triangle

    3 sides

    quadrilateral

    4 sides

    pentagon

    5 sides

    hexagon

    6 sides

    septagon

    7 sides

    octagon

    8 sides

    nonagon

    9 sides

    decagon

    10 sides

  • 125

    outside

    single monolithic

    21

    4

    outside

    3

    1

    laminated

    PVB Interlayer

    Airspace

    Low-E Coating #2 or #3

    4

    outside

    double glazing IGU

    32

    1

    Inboard Lite

    Airspace

    outside

    inside

    inside

    inside

    inside

    double glazing IGUwith laminated glass*

    or 32

    1

    PVB Interlayer

    Inboard Lite

    4

    Outboard Lite

    Outboard Lite

    2

    diagram 20.3: glazing types and surface positions

    thermal breakage

    Thermal breakage occurs where annealed glass breaks due to excessive temperature differences between the centre and the edges of the glass. In this situation while the centre of the glass starts to warm and expand, the edges remain cool thus restricting the expansion, resulting in breakage.

    Wired, tinted, reflective, low-E coated glass and IGUs are most susceptible to thermal breakage. Toughening or heat strengthening will prevent thermal breakage. It is recom mended that a thermal assessment be carried out to determine the level of stress and/or the possibility of breakage.

    Consult our technical staff for more information.

    factors influencing thermal breakage

    climate

    Consideration should be given to minimum and maximum daytime temperature differences. Breakages can occur, for example with morning temperature rises where the glass can heat up quickly while the edges remain cool.

    edge quality

    Annealed glass edges should be clean cut with minimal defects. Thermally suspect laminated glass should have edges flat ground.

    panel size and thickness

    The chances of thermal breakage increase as the area of glass and thickness increases because of potential cutting, glazing and handling problems. Any damage introduced to the edge at these stages can impact adversely on the thermal safety of the panel.

    edge cover

    The chance of breakage increases with edge cover over 40mm.

    glazing material

    Dark coloured materials will promote fewer edge temperature differences than light coloured frames. Concrete and wood have a higher thermal breakage factor than metal or plastic frames.

    external shading devices

    External shading devices, building overhangs and mullion or column depth which may cast unfavourable shadows will increase the possibility of breakage.

    internal shading and back-up material

    Confined spaces can create excessive heat build up. Light coloured blinds or venetians which reflect heat have a higher thermal breakage factor than dark coloured ones. If there is a gap of 50mm or more around the perimeter of the internal shading device, the glass is considered ventilated and a lower breakage factor is applied. In confined spaces such as spandrel glass applications, the glass may be exposed to temperatures as high as 70C.

    * Laminated glass can also be glazed as the outboard lite.

  • 126

    cooling and heating sources

    Direct air streams from these sources onto the glass surface can create excessive temperature differences with resultant breakages.

    IGUs or double glass units

    Multiple panel glazing creates higher thermal stress on the outside pane. Thus in certain situations, this pane may have to be heat strengthened or toughened.

    film application

    Application of film products, paper, posters or paint will increase the possibility of thermal breakage.

    thermal breakage risk

    Glass type Solar absorption Risk factor

    Clear 18% Low

    Coloured/Tinted 3040% Medium

    High light transmitting 4555% Medium to high coating on coloured or tinted

    Reflective coating on clear 6070% High

    Reflective coating on 8085% Very high coloured or tinted

    thermal strength

    Glass type Strength

    Toughened glass Strong n

    Heat strengthened glass n

    Thin annealed float glass n

    Laminated annealed float glass n

    Thick annealed float glass n

    Thick annealed laminated glass n

    Patterned annealed glass n

    Wired glass Weak n

    current standards list

    Listed to the right are some of the common standards, codes and regulations used in our industry. Please note that this list is a guide only and the year that the standard was released has been omitted. For the latest releases please consult the Building Code of Australia, your local regulatory authority and Standards Australia.

    table 20e: standards list

    0 Building Code of Australia;

    0 Relevant local and state statutory and regulatory requirements;

    0 AS1288 Glass in Buildings Selection and Installation;

    0 AS/NZS2208 Safety glazing materials in buildings;

    0 AS/NZS2080 Safety glass for land vehicles;

    0 AS/NZS4666 Insulating glass units;

    0 AS/NZS4667 Quality requirements for cut to size and processed glass;

    0 AS/NZS4668 Glossary of terms used in the glass and glazing industry;

    0 HB125 The glass and glazing handbook;

    0 AS1170 Structural design actions;

    0 AS2047 Windows in Buildings;

    0 AS4055 Wind loads for housing;

    0 AS1428 Design for access and mobility;

    0 AS3959 Construction of buildings in bushfire prone areas;

    0 AS3740 Waterproofing of wet areas within residential buildings;

    0 AS1926 Swimming pool safety;

    0 AS2820 Gate units for private swimming pools;

    0 AS/NZS4284 Testing of building facades;

    0 AS/NZS2343 Bullet resistant panels and elements;

    0 AS3555 Building elements Testing and rating for intruder resistance;

    0 AS1735 Lifts, escalators and moving walks;

    0 AS1530 Methods for fire tests on buildings materials, components and structures;

    0 AS/NZS1905 Components for the protection of openings in fire resistant walls;

    0 AS2366 Repair of laminated glass windscreens fitted to road vehicles;

    0 AS1799 Small pleasure boat code;

    0 AS5601 Gas installations;

    0 AG601 Gas installations;

    0 AS4551 Domestic gas cooking appliances;

    0 AG101 Domestic gas cooking appliances;

    0 AS/NZS4586 Slip resistance classification of new pedestrian surface materials;

    0 HB197 An introductory guide to the slip resistance of pedestrian surface materials

    0 AS1418 Cranes;

    0 AS2380 Electrical equipment for explosive atmospheres explosion protection techniques;

    0 AS4114 Spray painting booths.

  • 127

    glass surface damage1

    For hundreds of years, the lustrous, hard and inert characteristics of glass, coupled with its transparency, have made it one of the worlds most desirable and used building materials. Glass has been used in the construction industry for many years on thousands of projects involving billions of square metres of glass.

    No glass by itself, exudes, leaches or bleeds any residue or stain causing materials.

    water damage

    Location of water sprinklers in relation to glass surfaces should be considered early in design. Direct or wind blown hard water spray from water sprinklers can produce tenaciously bonded inorganic residues on glass surfaces. If spraying is repeated and/or wet, dry spray cycles are permitted to remain in contact with glass surfaces, for even short periods of time, costly cleaning procedures may be required. Extended periods of cyclic water spray without frequent cleaning of glass may allow residue build up to develop which cannot be removed. Glass replacement may be the only practical remedy.

    runoff and glass damage

    When water reaches a building, it is either reflected, absorbed into the building materials, or allowed to run down the faade. When this water is permitted to run down over masonry, sealants etc., and onto the glass, the water can carry with it con taminants that may react with and adhere with the glass surface. These contaminates could lead to a residue or staining that cannot be removed, which will permanently damage the glass surface.

    Glass may be damaged, etched or stained by a number of materials typically used at a job site. Surface damage may be caused by weld splatter and wind blown debris. Alkaline materials such as concrete wash off and certain cleaning agents may chemically attack the glass surfaces. Rust (iron oxide) will not usually deteriorate the glass surface, but may be very difficult to remove. Silicone concrete sealing materials can discolour glass surfaces. It is good practice to protect glass surfaces whenever practical during construction of the building. Special attention should be paid to reflective glass. These are not any more susceptible to damage than uncoated glass. However, scratches and other damage on the coating are more noticeable. 2

    sealants

    Organic sealants used in todays glazing systems may exude, bleed or leach solvents, oils and/or plasticisers etc., under normal weathering conditions. Depending on the type of sealant used and the weathering conditions encountered, residue from sealants can vary dramatically in content, degree and the time period over which the residue continues to exude from the sealant. Generally, the degree of residue from sealants will diminish asymptotically over time. In the great majority of projects, frequent cleaning of glass will remove deposits or residue using normal wash and rinse glass cleaning methods.

    When residue from sealants is allowed to remain in contact with glass surfaces over a long period of time without frequent washing of the glass, the residue may become tenaciously bonded to the surface of the glass due to normal weathering. If the residue is permitted to have a long residence time, very costly cleaning techniques may be required to remove the residue from glass surfaces.

    Due to exuding, leaching or bleeding, sealants need not necessarily be in direct contact with glass to produce a residue on glass. If sealants are used in areas surrounding the glass i.e. in metal expansion joints, parapet sealing, metal or masonry weatherseals etc., residue from these sealants may still run down and deposit on the glass surfaces either by gravity or through the action of rain.

    metals

    Weathering steels, for example, release oxides while aging. These oxide deposits should be removed from glass by regular cleaning methods initiated during construction. If the metal oxides are permitted to wash over glass and are permitted to accumulate, they can leave a deposit that is tenaciously adhered, requiring costly cleaning techniques to remove the residue from the glass surface.

    masonry

    Staining (and in some cases, etching) of glass can result from substances released from concrete facades and concrete window frames. Rainfall can permeate concrete and then leach alkaline materials from it and deposit them on the glass. In some instances this may cause surface staining and etching.

    Concrete frames at window heads should be designed so that any runoff is directed away from the glass. Edge drips and a second drip, as another line of defence, should be provided. Precast panels and all other concrete for outdoor walls should be processed for thorough mixing, full hydration and complete curing. Concrete surface treatments (with acid, sandblasting, grouting, waterproofing etc.) must be completed before glazing begins. Any loose particles resulting from these operations should be removed by normal wash, rinse and dry cleaning.

    It is essential that these surface treatments be completed prior to glazing. Glass should be examined weekly during construction when it is installed adjacent to or below concrete or other masonry surfaces which are exposed to weather. When inspections reveals dirt, scum, alkali deposits or staining, glass should be immediately washed.

    1 Extract from: C.O. Peterson, Jr, Director, Technical Services and Product Development PPG November 30, 1981 Residue on Glass bulletin.

    2 Extract from: Metal Curtain Wall, Window, Store Front and Entrance Guide Specifications Manual 1976 by Architectural Aluminium Manufacturers Association.

  • 128

    design recommendations

    Early in the design stage, architects should consider glazing details designed to avoid water run-off onto glass surfaces. The use of reveals, splays, flashing, drips etc. from sealants, masonry or metals can minimize run-off and avoid the deposition of residue onto the glass.

    restoring surface damage

    Depending on the level of glass surface damage, there are a few restoring agents available. Prod ucts such as Calc-Off and Renotec can remove mineral deposits, hard stains, rainbow stains etc. These products renovate and protect the glass in a single application (Diagram 20.4 illustrates how restoring agents work).

    0 A glass surface is not flat. Pollution will collect in the open pores and is normally very difficult to remove (1);

    0 During the restoration with Calc-Off, the struc ture of the glass surface will be altered. The tops of the glass will be flattened out and pores are cleaned and filled with a protective coating up. This is possi ble through Calc-Offs special chemical struc ture. During this process all existing pollution will be removed from the surface of the glass (2);

    0 The result is a flat glass surface, free from pol lution. The surface now has very low friction. This makes it very difficult for pollution to stick to the surface. In addition, a silicone based protecting layer has been added to the surface, making fu ture cleaning easier, cheaper and faster. Clean ing will also be required less frequently. Storage problems like fungus, stains, rainbow-stains will be avoided after application (3).

    For instructions on protection and cleaning of low-E coated surfaces (Reflective, Sungate 500, Sunergy) and mirror, refer to the relevant section in this catalogue.

    diagram 20.4: glass restoring agents

    protection

    films

    Since National Glass has been manufacturing toughened glass, this product has been supplied with a clear semi-bonding film applied to both sides. This was done to protect toughened glass, as a value added product, during handling and transportation. Over time, customers have seized an opportunity to leave this film in situ as a site protection measure, often for long periods.

    National Glass supplies plastic film coated glass on the following basis:

    0 It should be removed within the manufacturers recommended time frame. This time frame is generally within one month of glazing and exposure to sunlight;

    0 If used onsite, no responsibility is taken for (1) the effects of damage to glass surface as a result of partial or full removal of the film by wind and/or rain and (2) staining that may occur as a result and (3) other contaminants that may leach between the glass and film.

    screens

    Temporary screens may be required if other trades (i.e. welding, sand blasting, floor sanding and cut ting) are in progress near to the glass to protect it from damaging off spray and particles.

    Pollution

    Tops flattened out

    Pores cleaned out and filled with agent

    Protective coating

    Flattened out glass surface

    1

    2

    3

  • 129

    storage

    When storing glass, it should be leaned against a structural frame with full vertical and horizontal support. The angle of lean should be approxi mately 7 from the vertical. Paper should be placed between the sheets to prevent rubbing or scratching during storage or trans port. If the glass is wet, the panels should be removed and dried and paper interleaved with butcher paper.

    cleaning*

    When cleaning glass use only soft, clean cloths, free from grit with a mild soap, detergent or recommended glass cleaner solution. This is to avoid any scratching or marking of the surface. Excess cleaning solution should be removed with squeegee and clean water immediately. Never use abrasive cleaners on glass, otherwise the result is scratching. When using tapes or adhesives, make sure they can be easily removed with a clean gem blade or scraper and will not stain the glass. When paint spots appear on the glass, they can be removed with a gem blade or scraper in con junction with glass cleaner.

    Extra care should be taken with coated or reflective glass. Abrasive cleaners or metal cleaning implements will scratch coated surfaces. Fingerprints and dirt will be more noticeable on reflective glass and requires more frequent cleaning. On construction sites extra care will be required because of the contaminants in the air and/or concrete run off. If any staining is noticed, the glass should be cleaned immediately and protected against further staining. Certain stains may not be readily removed with standard cleaners and may require specialist treatment.

    * See also page 24.

    glass performance data

    calculating the glass performance data window 6.3

    Window 6.3 is an MS-Window based software-modelling program used to determine the optical and thermal performance properties of glass and windows. The program was developed by LBNL (Lawrence Berkeley National Laboratory USA). This program contains the International Glass Database (IGDB), which is an extensive collection of glazing products from around the world. This version of Window supersedes the earlier versions, Window 4.1 and Window 5.2.

    It is available to download from the internet at: http://windows.lbl.gov/software/window/window.html .

    NFRC 100-2001

    A National Fenestration Rating Council (NFRCUSA) document specifying the environmental conditions, (i.e. wind speeds, internal and external temperatures, solar radiation levels and heat transfer coefficients); and procedure used to determine the performance characteristics of a glazing. The Australian glass and glazing industry has adopted the NFRC 100-2010 methodology.

    The NFRC is a non-profit organisation that administers the only uniform, independent rating and labelling system for the energy performance of windows, doors, skylights, and attachment products in the United States. One of their main functions is to establish uniform procedures for determining the various energy performance ratings of glazing materials.

    Different environmental conditions, eg. European, alter the parameters used in the calculation of glass performance data, resulting in different values. Care should be taken when comparing performance figures to ensure they are calculated using the same environmental conditions.

  • 130

    definitions of performance values

    solar control

    The energy emitted from our Sun is referred to as solar energy or solar radiation. Solar control makes reference to the ability of glass to control or reduce the suns direct heat energy on a window. Solar control also refers to the ability of a glass to reduce visible light and UV transmittance.

    Look for the following performance values to measure solar control:

    0 Solar heat gain co-efficient (SHGC);

    0 Visible light transmittance;

    0 UV transmission.

    thermal control

    The Suns direct transmission on the glass is not the only way in which heat is transferred. Heat is also transferred by method of re-radiation, conduction and convection. Thermal control refers to the ability of a glazing to resist heat transfer through these three methods. (Similar to the functional performance of batt or insulation foil for walls and ceilings).

    Adding an additional pane of glass (IGU) and modifying the surface of the glass with a low-E coating will improve the insulation properties of the glass when compared to ordinary non coated glass. These thermal or insulation improvements work day and night in both summer and winter conditions, reducing heat entry and heat loss. Only low-E coated glass and IGUs can provide improved thermal control.

    See also U-value.

    visible light transmittance VLT

    This term is used to describe the percentage level of interior daylight that a particular glass lets through. The higher the number the brighter the interior will be.

    visible light external reflectance VLR

    This refers to the percentage level of visible light that is reflected externally by a glass as detected by the human eye. This is a useful measure for glass where:

    0 restrictions exist on the level of reflection allowed;

    0 the higher the percentage number the greater the mirror like appearance.

    visible light internal reflectance VLRi

    This refers to the percentage level of visible light that is reflected internally by a glass as detected by the human eye. This is a useful measure when determining the level of internal reflectance at night time. All glass products (apart from specialty anti-reflecting products such as Amiran or Luxar) have internal reflectances which make it difficult to see clearly out of a window at night time (with lights on inside) conditions. Internal reflectances increase with the use of reflective coated glass products.

    solar heat gain co-efficient SHGC

    Refers to the total amount of solar energy transmittance entering a building through the glazing as heat gain. This measure equates to the Suns direct transmittance energy (T) plus the part of this energy absorbed by the glass and re-radiated inside (E) (see Diagram 15.2, page 103). The lower the number the less heat gain. Its most commonly used in regards to the cooling of the building. SHGC can also be calculated as 86% of the Shading Co-efficient. 3mm clear float for example, has a SHGC of 0.86.

    The SHGC can also be stated in the fol lowing ways:

    0 3mm clear lets in 86% of the suns total direct heat;

    0 3mm clear keeps out only 14% of the suns total direct heat.

    Another way to describe how the SHGC is used is in terms of energy consumption in watts/m2.

    For example the suns direct energy typically radiates on a hot day 785 watts per m2 and 6mm Sunergy Green has a SHGC of 0.42. If you multiply 785 watts x 0.42 (SHGC) you get 329 watts per m2 radiated into the building. In this example the Sunergy glass is reducing the suns direct energy through the glass into the building by 58%.

    SHGC has a trade-off relationship with visible light trans-mittance. In general, the lower the SHGC, the lower the levels of visible light which will be transmitted. This can in some instances affect the amount of artificial lighting needed and the interior brightness of a room. SHGC is sometimes also referred to as the solar factor (SF).

    shading co-efficient

    This term indicates the total amount of solar energy that passes through a glass as compared to 3mm clear float (3mm clear float has a base factor of 1.00). The lower the shading co-efficient value, the lower the level of heat entry into a room or interior.

  • 131

    UV transmission

    This refers to the percentage of the suns harmful ultra violet light (UV) that is transmit ted through glass. Ultra violet light aids in fading and damaging furniture, carpets etc and can be harmful to people. It is most com monly measured in the 300400nm wave length range.

    U-value

    U-value measures the rate of heat flow through the glazing by conduction, convection and re-radia tion. It does not measure heat transfer by the Suns direct transmittance as measured by the SHGC. It is a rating system used almost exclusively by the window/glass industry worldwide. Other industries use the R value for measuring insulation. U-value is measured in watts per square metre per degree Celsius (Wm2K) difference. The amount of heat energy transferred as measured by the U-value can be calculated by taking for example 4mm clear float with a U-value of 5.9w/m2C and multiplying the difference between outdoor and indoor temperature (32C outside and 24C inside = 8C) > 5.9 x 8C = 47watts per m2 heat transferred between the outside and inside. The lower the U-value the better the thermal insula tion properties of the glazing system.

    The U-value is the reciprocal of the R value and either can be calculated from the other e.g. U = 1/R or R = 1/U.

    U and R values are variable and dependent upon climatic conditions. That means that the transmit tance of heat through a glazing system changes. Therefore glass transmits heat at varying rates depending upon the prevailing climatic condition. When comparing glazing systems based upon U-value, it is important that the climatic conditions used to model all the systems are the same. The standard climate conditions used to calculate U-values in this catalogue are based upon NFRC 100 2001 methodology.

    relative heat gain RHG W/m2

    Relative heat gain combines the shading co-efficient with U-value to measure the total heat gain for summer time conditions. This is particularly useful for building designers to determine air-conditioning loads.

    The formula is:

    SC (Shading co-efficient) x W/m2 (Direct solar intensity)

    plus

    U-value W/m2 (Summer U-value) x 8C (Difference between outdoor and indoor temperature)

    The conditions formulated to determine the RHG are by ASHRAE (American Society for Heating, Refrigeration and Air-conditioning Engineers).

    See also page 104.

    spectral selectivity

    Spectrally selective glazing is generic terminology for window glass that per mits some portions of the solar spectrum to enter a building while blocking others. This high performance glazing admits as much daylight as possible while preventing transmission of as much solar heat as possible. By controlling solar heat gains in summer, preventing heat loss of interior heat in winter, and allowing occupants to reduce electric lighting use by making maximum use of daylight, spectrally selective glazing significantly reduces building energy con sumption and peak demand.

    LSG ratio

    Refers to the light-to-solar heat gain ratio and is calculated by the visible light transmission (VLT) divided by SHGC. (The LSG ratio is sometimes also referred to as the Luminous Efficacy or Cool ness Factor) which is calculated by the VLT divided by the shading co-efficient not the SHGC).

    The LSG ratio assists commercial and to a de gree residential building designers to calculate building energy efficiency. However, LSG ratios on their own can be misleading. The primary driver for building energy efficiency is a fast pay back of costs associated with implementation of energy efficient measures and on-going lower energy costs. Low energy costs are achieved through windows that have low SHGC (to control suns direct solar heat), high visible light transmittance (VLT) and high levels of thermal insula tion for both summer heat gain and winter heat loss (as measured by low U-value numbers). These three performance values, SHGC, VLT and U-value have the biggest impact on energy efficient glazing. The LSG ratio should also be used in conjunction with occupant comfort factors such as glare, UV and noise control. LSG ratios are used to determine whether a glazing is spectrally selective.

  • 132

    glass performance values

    VLT VLR VLRi Visible light Visible light Visible light Shading transmission reflectance reflectance co-efficient SHGC U-value

    Colour and type % External % Internal % W/m2K

    single glazed monolithic

    clear float3mm 90 8 8 0.99 0.86 5.94mm 89 8 8 0.97 0.84 5.95mm 88 8 8 0.95 0.82 5.86mm 88 7 7 0.93 0.81 5.88mm 87 7 7 0.89 0.77 5.710mm 86 7 7 0.86 0.75 5.712mm 84 7 7 0.83 0.72 5.615mm 83 6 6 0.82 0.71 5.519mm 81 6 6 0.77 0.67 5.4

    low-iron ultra clear4mm Starphire 91 8 8 1.04 0.91 5.96mm Starphire 91 8 8 1.03 0.90 5.810mm Starphire 91 8 8 1.02 0.89 5.712mm Starphire 90 8 8 1.01 0.88 5.66mm SuperClear 91 8 8 1.03 0.90 5.8

    tinted float glass6mm Azuria 68 7 7 0.59 0.52 5.84mm Bronze (VFloat) 61 7 6 0.81 0.70 5.95mm Bronze (VFloat) 54 6 6 0.74 0.65 5.86mm Bronze (VFloat) 49 6 5 0.71 0.62 5.810mm Bronze (VFloat) 34 5 5 0.63 0.54 5.76mm Caribia 68 7 7 0.60 0.52 5.85mm Dark Grey 22 4 4 0.65 0.57 5.86mm Dark Grey 15 4 4 0.61 0.53 5.86mm Graylite 14 5 5 0.55 0.48 5.84mm Green Panasap 77 7 7 0.73 0.63 5.95mm Green Panasap 74 7 7 0.69 0.60 5.86mm Green Panasap 70 6 6 0.65 0.56 5.88mm Green Panasap 63 6 6 0.58 0.51 5.710mm Green Panasap 59 6 6 0.55 0.48 5.712mm Green Panasap 54 6 6 0.52 0.45 5.64mm Green (VFloat) 82 8 8 0.79 0.69 5.95mm Green (VFloat) 79 7 7 0.74 0.64 5.86mm Green (VFLoat) 77 7 7 0.71 0.62 5.810mm Green (VFloat) 63 6 6 0.57 0.49 5.74mm Grey (Euro) 56 6 6 0.79 0.69 5.95mm Grey (Euro) 50 5 5 0.74 0.65 5.86mm Grey (Euro) 44 5 5 0.70 0.61 5.88mm Grey (Euro) 34 5 5 0.63 0.55 5.710mm Grey (Euro) 26 4 4 0.57 0.50 5.712mm Grey (Euro) 20 4 4 0.53 0.46 5.66mm SuperBlue 53 6 6 0.60 0.52 5.810mm SuperBlue 41 5 5 0.52 0.45 5.74mm SuperGreen 73 8 8 0.67 0.58 5.95mm SuperGreen 70 7 6 0.64 0.56 5.86mm SuperGreen 67 6 6 0.61 0.53 5.86mm SuperGrey 9 4 4 0.41 0.36 5.8

    EV EVantagegrn greengry greyN Sunergy Neutral Sunergysg supergreen

    az azuriabrz bronzeclr clearc_blu cool blueet energytech

  • 133

    VLT VLR VLRi Visible light Visible light Visible light Shading transmission reflectance reflectance co-efficient SHGC U-value

    Colour and type % External % Internal % W/m2K

    reflective pyrolytic6mm Solarcool Azuria (2) 26 19 36 0.44 0.38 5.86mm Solarcool Grey (2) 17 11 36 0.51 0.44 5.8

    reflective vacuum coated: solarplus6mm SS08 on Azuria float (2) 6 28 38 0.27 0.23 4.56mm SS08 on bronze float (2) 5 18 38 0.27 0.22 4.56mm SS08 on clear (2) 8 42 37 0.24 0.20 4.56mm SS08 on Dark Blue Panasap (2) 5 21 38 0.27 0.23 4.56mm SS08 on Evergreen float (2) 6 28 37 0.27 0.23 4.56mm SS08 on green float (2) 7 34 38 0.27 0.22 4.56mm SS08 on grey float (2) 4 13 37 0.27 0.23 4.56.38mm SS08 grey PVB laminated (3) 5 11 47 0.34 0.29 5.76mm SS22 on Azuria float (2) 16 15 33 0.35 0.29 5.06mm SS22 on bronze float (2) 12 11 34 0.37 0.31 5.06mm SS22 on clear float (2) 20 24 34 0.38 0.32 5.06.38mm SS22 clear PVB laminated (2) 25 26 21 0.42 0.36 5.86mm SS22 on Dark Blue Panasap (2) 13 13 34 0.35 0.30 5.06mm SS22 on Evergreen float (2) 15 15 34 0.35 0.30 5.06mm SS22 on green float (2) 17 20 33 0.36 0.30 5.06mm SS22 on grey float (2) 9 9 34 0.35 0.30 5.06mm TS21 on Azuria float (2) 16 15 34 0.33 0.28 4.96.38mm TS21 cool blue PVB laminated (3) 22 18 20 0.41 0.35 5.86mm TS21 on bronze float (2) 12 11 34 0.34 0.29 4.96.38mm TS21 bronze PVB laminated (3) 15 11 20 0.40 0.34 5.86mm TS21 on clear float (2) 20 22 34 0.36 0.30 4.96.38mm TS21 clear PVB laminated (2) 24 23 22 0.39 0.33 5.86mm TS21 on Dark Blue Panasap (2) 13 13 34 0.34 0.29 4.96mm TS21 on Evergreen float (2) 16 15 34 0.34 0.29 4.96mm TS21 on green float (2) 18 18 34 0.35 0.29 4.96.38mm TS21 green PVB laminated (3) 21 17 21 0.40 0.34 5.86mm TS21 on grey float (2) 10 9 34 0.34 0.29 4.96.38mm TS21 grey PVB laminated (3) 13 9 19 0.40 0.34 5.86mm TS30 on Azuria float (2) 23 12 30 0.38 0.32 5.36.38mm TS30 cool blue PVB laminated (3) 28 15 18 0.46 0.39 5.86mm TS30 on bronze float (2) 17 8 30 0.41 0.35 5.36.38mm TS30 bronze PVB laminated (3) 19 10 17 0.44 0.38 5.86mm TS30 on clear float (2) 29 17 30 0.44 0.38 5.36.38mm TS30 clear PVB laminated (2) 33 19 18 0.47 0.41 5.86mm TS30 on Dark Blue Panasap (2) 19 10 30 0.40 0.34 5.36mm TS30 on Evergreen float (2) 23 12 30 0.39 0.33 5.36mm TS30 on green float (2) 25 14 30 0.41 0.35 5.36.38mm TS30 green PVB laminated (3) 28 14 17 0.46 0.40 5.86mm TS30 on grey float (2) 14 8 30 0.39 0.33 5.36.38mm TS30 grey PVB laminated (3) 17 8 18 0.44 0.37 5.8

  • 134

    VLT VLR VLRi Visible light Visible light Visible light Shading transmission reflectance reflectance co-efficient SHGC U-value

    Colour and type % External % Internal % W/m2K

    low-E coated

    comfortplus6.38mm Neutral 59 (2) 59 7 9 0.60 0.52 3.66.38mm Clear 82 (2) 82 10 11 0.79 0.68 3.66.38mm Grey 40 (2) 39 6 9 0.58 0.50 3.66.38mm Green 71 (2) 71 9 11 0.59 0.50 3.6

    energytech4mm et (2) 83 11 11 0.83 0.72 3.76mm et (2) 81 11 12 0.80 0.70 3.610mm et (2) 79 11 12 0.76 0.66 3.6

    evantage6mm Clear EV (2) 68 23 26 0.73 0.63 3.86mm Grey Ev (2) 32 10 27 0.48 0.42 3.86mm SuperGreen EV (2) 49 16 27 0.43 0.38 3.86mm Blue/Green EV (2) 56 19 27 0.53 0.46 3.86mm SuperBlue EV (2) 39 12 27 0.42 0.37 3.8

    solect6.38mm clear (2) 81 11 11 0.78 0.68 3.66.38mm green (2) 70 10 11 0.57 0.50 3.66.38mm grey (2) 47 8 10 0.51 0.44 3.6

    soltech4mm Soltech (2) 61 8 10 0.62 0.54 3.76mm Soltech (2) 63 9 10 0.62 0.54 3.76mm Soltech Grey (2) 30 5 8 0.42 0.37 3.7

    sunergy (2)4mm Neutral (2) 68 9 10 0.70 0.61 4.26mm Neutral (2) 68 9 10 0.69 0.60 4.110mm Neutral (2) 66 8 10 0.66 0.58 4.16mm Azur (blue) (2) 56 7 9 0.51 0.45 4.16mm Green (2) 56 7 9 0.49 0.42 4.16mm Grey (2) 34 5 9 0.50 0.43 4.1

    VLT VLR VLRi Visible light Visible light Visible light Shading Thickness transmission reflectance reflectance co-efficient SHGC U-value

    Colour and type mm % External % Internal % W/m2K

    sunergy laminated3mm clr / 0.38mm clr PVB / 3mm N Sunergy (4) 6.38 (Neutral) 67 9 10 0.67 0.58 4.14mm clr / 0.38mm clr PVB / 4mm N Sunergy (4) 8.38 67 9 10 0.66 0.57 4.14mm clr / 0.38mm clr PVB / 6mm N Sunergy (4) 10.38 66 8 10 0.65 0.56 4.06mm clr / 0.38mm clr PVB / 6mm N Sunergy (4) 12.38 66 8 10 0.63 0.55 4.03mm clr / 0.76mm clr PVB / 3mm N Sunergy (4) 6.76 67 9 10 0.67 0.58 4.14mm clr / 0.76mm clr PVB / 4mm N Sunergy (4) 8.76 67 9 10 0.66 0.57 4.04mm clr / 0.76mm clr PVB / 6mm N Sunergy (4) 10.76 66 8 10 0.65 0.56 4.06mm clr / 0.76mm clr PVB / 6mm N Sunergy (4) 12.76 65 8 10 0.63 0.54 4.04mm grn / 0.38mm clr PVB / 4mm N Sunergy (4) 8.38 60 8 10 0.55 0.47 4.14mm grn / 0.38mm clr PVB / 6mm N Sunergy (4) 10.38 59 8 10 0.55 0.47 4.06mm grn / 0.38mm clr PVB / 6mm N Sunergy (4) 12.38 56 7 10 0.51 0.44 4.04mm grn / 0.76mm clr PVB / 4mm N Sunergy (4) 8.76 59 8 10 0.55 0.47 4.04mm grn / 0.76mm clr PVB / 6mm N Sunergy (4) 10.76 59 8 10 0.54 0.47 4.06mm grn / 0.76mm clr PVB / 6mm N Sunergy (4) 12.76 56 7 10 0.51 0.44 4.0

  • 135

    VLT VLR VLRi Visible light Visible light Visible light Shading Thickness transmission reflectance reflectance co-efficient SHGC U-value

    Colour and type mm % External % Internal % W/m2K

    sunergy laminated continued4mm gry / 0.38mm clr PVB / 4mm N Sunergy (4) 8.38 41 6 9 0.51 0.44 4.14mm gry / 0.38mm clr PVB / 6mm N Sunergy (4) 10.38 40 6 9 0.51 0.43 4.06mm gry / 0.38mm clr PVB / 6mm N Sunergy (4) 12.38 33 5 9 0.46 0.39 4.04mm gry / 0.76mm clr PVB / 4mm N Sunergy (4) 8.76 41 6 9 0.51 0.44 4.04mm gry / 0.76mm clr PVB / 6mm N Sunergy (4) 10.76 40 6 9 0.51 0.43 4.06mm gry / 0.76mm clr PVB / 6mm N Sunergy (4) 12.76 33 5 9 0.46 0.39 4.04mm sg / 0.38mm clr PVB / 4mm N Sunergy (4) 8.38 55 7 9 0.48 0.41 4.14mm sg / 0.38mm clr PVB / 6mm N Sunergy (4) 10.38 54 7 9 0.48 0.41 4.06mm sg / 0.38mm clr PVB / 6mm N Sunergy (4) 12.38 49 7 9 0.44 0.38 4.04mm sg / 0.76mm clr PVB / 4mm N Sunergy (4) 8.76 54 7 9 0.48 0.41 4.04mm sg / 0.76mm clr PVB / 6mm N Sunergy (4) 10.76 54 7 9 0.48 0.41 4.06mm sg / 0.76mm clr PVB / 6mm N Sunergy (4) 12.76 49 7 9 0.44 0.38 4.06mm az / 0.38mm clr PVB / 6mm N Sunergy (4) 12.38 50 7 9 0.44 0.37 4.06mm az / 0.76mm clr PVB / 6mm N Sunergy (4) 12.76 50 7 9 0.44 0.37 4.03mm clr / 0.38mm grn PVB / 3mm N Sunergy (4) 6.38 (Green) 55 7 10 0.61 0.52 4.14mm clr / 0.38mm grn PVB / 4mm N Sunergy (4) 8.38 55 7 9 0.60 0.51 4.14mm clr / 0.38mm grn PVB / 6mm N Sunergy (4) 10.38 54 7 9 0.59 0.50 4.06mm clr / 0.38mm grn PVB / 6mm N Sunergy (4) 12.38 54 7 9 0.58 0.49 4.03mm clr / 0.76mm grn PVB / 3mm N Sunergy (4) 6.76 55 7 10 0.61 0.52 4.14mm clr / 0.76mm grn PVB / 4mm N Sunergy (4) 8.76 54 7 9 0.60 0.51 4.04mm clr / 0.76mm grn PVB / 6mm N Sunergy (4) 10.76 54 7 9 0.59 0.50 4.06mm clr / 0.76mm grn PVB / 6mm N Sunergy (4) 12.76 53 7 9 0.58 0.49 4.03mm clr / 0.38mm gry PVB / 3mm N Sunergy (4) 6.38 (Grey) 32 5 9 0.51 0.44 4.14mm clr / 0.38mm gry PVB / 4mm N Sunergy (4) 8.38 32 5 9 0.50 0.43 4.14mm clr / 0.38mm gry PVB / 6mm N Sunergy (4) 10.38 32 5 9 0.49 0.42 4.06mm clr / 0.38mm gry PVB / 6mm N Sunergy (4) 12.38 31 5 9 0.49 0.41 4.03mm clr / 0.76mm gry PVB / 3mm N Sunergy (4) 6.76 33 5 9 0.51 0.44 4.14mm clr / 0.76mm gry PVB / 4mm N Sunergy (4) 8.76 33 5 9 0.50 0.43 4.04mm clr / 0.76mm gry PVB / 6mm N Sunergy (4) 10.76 33 5 9 0.49 0.42 4.06mm clr / 0.76mm gry PVB / 6mm N Sunergy (4) 12.76 32 5 9 0.49 0.41 4.03mm clr / 0.38mm brz PVB / 3mm N Sunergy (4) 6.38 40 6 9 0.54 0.46 4.14mm clr / 0.38mm brz PVB / 4mm N Sunergy (4) 8.38 40 6 9 0.53 0.45 4.14mm clr / 0.38mm brz PVB / 6mm N Sunergy (4) 10.38 39 6 9 0.52 0.44 4.06mm clr / 0.38mm brz PVB / 6mm N Sunergy (4) 12.38 39 6 9 0.51 0.44 4.03mm clr / 0.38mm c_blu PVB / 3mm N Sunergy (4) 6.38 (Cool Blue) 59 8 10 0.64 0.55 4.14mm clr / 0.38mm c_blu PVB / 4mm N Sunergy (4) 8.38 59 8 10 0.62 0.54 4.14mm clr / 0.38mm c_blu PVB / 6mm N Sunergy (4) 10.38 58 8 10 0.61 0.53 4.06mm clr / 0.38mm c_blu PVB / 6mm N Sunergy (4) 12.38 58 8 10 0.60 0.52 4.04mm clr / 0.38mm clr PVB / 6mm grn Sunergy (4) 10.38 54 7 9 0.48 0.41 4.04mm clr / 1.52mm clr PVB / 6mm grn Sunergy (4) 11.52 54 7 9 0.48 0.41 3.96mm clr / 0.38mm clr PVB / 6mm grn Sunergy (4) 12.38 54 7 9 0.47 0.40 4.06mm clr / 1.52mm clr PVB / 6mm grn Sunergy (4) 13.52 54 7 9 0.47 0.40 3.94mm clr / 0.38mm clr PVB / 6mm azur Sunergy (4) 10.38 54 7 9 0.50 0.43 4.04mm clr / 1.52mm clr PVB / 6mm azur Sunergy (4) 11.52 54 7 9 0.50 0.43 3.96mm clr / 0.38mm clr PVB / 6mm azur Sunergy (4) 12.38 54 7 9 0.49 0.42 4.06mm clr / 1.52mm clr PVB / 6mm azur Sunergy (4) 13.52 54 7 9 0.49 0.42 3.9

    sungate 5004mm Sungate 500 (2) 83 11 11 0.84 0.73 3.96mm Sungate 500 (2) 82 11 11 0.81 0.70 3.9

    XIR 72-47 laminated6mm clr / XIR film / PVB / 6mm N Sunergy (4) 12.76 54 8 10 0.43 0.37 4.06mm clr / XIR film / PVB / 6mm et (4) 12.76 62 9 11 0.45 0.39 3.7

  • 136

    VLT VLR VLRi Visible light Visible light Visible light Shading transmission reflectance reflectance co-efficient SHGC U-value

    Colour and type % External % Internal % W/m2K

    laminated

    clear6.38mm 88 9 9 0.92 0.79 5.86.76mm 88 9 9 0.91 0.79 5.78.38mm 86 9 9 0.87 0.75 5.78.76mm 87 9 9 0.86 0.75 5.610.38mm 85 9 9 0.84 0.72 5.610.76mm 85 9 9 0.83 0.72 5.612.38mm 84 8 8 0.81 0.70 5.612.76mm 84 9 9 0.80 0.70 5.5

    tinted PVB6.38mm Bronze 53 7 7 0.75 0.65 5.86.38mm Cool Blue 74 7 7 0.86 0.75 5.86.38mm Green 72 8 8 0.84 0.73 5.86.38mm Grey 44 6 6 0.72 0.62 5.88.38mm Bronze 51 7 7 0.71 0.61 5.78.38mm Cool Blue 73 8 8 0.82 0.71 5.78.38mm Green 70 8 8 0.79 0.69 5.78.38mm Grey 43 6 6 0.69 0.59 5.710.38mm Bronze 50 6 6 0.69 0.59 5.610.38mm Cool Blue 72 8 8 0.80 0.69 5.610.38mm Green 69 8 8 0.77 0.66 5.610.38mm Grey 42 6 6 0.67 0.58 5.612.38mm Bronze 50 6 6 0.67 0.58 5.612.38mm Cool Blue 70 8 8 0.77 0.66 5.612.38mm Green 69 7 7 0.75 0.65 5.612.38mm Grey 43 7 7 0.65 0.56 5.66.38mm SuperGreen 65 7 7 0.58 0.50 5.7

    white translucent PVB6.38mm 58 6 6 0.76 0.66 5.88.38mm 57 6 6 0.74 0.64 5.710.38mm 56 6 6 0.72 0.62 5.612.38mm 56 6 6 0.71 0.61 5.6

    VLT VLR VLRi Visible light Visible light Visible light Shading Thickness transmission reflectance reflectance co-efficient SHGC U-value

    Colour and type mm % External % Internal % W/m2K

    IGUs double glazing

    clear (6mm air)3mm clr / 6mm / 3mm clr 12 81 15 15 0.88 0.76 3.14mm clr / 6mm / 4mm clr 14 80 15 15 0.85 0.74 3.1

    clear (12mm air)3mm clr / 12mm / 3mm clr 18 81 15 15 0.88 0.77 2.74mm clr / 12mm / 4mm clr 20 80 15 15 0.85 0.74 2.75mm clr / 12mm / 5mm clr 22 79 15 15 0.84 0.72 2.76mm clr / 12mm / 6mm clr 24 78 15 15 0.81 0.70 2.7

    clear (6mm argon gas filled)3mm clr / 6mm arg / 3mm clr 12 81 15 15 0.88 0.76 2.84mm clr / 6mm arg / 4mm clr 14 80 15 15 0.85 0.74 2.8

  • 137

    VLT VLR VLRi Visible light Visible light Visible light Shading Thickness transmission reflectance reflectance co-efficient SHGC U-value

    Colour and type mm % External % Internal % W/m2K

    IGUs double glazing continued

    clear (12mm argon gas filled)3mm clr / 12mm arg / 3mm clr 18 81 15 15 0.88 0.77 2.64mm clr / 12mm arg / 4mm clr 20 81 15 15 0.86 0.75 2.65mm clr / 12mm arg / 5mm clr 22 80 14 14 0.84 0.73 2.66mm clr / 12mm arg / 6mm clr 24 79 15 15 0.82 0.71 2.5

    clear with energytech low-E (6mm argon gas filled)4mm clr / 6mm / 4mm et (3) 14 74 17 16 0.79 0.69 2.14mm et (2) / 6mm / 4mm clr 14 74 16 17 0.73 0.63 2.1

    clear with energytech low-E (12mm argon gas filled)4mm clr / 12mm arg / 4mm et (3) 20 74 17 16 0.81 0.70 1.66mm clr / 12mm arg / 6mm et (3) 24 73 17 16 0.78 0.68 1.64mm et (2) / 12mm arg / 4mm clr 20 74 16 17 0.73 0.64 1.66mm et (2) / 12mm arg / 6mm clr 24 73 16 17 0.71 0.62 1.64mm et (2) / 12mm arg / 4mm et (3) 20 68 18 18 0.70 0.61 1.56mm et (2) / 12mm arg / 6mm et (3) 24 68 17 17 0.69 0.60 1.56.38mm clr / 12mm arg / 6mm et (3) 24.38 73 17 16 0.76 0.66 1.6

    tinted (6mm air)4mm Green / 6mm / 4mm clr 14 73 13 14 0.67 0.58 3.14mm Grey / 6mm / 4mm clr 14 50 8 12 0.64 0.56 3.14mm SuperGreen / 6mm / 4mm clr 14 66 11 13 0.58 0.48 3.1

    tinted (12mm air)6mm Azuria / 12mm / 6mm clr 24 61 10 13 0.45 0.39 2.76mm Bronze / 12mm / 6mm clr 24 43 7 12 0.57 0.50 2.76mm Caribia / 12mm / 6mm clr 24 60 10 13 0.46 0.40 2.75mm Dark Grey / 12mm / 5mm clr 22 19 5 11 0.50 0.44 2.76mm Dark Grey / 12mm / 6mm clr 24 14 4 11 0.46 0.40 2.74mm Green / 12mm / 4mm clr 20 73 13 14 0.67 0.58 2.75mm Green / 12mm / 5mm clr 22 70 12 13 0.60 0.52 2.76mm Green / 12mm / 6mm clr 24 68 12 13 0.57 0.50 2.74mm Grey / 12mm / 4mm clr 20 50 8 12 0.64 0.55 2.75mm Grey / 12mm / 5mm clr 22 42 7 12 0.57 0.50 2.76mm Grey / 12mm / 6mm clr 24 37 7 11 0.52 0.46 2.76mm SuperBlue / 12mm / 6mm clr 24 47 8 12 0.46 0.40 2.74mm SuperGreen / 12mm / 4mm clr 20 66 11 13 0.54 0.47 2.75mm SuperGreen / 12mm / 5mm clr 22 62 10 13 0.50 0.44 2.76mm SuperGreen / 12mm / 6mm clr 24 59 10 12 0.47 0.41 2.76mm SuperGrey / 12mm / 6mm clr 24 8 4 11 0.25 0.22 2.7

    tinted (6mm argon gas filled)4mm Green / 6mm / 4mm clr 14 73 13 14 0.67 0.58 2.94mm Grey / 6mm / 4mm clr 14 50 8 12 0.64 0.56 2.94mm SuperGreen / 6mm / 4mm clr 14 66 11 13 0.54 0.47 2.9

  • VLT VLR VLRi Visible light Visible light Visible light Shading Thickness transmission reflectance reflectance co-efficient SHGC U-value

    Colour and type mm % External % Internal % W/m2K

    IGUs double glazing continued

    tinted (12mm argon gas filled)6mm Azuria / 12mm / 6mm clr 24 61 10 13 0.45 0.39 2.56mm Bronze / 12mm / 6mm clr 24 43 7 12 0.57 0.50 2.56mm Caribia / 12mm / 6mm clr 24 60 10 13 0.45 0.39 2.55mm Dark Grey / 12mm / 5mm clr 22 19 5 11 0.50 0.43 2.56mm Dark Grey / 12mm / 6mm clr 24 14 5 11 0.45 0.39 2.54mm Green / 12mm / 4mm clr 20 73 13 14 0.66 0.58 2.55mm Green / 12mm / 5mm clr 22 70 12 13 0.60 0.52 2.56mm Green / 12mm / 6mm clr 24 68 12 13 0.57 0.50 2.54mm Grey / 12mm / 4mm clr 20 50 8 12 0.63 0.55 2.55mm Grey / 12mm / 5mm clr 22 42 7 12 0.57 0.50 2.56mm Grey / 12mm / 6mm clr 24 37 7 11 0.52 0.45 2.56mm SuperBlue / 12mm / 6mm clr 24 47 8 12 0.45 0.39 2.54mm SuperGreen / 12mm / 4mm clr 20 66 11 13 0.54 0.47 2.55mm SuperGreen / 12mm / 5mm clr 22 62 10 13 0.50 0.43 2.56mm SuperGreen / 12mm / 6mm clr 24 59 10 12 0.46 0.40 2.56mm SuperGrey / 12mm / 6mm clr 24 8 4 11 0.24 0.21 2.5

    tinted with energytech low-E (6mm argon gas filled)4mm Green / 6mm / 4mm et (3) 14 68 15 16 0.60 0.53 2.14mm Grey / 6mm / 4mm et (3) 14 46 9 15 0.58 0.50 2.14mm SuperGreen / 6mm / 4mm et (3) 14 61 13 15 0.48 0.42 2.1

    tinted with energytech low-E (12mm argon gas filled)6mm Azuria / 12mm / 6mm et (3) 24 56 12 15 0.38 0.33 1.66mm Bronze / 12mm / 6mm et (3) 24 40 8 14 0.51 0.44 1.66mm Caribia / 12mm / 6mm et (3) 24 56 12 15 0.38 0.33 1.65mm Dark Grey / 12mm / 4mm et (3) 21 18 5 14 0.44 0.38 1.66mm Dark Grey / 12mm / 6mm et (3) 24 13 5 14 0.39 0.34 1.64mm Green / 12mm / 4mm et (3) 20 68 15 16 0.60 0.52 1.65mm Green / 12mm / 4mm et (3) 21 66 15 16 0.54 0.47 1.66mm Green / 12mm / 6mm et (3) 24 63 14 16 0.51 0.44 1.64mm Grey / 12mm / 4mm et (3) 20 46 9 15 0.57 0.50 1.65mm Grey / 12mm / 4mm et (3) 21 39 8 14 0.50 0.44 1.66mm Grey / 12mm / 6mm et (3) 24 34 7 14 0.46 0.40 1.66mm SuperBlue / 12mm / 6mm et (3) 24 43 9 15 0.38 0.33 1.64mm SuperGreen / 12mm / 4mm et (3) 20 61 13 15 0.47 0.41 1.65mm SuperGreen / 12mm / 4mm et (3) 21 59 12 15 0.43 0.38 1.66mm SuperGreen / 12mm / 6mm et (3) 24 55 12 15 0.39 0.34 1.66mm SuperGrey / 12mm / 6mm et (3) 24 7 4 13 0.17 0.14 1.66.38mm grey / 12mm / 6mm et (3) 24.38 35 7 14 0.52 0.45 1.66.38mm green / 12mm / 6mm et (3) 24.38 59 12 15 0.67 0.58 1.6

    evantage (12mm air)6mm Clear EV (2) / 12mm / 6mm clr 24 61 27 28 0.64 0.56 2.06mm Grey EV (2) / 12mm / 6mm clr 24 29 10 29 0.39 0.34 2.06mm SuperGreen EV (2) / 12mm / 6mm clr 24 44 17 29 0.34 0.30 2.06mm Blue / Green EV (2) / 12mm / 6mm clr 24 51 21 29 0.44 0.38 2.06mm SuperBlue EV (2) / 12mm / 6mm clr 24 35 13 29 0.33 0.29 2.0

    evantage (12mm argon filled)6mm Clear EV (2) / 12mm / 6mm clr 24 61 27 28 0.64 0.56 1.76mm Grey EV (2) / 12mm / 6mm clr 24 29 10 29 0.38 0.33 1.76mm SuperGreen EV (2) / 12mm / 6mm clr 24 44 17 29 0.33 0.29 1.76mm Blue / Green EV (2) / 12mm / 6mm clr 24 51 21 29 0.43 0.38 1.76mm SuperBlue EV (2) / 12mm / 6mm clr 24 35 13 29 0.32 0.28 1.7

    138

  • 139

    VLT VLR VLRi Visible light Visible light Visible light Shading Thickness transmission reflectance reflectance co-efficient SHGC U-value

    Colour and type mm % External % Internal % W/m2K

    IGUs double glazing continued

    soltech (12mm air)4mm Soltech (2) / 12mm / 4mm clr 20 55 11 16 0.53 0.46 1.96mm Soltech (2) / 12mm / 6mm clr 24 56 11 15 0.53 0.46 1.96mm Soltech Grey (2) / 12mm / 6mm clr 24 26 6 13 0.33 0.27 1.9

    soltech (12mm argon filled)4mm Soltech (2) / 12mm / 4mm clr 20 55 11 16 0.53 0.46 1.66mm Soltech (2) / 12mm / 6mm clr 24 56 11 15 0.52 0.45 1.66mm Soltech Grey (2) / 12mm / 6mm clr 24 26 6 13 0.32 0.27 1.6

    sunergy (6mm air)4mm N Sunergy (2) / 6mm / 4mm clr 14 62 12 16 0.62 0.54 2.74mm clr / 6mm clr / 4mm N Sunergy (3) 14 62 16 12 0.74 0.65 2.7

    sunergy (12mm air)4mm N Sunergy (2) / 12mm / 4mm clr 20 62 12 16 0.61 0.53 2.16mm N Sunergy (2) / 12mm / 6mm clr 24 60 12 15 0.59 0.51 2.110mm N Sunergy (2) / 12mm / 8mm clr 30 58 12 15 0.56 0.48 2.14mm clr / 12mm / 4mm N Sunergy (3) 20 62 16 12 0.76 0.66 2.16mm clr / 12mm / 6mm N Sunergy (3) 24 60 15 12 0.72 0.63 2.16mm azur Sunergy (2) / 12mm / 6mm clr 24 49 10 15 0.41 0.36 2.16mm green Sunergy (2) / 12mm / 6mm clr 24 50 10 15 0.39 0.34 2.16mm grey Sunergy (2) 12mm / 6mm clr 24 30 6 14 0.39 0.34 2.16.38mm Sunergy clr PVB (2) / 12mm / 5mm clr 23.38 60 13 16 0.57 0.50 2.16.38mm Sunergy gry PVB (2) / 12mm / 5mm clr 23.38 29 6 15 0.40 0.35 2.1

    sunergy (6mm argon filled)4mm N Sunergy (2) / 6mm / 4mm clr 14 62 12 16 0.61 0.53 2.34mm clr / 6mm clr / 4mm N Sunergy (3) 14 62 16 12 0.75 0.65 2.3

    sunergy (12mm argon filled)4mm N Sunergy (2) / 12mm / 4mm clr 20 62 12 16 0.61 0.53 1.96mm N Sunergy (2) / 12mm / 6mm clr 24 60 12 15 0.58 0.51 1.910mm N Sunergy (2) / 12mm / 8mm clr 30 58 12 15 0.56 0.48 1.84mm clr / 12mm / 4mm N Sunergy (3) 20 62 16 12 0.77 0.67 1.96mm clr / 12mm / 6mm N Sunergy (3) 24 60 15 12 0.73 0.63 1.96mm azur Sunergy (2) / 12mm / 6mm clr 24 50 10 15 0.41 0.35 1.96mm green Sunergy (2) / 12mm / 6mm clr 24 50 10 15 0.38 0.33 1.96mm grey Sunergy (2) 12mm / 6mm clr 24 30 6 14 0.38 0.33 1.96.38mm Sunergy clr PVB (2) / 12mm / 5mm clr 23.38 60 13 16 0.57 0.50 2.16.38mm Sunergy gry PVB (2) / 12mm / 5mm clr 23.38 29 6 15 0.40 0.35 2.1

    solarcool with clear (12mm air)6mm Solarcool Azuria (2) / 12mm / 6mm clr 24 23 19 37 0.29 0.25 2.76mm Solarcool Grey (2) / 12mm / 6mm clr 24 15 11 36 0.36 0.32 2.7

    solarcool with clear (12mm argon gas filled)6mm Solarcool Azuria (2) / 12mm arg / 6mm clr 24 23 20 37 0.28 0.25 2.56mm Solarcool Grey (2) / 12mm arg / 6mm clr 24 15 11 36 0.36 0.31 2.5

    solarcool with energytech low-E (12mm air)6mm Solarcool Azuria (2) / 12mm arg / 6mm et (3) 24 22 20 36 0.23 0.20 1.96mm Solarcool Grey (2) / 12mm arg / 6mm et (3) 24 15 11 36 0.30 0.26 1.9

  • VLT VLR VLRi Visible light Visible light Visible light Shading Thickness transmission reflectance reflectance co-efficient SHGC U-value

    Colour and type mm % External % Internal % W/m2K

    IGUs double glazing continued

    solarcool with energytech low-E (12mm argon gas filled)6mm Solarcool Azuria (2) / 12mm arg / 6mm et (3) 24 22 20 36 0.22 0.19 1.66mm Solarcool Grey (2) / 12mm arg / 6mm et (3) 24 15 11 36 0.29 0.25 1.6

    reflective vacuum coated: solarplus (12mm air)6mm SS22 on Azuria float (2) / 12mm air / 6mm clr 24 15 15 35 0.22 0.19 2.46mm SS22 on bronze float (2) / 12mm air / 6mm clr 24 11 11 35 0.25 0.21 2.46mm SS22 on clear float (2) / 12mm air / 6mm clr 24 18 24 35 0.27 0.23 2.46mm SS22 on Dark Blue (2) / 12mm air / 6mm clr 24 12 13 35 0.23 0.20 2.46mm SS22 on Evergreen float (2) / 12mm air / 6mm clr 24 14 17 35 0.22 0.19 2.46mm SS22 on green float (2) / 12mm air / 6mm clr 24 16 20 35 0.24 0.20 2.46mm SS22 on grey float (2) / 12mm air / 6mm clr 24 8 9 35 0.23 0.19 2.46mm TS21 on Azuria float (2) / 12mm air / 6mm clr 24 14 16 35 0.21 0.18 2.46mm TS21 on bronze float (2) / 12mm air / 6mm clr 24 11 11 36 0.23 0.20 2.46mm TS21 on clear float (2) / 12mm air / 6mm clr 24 19 23 35 0.25 0.22 2.46mm TS21 on Dark Blue (2) / 12mm air / 6mm clr 24 12 13 35 0.22 0.19 2.46mm TS21 on Evergreen float (2) / 12mm air / 6mm clr 24 14 15 36 0.22 0.19 2.46mm TS21 on green float (2) / 12mm air / 6mm clr 24 16 18 36 0.23 0.20 2.46mm TS21 on grey float (2) / 12mm air / 6mm clr 24 9 9 36 0.22 0.19 2.46mm TS30 on Azuria float (2) / 12mm air / 6mm clr 24 21 12 32 0.25 0.21 2.56mm TS30 on bronze float (2) / 12mm air / 6mm clr 24 16 9 32 0.29 0.25 2.56mm TS30 on clear float (2) / 12mm air / 6mm clr 24 27 18 33 0.33 0.28 2.56mm TS30 on Dark Blue (2) / 12mm air / 6mm clr 24 17 10 32 0.27 0.23 2.56mm TS30 on Evergreen float (2) / 12mm air / 6mm clr 24 20 12 32 0.26 0.22 2.56mm TS30 on green float (2) / 12mm air / 6mm clr 24 23 15 32 0.28 0.24 2.56mm TS30 on grey float (2) / 12mm air / 6mm clr 24 13 8 32 0.26 0.22 2.5

    reflective vacuum coated solarplus with energytech low E (12mm air)6mm SS22 on Azuria float (2) / 12mm air / 6mm et (3) 24 14 16 33 0.18 0.15 1.96mm SS22 on bronze float (2) / 12mm air / 6mm et (3) 24 10 11 33 0.20 0.18 1.96mm SS22 on clear float (2) / 12mm air / 6mm et (3) 24 17 24 33 0.24 0.20 1.96mm SS22 on Dark Blue (2) / 12mm air / 6mm et (3) 24 11 14 34 0.19 0.16 1.96mm SS22 on Evergreen float (2) / 12mm air / 6mm et (3) 24 13 17 34 0.18 0.15 1.96mm SS22 on green float (2) / 12mm air / 6mm et (3) 24 15 20 33 0.19 0.17 1.96mm SS22 on grey float (2) / 12mm air / 6mm et (3) 24 8 9 34 0.18 0.16 1.96mm TS21 on Azuria float (2) / 12mm air / 6mm et (3) 24 13 16 34 0.17 0.15 1.96mm TS21 on bronze float (2) / 12mm air / 6mm et (3) 24 10 11 34 0.19 0.16 1.96mm TS21 on clear float (2) / 12mm air / 6mm et (3) 24 17 23 34 0.22 0.19 1.96mm TS21 on Dark Blue (2) / 12mm air / 6mm et (3) 24 11 13 34 0.18 0.15 1.96mm TS21 on Evergreen float (2) / 12mm air / 6mm et (3) 24 13 15 34 0.17 0.15 1.96mm TS21 on green float (2) / 12mm air / 6mm et (3) 24 15 18 34 0.19 0.16 1.96mm TS21 on grey float (2) / 12mm air / 6mm et (3) 24 8 9 34 0.17 0.15 1.96mm TS30 on Azuria float (2) / 12mm air / 6mm et (3) 24 19 12 31 0.20 0.17 1.96mm TS30 on bronze float (2) / 12mm air / 6mm et (3) 24 15 9 31 0.24 0.21 1.96mm TS30 on clear float (2) / 12mm air / 6mm et (3) 24 25 18 31 0.29 0.25 1.96mm TS30 on Dark Blue (2) / 12mm air / 6mm et (3) 24 16 10 31 0.22 0.19 1.96mm TS30 on Evergreen float (2) / 12mm air / 6mm et (3) 24 19 13 31 0.21 0.18 1.96mm TS30 on green float (2) / 12mm air / 6mm et (3) 24 22 15 31 0.23 0.20 1.96mm TS30 on grey float (2) / 12mm air / 6mm et (3) 24 12 8 31 0.21 0.18 1.9

    optiview anti reflecting glass6.38mm 92 1.7 1.7 0.89 0.77 4.612.38mm 90 1.6 1.6 0.83 0.72 4.4

    * All performance data is calculated using Window 6.3 NFRC 100-2010 conditions producing centre of glass values.

    140

  • 141

    A

    AbstractoWired glass.

    Activ PilkingtonSelf cleaning glass.

    AFG Hi-Performance AFG/AFGDReflective and/or low-E coated Glass: Vacuum coated monolithic and laminated glass.

    Amiran SchottAnti-reflecting glass.

    Antelio St GobainPyrolytic coated reflective glass.

    Anti-bandit Pilkington11.52mm laminated glass.

    Anti-Fade PilkingtonRange of UV reduction glass.

    Antisun PilkingtonBody tinted/toned glass.Refer Austint/Comfortone/Optifloat range.

    Armourfloat PilkingtonToughened glass.

    Aquavue PGPatterned glass.

    ArmaClear G.James GlassRange of security and bullet resistant glass products.

    Atlantica PPGBody tinted/toned glass: Darker and superior performer to normal green glass.Formerly known as Solargreen.

    Austint PilkingtonBody tinted/toned glass: Standard grey, bronze and green range.See also Comfortone/Optifloat range.

    Arctic Blue PilkingtonBody tinted/toned glass: Blue float.

    Arctic Blue Eclipse PilkingtonPyrolytic coated reflective glass.

    Asian BlueBody tinted/toned glass: Generic name for blue tinted glass from various Asian manufacturers.

    Azuria PPGBody tinted/toned glass: Sky blue (non reflective blue float).Formerly known as Azurlite.

    Azurlite PPGBody tinted/toned glass: Sky blue (non reflective blue float).

    B

    B-270 SchottNo iron glass designed for motion picture projection rooms.

    Belgium Grey GlaverbelBody tinted/toned glass: Old green grey float.Not available.

    Bioclean Saint GobainLow maintenance, easy cleaning glass.

    Blackpearl Glaverbel8mm thick dark black coloured pyrolytic coated temperable spandrel glass.

    Borofloat SchottHeat resistant glass: Rated to 450C.

    Borosilicate Refer Borofloat.

    Broadline PilkingtonPatterned glass.

    C

    Cardinal CardinalReflective vacuum coated glass.

    Caribia PPGBody tinted/toned glass.

    Cathedral PilkingtonPatterned glass.

    ChromaFusion DuPontDecorative interlayers for laminated glass.

    CIPMethod of laminated glass manufacture.

    Clear Polished Wired GlassWired glass and used in fire resistant glazing.See also Georgian Polished Wired.

    Colourback PilkingtonCeramic based painted glass.

    Colourclad PilkingtonCeramic based painted glass.

    Colourlite G.James GlassCeramic based painted glass.

    Comfort E & TI AFGRange of pyrolytic and vacuum coated low-E glass.

    ComfortPlus ViridianLaminated glass with low-E coating.

    ComfortSave ViridianMonolithic clear and neutral coloured pyrolytic low-E coated glass.

    ComforTone PilkingtonBody tinted/toned glass: Standard 4/5mm grey, bronze, green range and laminated glass.See also Optifloat range.

    Contraflam St GobainHeat and fire resistant safety glass sealed glazing unit with clear heat absorbing gel.

    Cool-lite St GobainReflective vacuum coated glass.

    Cool-lite SKN 0xx St GobainLow Iron Diamant low-E vacuum coated glass.

    Cool-lite ST St GobainClear or Parsol Green temperable vacuum coated glass.

    Coolpane Architectural Glass InternationalReflective vacuum coated monolithic and laminated glass.

    CorellaPatterned glass.

    CrosslitePatterned glass.

    CrossreedPatterned glass.

    Cyclone Resistant Laminated glass and framing system designed to resist penetration of flying debris in the event of breakage.

    D

    Dark Grey AsahimasBody tinted/toned glass: Standard dark grey tinted glass.

    Datastop PilkingtonGlass designed to reduce transmission of electromagnetic radiation.

    Decorative Formed PilkingtonKiln fired formed glass (slumped).

    DecorColour - ViridianSee also Vanceva.

    DecorMirror - ViridianClear and tinted mirror glass.

    DecorMirror Safe - ViridianVinyl Back mirror.

    DecorPattern - ViridianRange of Pilkington white and toned patterned and wired glass.

    DecorPanel ViridianGrade A painted vinyl backed glass.

    DecorSatin ViridianAcid etched glass.

    DeltaWired glass.

    Diamant St GobainLow-iron ultra clear glass.

    DiamondGuard SRGScratch resistant glass.

    Diffused2mm thick non reflective picture framing glass.

    DigiGlass Image creations in laminated glass.

    DuPontInterlayer manufacturer for laminated glass.

    DuPont Sentry Glass Expressions DuPontImages creations in laminated glass.

    E

    Eclipse PilkingtonPyrolytic coated reflective glass: Grey, bronze, blue-green, gold, clear, Evergreen and Arctic Blue colours.

    Eclipse Advantage PilkingtonPyrolytic coated reflective low-E glass: Grey, bronze, blue-green, clear, Evergreen and Arctic Blue colours.

    Eglas St GobainHeatable glass.

    Ekoplus St GobainPyrolytic low-E coated glass.

    Eliotherm St GobainReflective glass.

    Energy Advantage PilkingtonPyrolytic low-E coated glass.

    EnergyTech ViridianPyrolytic low-E coated glass.See also Energy Advantage.

    Enviro-mental screen G.JamesReflective and standard laminated glass.

    Enviroshield Performance ViridianLaminated glass: Low-E coating and solar control interlayer.See also Solar E Plus.

    Enviroshield Reflective ViridianTS, SS and SL range on clear and toned glass.

    EuroGrey AsahimasBody tinted/toned glass: Standard grey tinted glass.

    EVantage ViridianPyrolytic coated reflective low-E glass. Grey, bronze, blue-green, SuperGreen and SuperBlue colours.See also Eclipse Advantage.

    EverGreen PilkingtonBody tinted/toned glass: Darker and superior performer to normal green glass.

    product trade names

  • 142

    F

    Flemish PilkingtonPatterned glass.

    Firelite NipponHeat and fire resistant ceramic non safety glass.

    Firelite NT NipponHeat and fire resistant 3M filmed ceramic safety glass.

    Firelite Plus NipponHeat and fire resistant laminated ceramic safety glass.

    Firelite IGU NipponHeat and fire resistant ceramic safety and non safety glass.

    Fivestar St GobainHeat and fire resistant tempered safety glass.

    Flashed OpalLight diffusing glass.

    Ford Blue LOFBody tinted/toned glass: Blue float.

    Frontline PilkingtonBushfire resistant glass.

    French Green Taiwan GlassBody tinted/toned glass.

    G

    Georgian Polished WiredSee also Clear Polished Wired.

    GluechipPatterned glass.

    Graylite PPGBody tinted/toned glass: Dark grey float.

    I

    Insulight/Insulight U Plus PilkingtonDouble glazed units.

    Interpane InterpaneReflective vacuum coated monolithic and laminated glass.

    IntruderGuard ViridianSee also LamGuard.

    J

    Jailsafe PilkingtonJailsafe toughened laminated security glass range.

    K

    K-Glass PilkingtonPyrolytic low-E coated glass.

    Koolvue AFGBody tinted/toned glass: Bronze float.

    Kosciusko PilkingtonPatterned glass.

    Krystal Klear AFGLow-iron ultra clear glass.

    L

    LamGuard Pilkington6.52mm laminated glass.

    LEPrefix for range of vacuum coated low-E glass.

    Lead GlassRadiation shielding glass.

    LHR PPGLight and heat reflecting pyrolytic coated heat strengthened glass.

    Liquid PourMethod of laminated glass manufacture.

    Low-T Gray AFGBody tinted/toned glass: Grey float.

    Luxar Glas Troesch AG, Hy-Tech-GlassAnti-reflecting glass.

    LVC Taiwan GlassRange of pyrolytic coated reflective glass.

    M

    Magic ScreenGlass DMDSwitchable privacy glass.

    Matelux GlaverbelAcid etched glass.

    Med-X PilkingtonRadiation shielding glass.

    Mirage PilkingtonHard coat reflective glass for mirror, privacy and retail glazing.

    Miralite-Evolution St GobainMirror product: Copper and lead free.

    Miralux GlaverbelMirror product: Copper and lead free.

    Mirogard SchottOptically coated non reflective glass.

    Mirrorpane PilkingtonReflective observation or one way security mirror.

    MonumentalPatterned glass.

    N

    Narrowreed PilkingtonPatterned glass.

    Neoceram BromicHeat resistant ceramic glass: Rated to 700C.

    New Cathedral PilkingtonPatterned glass.

    O

    Obscura PilkingtonWired glass.

    Observa PilkingtonReflective observation or one way security laminated mirror.

    Ocean Blue Taiwan GlassBody tinted/toned glass.

    Opacilam DMSPainted laminated glass.

    Optifloat PilkingtonClear float glass and body tinted/toned glass.

    Optigray 23 PPGBody tinted/toned glass: Colour appearance in between standard grey tint and Graylite.

    Optilam PilkingtonRange or various types of laminated glass.

    Optilam Phon PilkingtonLaminated glass for noise reduction.

    Optilight G.James GlassRange of hi-performance laminated glass products using low-E coated glass.

    Optimirror PilkingtonStandard mirror product with no copper layer.

    Optimirror Protect PilkingtonGrade A safety organic coated vinyl back mirror.

    Optipanel Pilkington4mm white painted glass with Grade A vinyl coating for wardrobe door applications.

    Optiview ViridianLaminated pyrolytic coated anti-reflecting glass.

    Optiwhite PilkingtonLow-iron ultra clear glass.

    P

    Panasap AsahimasBody tinted/toned glass: EuroGrey, green, dark blue, dark grey and bronze.

    Parelio St GobainReflective glass.

    Parlux St GobainReflective glass.

    Parsol St GobainBody tinted/toned glass: European range of grey, bronze, green and pink.

    Patternlite G.James GlassLight diffusing patterns using ceramic based painted glass.

    PeformaTech E ViridianHigh performance low-e IGUs

    Planar PilkingtonStructural glazing system.

    Planibel GlaverbelBody tinted/toned glass: European range of grey, bronze, green, Azur and Priva Blue.

    Planibel GlaverbelPlanibel Plus, Top N, Energy and G: Range of low-E coated glass.

    Planitherm Futur N St GobainClear float temperable low-E glass vacuum coated.

    Polarex PilkingtonReflective observation or one way security mirror.

    Priva Blue GlaverbelBody tinted/toned glass.

    Priva-Lite St GobainLiquid crystal privacy glass.

    Profilit PilkingtonSelf supporting glazing system of U-shaped profiled glass.

    Pyran S SchottHeat and fire resistant tempered safety glass.

    Pyrobel/Pyrobelite GlaverbelHeat and fire resistant intumescent interlayered safety glass.

    PyroceramRefer Neoceram.

    Pyrodur PilkingtonHeat and fire resistant laminated safety glass for integrity only.

    PyroGuard 40 - ViridianIGU used in bushfire prone areas

    Pyroshield PilkingtonClear Polished Wired Glass.

    Pyrostop PilkingtonHeat and fire resistant intumescent interlayered safety glass.

    Pyroswiss St GobainHeat and fire resistant: Heat modified calcium silica based extra clear tempered safety glass.

    Q

    Qualage PilkingtonPatterned glass.

    R

    Reflectafloat PilkingtonPyrolytic coated reflective glass.

    Reflectasol St GobainSilcone based coated reflective glass.

    Renew ViridianSelf cleaning glass.See also Activ.

    Robax SchottHeat resistant ceramic glass: Rated to 700C.

    S

    Saflex DuPontRange of special coloured interlayers.

    Satina PinarAcid etched glass.

    Satinlite PilkingtonPatterned glass.

    Satinlite Low iron PilkingtonPatterned glass.

    SC-Prefix for range of vacuum coated glass.

    Scintilla PilkingtonWired glass.

    Screenview Taiwan GlassPatterned glass.

    Seadrift PilkingtonPatterned glass.

    Securiflam Vetrotech/ St GobainHeat and fire resistant tempered safety glass.

    SentryGlas Plus DuPontSpecial high strength interlayer for laminated glass.

  • 143

    SentryGlas Expressions DuPontDecorative glass with imprinted interlayer.

    Seracool PilkingtonCeramic based painted glass.

    Seraphic PilkingtonCeramic based painted glass.

    ShowerGuard GuardianEasy to clean permanent coated glass for shower screens.

    ShowertexCathedral patterned glass laminated.

    SL-Prefix for range of vacuum coated glass.

    Soft White LaminatedLight diffusing laminated glass.

    Solar PPGBody tinted/toned glass: Solarbronze and Solargrey.

    Solarban PPGRange of vacuum coated low-E solar control glass.

    Solarban 60 Starphire PPGVacuum coated low-E on low-iron Starphire glass base.

    Solarbel GlaverbelReflective soft coat monolithic and laminated glass.

    Solarcool PPGPyrolytic coated reflective glass: Solarcool Caribia, Solexia (formerly Solex), Azuria (formerly Azurlite), bronze, grey and Graylite.

    SolarE PilkingtonLaminated glass with low-E coating.

    SolarE Plus PilkingtonLaminated glass: Low-E coating and solar control interlayer.

    Solarflex Reflective Glass Taiwan GlassReflective and/or low-E coated glass: Vacuum coated monolithic and laminated glass.

    Solarfoil G.James GlassReflective and/or low-E coated glass: Vacuum coated monolithic and laminated glass.

    Solargreen PPGBody tinted/toned glass: Darker and superior performer to normal green glass.

    Solarguard Glassguard/ Glass FormReflective laminated glass utilising special film.

    Solarplus G.James GlassReflective and/or low-E coated glass: Vacuum coated monolithic and laminated glass.

    SolarPro China SouthernReflective and/or low-E coated glass: Vacuum coated monolithic and laminated glass.

    Solarscreen ViraconReflective and/or low-E coated glass: Vacuum coated monolithic and laminated glass.

    SolarshieldReflective glass.

    Solartag Thai/AsahiReflective vacuum coated monolithic and laminated glass.

    Solect G.James GlassLaminated glass with low-E coating.

    Solex PPGBody tinted/toned glass: Standard green float.

    Solexia PPGBody tinted/toned glass: Standard green float.Formerly known as Solex.

    SolTech ViridianLow-E coated glass.

    SolutiaInterlayer manufacturer for laminated glass.

    Sparkle PilkingtonPatterned glass.

    Spectrum SpectrumReflective vacuum coated monolithic and laminated glass.

    Spotswood PilkingtonPatterned glass.

    Squarelite PilkingtonWired glass.

    SS-Prefix for range of vacuum coated glass.

    SS08 GreyReflective observation or one way security laminated mirror.

    Staccato PilkingtonPatterned glass.

    Stadip St GobainClear and tinted laminated glass.

    Starphire Glass PPGLow-iron ultra clear glass.

    Sterling Azuria PPGPyrolytic coated reflective glass.

    Stopray GlaverbelReflective double glazed units.

    Stopray Natura GlaverbelLaminated low-E coated solar control glass.

    Stopsol Glaverbel/GlavermasPyrolytic coated reflective glass: Stopsol grey, bronze, dark blue and green in Classic and Supersilver range.

    StormGuard ViridianStorm and cyclone resistant glazing

    StormShield - GlasshapeStorm and cyclone resistant glazing

    Strata PilkingtonPatterned glass.

    Stratobel GlaverbelLaminated glass which can be made up as a reflective.

    Starelio St GobainPyrolytic coated reflective glass.

    SunClean PPGSelf cleaning glass.

    Suncool PilkingtonReflective vacuum coated monolithic and laminated glass.

    Suncool HP PilkingtonIGU using reflective vacuum coated monolithic and laminated glass.

    Suncut AsahiPyrolytic coated reflective glass.

    Sunergy AGCClear or neutral, green and blue tinted pyrolytic low-E coated glass.

    Sungate PPGPyrolytic and vacuum low-E coated glass.

    SunglasBody tinted/toned glass.Refer Visteon.

    SunGreen AsahimasBody tinted/toned glass: Darker and superior performer to normal green glass.

    Sun-Guard GuardianSolar control hi-performance coated glass.

    Sunlux AsahiReflective vacuum coated monolithic double glazed.

    SuperBlue ViridianBody tinted/toned glass: Blue float.See also Arctic Blue.

    SuperClear ViridianLow-iron ultra clear glass.

    SuperGreen ViridianBody tinted/toned glass: Darker and superior performer to normal green glass.See also Evergreen.

    SuperGrey PilkingtonBody tinted/toned glass: Deep grey float.

    Supersilver Dark Blue Glaverbel/GlavermasRefer Stopsol.

    Swissflam/Swissflam Lite St GobainHeat and fire resistant intumescent interlayered safety glass.

    Switchable glassElectrically controlled privacy glass switching from clear to opaque or transitional.

    T

    Tandarra PilkingtonPatterned glass.

    TE-Prefix for range of vacuum coated glass.

    TEC PilkingtonElectrical conducting glass.

    Texture PilkingtonRange of patterned glass.

    Thermotech ViridianInsulated glass units.

    ToughClad DMSCeramic based painted glass.

    Translucent LaminatedLight diffusing glass.

    TriplexOld terminology for laminated glass.

    TS-Prefix for range of vacuum coated glass.

    Tudor Qualage PilkingtonPatterned glass.

    Twin Glaze G.James GlassDouble glazed units.

    Twin-Kote PilkingtonMirror and safety mirror.

    U

    UltraWhite GuardianLow-iron ultra clear glass.

    V

    Vanceva SolutiaDecorative laminated glass make-ups.

    Vari-Tran SpectrumReflective vacuum coated monolithic glass.

    Venetian MirrorPrivacy mirror.

    Versalux VisteonBody tinted/toned and Pyrolytic coated reflective glass: Grey, green, bronze and blue float.

    Vetroflam St GobainHeat and fire resistant glass with special heat reflecting coating.

    VFloat ViridianClear float and body tinted/toned glass.

    Viracon ViraconReflective and/or low-E coated Glass: Vacuum coated monolithic and laminated glass.

    Viraspan ViraconCeramic based painted and opacifier filmed glass for spandrel glazing.

    Visteon See Versalux.

    VLam ViridianRange of various types of laminated glass.

    VLam Hush ViridianLaminated glass for noise reduction.

    Vycor Langson GlassHeat and fire resistant silicate based glass: Rated to 1200C.

    W

    White flashed opal glassLight diffusing glass.

    WindowClad PilkingtonGlass and fitting system.

    X

    XIR laminated film Southwall TechnologiesHigh performance laminated film for glass lamination.