Welcome

Content

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05

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08

09

Introduction

Our History

Management

Our Mission

Associations

Accreditations

Glass Products

How Glass Is Made

Glass Processing

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Product Range

Laminated Safety

Tinted PVB Laminates

SolarVue

SolarShield

Low E

Acoustic

Toughened

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19

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21

22

Obscure

Mirror

Bullet Resistant

Fire Rated

Double Glazing

Na�onal Glass Distribu�on led by CEO/Founder Anthony Adler since 1995.

With a culture of quality at its heart it is driven by an energe�c and dynamic management team led by daughter Belinda Louw, fellow directors Francois Viljoen , Gary Mar�n and Na�onal Managers Nic Kruger and Alwyn Gouws.

A team of in-house industry professionals made up of SAFIERA accredited simulators and SAGI Competent Persons provide expert advice from ini�al design to final delivery.

Na�onal Glass Distribu�on has warehouses and manufacturing facili�es na�on wide involving:

• Distribu�on & processing of float, mirror, architectural performance,

• Eagle Aluminium forms part of the Na�onal Glass product mix which

• Sole rights to distribute Eagle Aluminium Processing, Deway Glass

insulated energy efficient, SABS cer�fied toughened & laminated safety glass.

offers an extensive selec�on of residen�al and commercial windows, doors, showers and Eco-Fly Screens.

Processing and Waterjet SA Cu�ng machinery.

Of

In the year...

The Company with a culture of quality at its heart is driven by an energetic and dynamic

management team led by:Management

Anthony AdlerFounder

Belinda LouwExecutive Director

Francois ViljoenExecutive Director

Gary MartinExecutive Director

Nic KrugerNational Sales &

Marketing Manager

Alwyn GouwsNational Operations

Manager

• Integrity• Respect• Honesty• Transparency

People

We are an innovative and dynamic Glass and Aluminium company that strives to offer a complete

product range at market related prices, and to be a supplier of choice by delivering the highest

quality products on time, every time.

Our main objective is to continuously implement best business practices and show sustainable

growth with and through our clients.

• Innova�ve• Industry leader• High quality• Compe��ve prices

• Environmentally friendly• Risk adverse• Company owned premises• Strong financial management

• Reliable and measurable• Pre and post sales service • Company owned vehicle fleet• Technologically proficient

• Industry associa�ons• Strong supplier agreements• Long-term customer rela�onships

Product Enterprise Sustainability

Service

Partnerships

Mission

Value Proposition

Associations

+27 (0)83 225 9924 | nkruger@natglass.co.za| www.natglass.co.za

Accreditations

Nic KrugerCompetent Person (Glazing) Cat 1

Nic Kruger, Na�onal Sales & Marke�ng Manager, has been awarded Competent Person Glazing (Cat 1) status by the South African Glass Ins�tute.

He joins an elite group of industry leaders, being only the 2nd person to achieve this in 12 years.

Competent Persons Glazing (Cat 2) may deviate from deemed-to-sa�sfy tables found in SANS 10400-N; using a ra�onal design based on the relevant tables found in SANS 10137; provided it is co-signed by a Competent Person Glazing (Cat 1) and a wind load has been specified by a qualified person.

A special applica�on of glass such as, but not limited to, underwater viewing panels, glass floors, glass balustrades, stair treads, frameless entrances and bolted assemblies require the wri�en approval of a Competent Person Glazing (Cat 1). Such wri�en approval shall be included with the glazing cer�ficate issued to the building inspector for the relevant contract.

Na�onal Glass has built a formidable advisory of SAGI graduates comprising of a Competent Person Glazing (Cat 1) and numerous (Cat 2) as well as a team of qualified SAFIERA thermal simulators.

They are able to assist in op�mizing your glass and aluminium requirements to achieve the most cost effec�ve solu�ons.

Nic KrugerMSAGI - CPG1

1 of 9 in South Africa

SAFIERA accredited simulators:

Francois Viljoen

Nic Kruger

Damien Goodrum

Dave Vermaak

MSAGI (Cat 1) graduate:

Nic Kruger

MSAGI (Cat 2) graduates:

Francois Viljoen

Belinda Louw

Gary Mar�n

Nic Kruger

Alwyn Gouws

Coenie Louw

Dave Vermaak

Damien Goodrum

Toughened Safety

Insulated

Float

Laminated Safety

Mirrors

Obscure

Bullet Resistant

Glass Processing

Float glass can be processed on CNC and waterjet machines. It can also be drilled or have cut-outs inserted before the panes are toughened. The edges of float glass can be arrised, dull machine pol i shed, sh ine pol i shed or bevelled to achieve the desired edge finish.

Obscure glass is textured glass designed to separate spaces and “obscure” visibility between the spaces. Such glass is used to provide privacy while s�ll allowing light to flow into a space, and is o�en found in homes and offices.

Toughened glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. Tempering puts t h e o u t e r s u r f a c e s i n t o co m p re s s i o n a n d t h e i n n e r surfaces into tension.

Laminated glass is a type of safety glass that holds together when sha�ered. In the event of breaking, it is held in place by an interlayer, typically of polyvinyl butyral (PVB) or ethylene-vinyl acetate (EVA), between its two or more layers of glass.

Bullet-resistant glass is a type of strong but op�cally transparent mater ia l that is par�cular ly resistant to being penetrated when struck. Like any material, however, t h e y a r e n o t c o m p l e t e l y impenetrable.

Insulated glass is the combina�on of two or more panes of glass sealed with air, or inert gas b e t w e e n t h e p a n e s . T h e construc�on of an insulated unit is designed to help control energy transfer from outside to inside or vice versa.

To produce mirrored glass, a metal coa�ng is applied to one side of the glass. The coa�ng is generally made of silver, aluminium, gold or chrome. For simple mirrored glass, a fully reflec�ve metal coa�ng is applied and then sealed with a protec�ve layer. To produce "one-way" mirrors, a much thinner metal coa�ng is used, with no addi�onal sealing or otherwise opaque layer.

Float glass is a sheet of glass made by floa�ng molten glass on a bed of molten metal , typical ly �n, although lead and various low mel�ng point alloys were used in the past. This method gives the sheet uniform thickness and very flat surfaces. Modern windows are made from float glass.

Architectural

Architectural glass is glass that is used in the building envelope where be�er energy efficient glazing solu�ons are required. It offers be�er solar proper�es, by reducing either the solar heat gain co-efficient or u-value, and in some products in both. These products are o�en accompanied by a �nted appearance, thus enhancing the architectural feature of the façade.

Glass Products

How is glass made? By mixing raw materials such as sand, limestone, soda, dolomite, feldspar and salt cake, then

heating them together at a temperature of over 1500°C.

When the materials are melted, they form a viscous liquid. As this melt cools, the viscosity

increases until the glass becomes hard. If the liquid cools to quickly, the glass does not have

time to release stresses. This process is done by heat treatment and called annealing.

Silica Sand

SodaAsh

Lime-Stone

Silica sand is the main raw material in glass, but very high temperatures are required to melt it.

Soda ash, a fluxing agent, plays a vital role by reducing the furnace temperature necessary to melt silica used, thus reducing the energy required to produce glass.

Limestone, a stabiliser, is thus added to the silica and soda ash. Cullet (scrap glass) is also added to assist the mel�ng process.

1 12 3 4 5 6 7 8

Float Line Process

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3

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8

2

Raw material feed

Mel�ng furnace

Float bath

Cooling lehr (coa�ng chamber)

Con�nuous ribbon of glass

Cross cu�ers

Large plate li�-off devices

Small plate li�-off devices

Chemical Composition

of Glass

72%

7.5%

0.25%

0.5%

14.5%

2.5%0.75%

0.075%

72%

0.75%

2.5%

14.5%

0.5%

0.25%

7.5%

0.075%

Silica (SiO2)

Iron Oxide (Fe2O3)

Alumina (AL2O3)

Magnesium Oxide

Sodium Oxide

Potasium Oxide

Sulphur Trioxide

Calcium Oxide (CaO)

Glass Processing

Cutting

Arris &Polish

Beveling

The glass cu�ng process involves making a score in the glass surface with a diamond

or special tungsten carbide cu�ng wheel and then running or snapping the cut to

break the glass at the score line. The score line can be straight or shaped to follow a

template.

A smooth arris edge is produced with a smoothline edging machine, with just the

wheels turning, wet-stone or belt.

Whilst polishing is done with the same machine, but produces a fine polished flat

edge, suitable for when glass has exposed edges.

Beveling adds a beau�ful and decora�ve touch to mirrors, table tops, glass door

panels and furtniture glass and is available on glass thicknesses 4-19mm in a variety

of bevel widths and on annealed or toughened glass.

Product Range

• Laminated Safety

• Tinted PVB Laminates

• SolarVue™

• SolarVue™ Low E

• SolarShield

• Low E

• Acous�c

• Toughened

• Obscure

• Mirror

• Bullet Resistant (BRG)

• Fire Rated

• Double Glazing - SIG Units

Laminated Safety Laminated Safety glass is manufactured by permanently bonding one ore more polyvinyl

butyral (PVB) interlayers between 2 sheets of clear, coated or body tinted float glass under

heat and pressure.

Laminated glass can incorporate various combinations of clear and tinted glass,

transparent or coloured interlayers, as well s a range of high performance coatings.

Benefits of Laminated Safety Glass

Ÿ Penetration Resistance More difficult for criminals to break through

Ÿ Safety Glass Shards of glass are held together by the interlayer

Ÿ Sound Control Reduces transmission of sound

Ÿ Solar Energy Performance Reduce the harsh effects of glare and solar radiation

Ÿ UV Protection Prevents fading of furniture and fabrics

Tinted PVB

Laminates

Tinted PVB Laminates are made from various combinations of clear and tinted glass with

tinted PVB interlayers.

Available in a wide range of colours, to meet a variety of aesthetic requirements, glare

reduction and solar control demands. Tinted interlayers can be used individually or in

various combinations to create colourful and distinctive glass facades, partitions and

interiors.

Benefits of Tinted Laminates

Ÿ Reduces damaging short-wave ultraviolet radiation

Ÿ Offers additional safety, security and noise control benefits

Ÿ The lighter tints eliminate some solar energy and are intended for use in glazing areas where safety, glare control and aesthetic qualities are required

Ÿ The deeper tints improve glare control and provide a higher degree of solar heat elimination

Solarshield Solarshield is made up from a piece of clear or tinted glass, clear or tinted PVB interlayer

and a piece of clear glass that has a metal coating applied onto one side. It is able to block

up to 99% of damaging UV radiation.

Ÿ Available in a range of colours and 3 densities of coating (S10/S20/S30)

Ÿ The metal coating used is a thin deposit of nickel and chromium

Ÿ The numbers S10/S20/S30 refer to the light transmission of the coating, which is directly proportional to the amount of solar heat entering the building.

Ÿ It is a sided product, it’s appearance will vary when viewed from different sides

Ÿ Care must be exercised when cutting and glazing to ensure a uniform appearance

Ÿ Coating must face towards the sun

SolarVue SolarVue provides medium solar control and a neutral, low reflective appearance in a

range of colours. A thin deposit of nickel and chromium eliminates more than 55% of solar

heat, while transmitting more than 45% of visible light. It also eliminates more than 99% of

damaging UV radiation.

Ÿ Provides medium solar control and a neutral, low reflective appearance in a range of colours

Ÿ The metal coating used is a thin deposit of nickel and chromium

Ÿ This eliminates more than 55% of solar energy, while allowing more than 45% of visible light to be transmitted throughout

Ÿ Eliminates more than 99% of damaging UV radiation

Ÿ This is a “sided” product, meaning that it’s appearance will vary when viewed from different sides.

Ÿ Stock sheets are labelled by the factory to indicate the coated side

Low E Low E Glass has a Pyrolitic hard coat. The metallic coating is embedded into the glass

during the molten stage of manufacturing. The coating becomes integral in the glass, it is

clear and invisible. You can have clear glass with a hard coating.

Ÿ A Low E coating increases the thermal insulation properties of glass. A drop in heat loss by 40%

Ÿ Reduce heating and air-conditioning costs by keeping more heat in during winter and blocking out during summer

Ÿ For ultimate insulating performance, Low E glass can be used in double glazed units

Ÿ Low E glass can be toughened, annealed or laminated

Acoustic LaminatedAcoustic Laminated safety glass is manufactured with a special vinyl interlayer that offers

better sound control than traditional polyvinyl butyral (PVB) interlayers.

The hardness of the glass and the softness of the vinyl acts to improve the sound

reduction.

Conventional laminated glass with a single normal strength (NS) vinyl interlayer is rated at

33dB.

Ÿ A high penetration resistant (HPR) inerlayer can improve the rating to 34dB

Ÿ Acoustic laminated with a 0.76mm HPR interlayer is rated at 36dB and provides a noticeable improvement in sound reduction

Ÿ Acoustic laminates also work better at lower temperatures because the Acoustic interlayer retains its sound reducing properties better than traditional PVB interlayers.

Ÿ In addition to a weighted sound reduction index, Acoustic laminates offer superior dampening across the coincidence dip - a frequency range in which glass of a specific thickness typically becomes more transparent to sound waves.

Toughened Safety Toughened Safety glass is a type of safety glass processed by controlled thermal or

chemical treatments to increase its strength compared to normal glass. Tempering puts

the outer surfaces into compression and the inner services into tension.

Such stresses cause the glass, when broken, to crumble into small granular chunks instead

of splintering into jagged shards. The granular chunks are less likely to cause injury.

Ÿ Ideal for bolted structural glazing and frameless applications

Ÿ Superb resistance to thermal stress also allows toughened safety glass to be used in applications such as refrigerator and oven doors, where ordinary annealed glass would be likely to fracture

Ÿ Available in a range of thicknesses and various colours

Ÿ Up to 5 times stronger than normal monolithic float glass

Obscure Obscured glass is any type of rolled glass that has a pattern embedded into its surface.

Obscured patterned glass obscures a view without noticeable loss of natural or artificial

light.

Ÿ Available in a range of textures, making it possible to achieve the desired functionality with a decorative effect that complements the aesthetic environment

Ÿ 3 Levels of privacy available:

A - L o w o b s c u r i t yB - Medium obscurityC - High obscurity

Mirror Mirrors are manufactured by applying reflective coating to a suitable substrate. National

Glass Distribution offers copper-backed mirrors which are in line with global best

practices.

These mirrors have slightly thicker layers of silver and copper to improve the reflectivity, as

well as three layers of special paint to provide protection against the elements.

Ÿ Long lasting tarnish resistance

Ÿ Comply with the international standard DIN EN 1036

Ÿ Available in a variety of sizes and thicknesses

Ÿ Edges may be bevelled and polished to alleviate sharp corners and enhance aesthetics

Ÿ Care needs to be taken with the installation of mirrors

Bullet Resistant Bullet Resistant glass is a term for glass that is particularly resistant to being penetrated

when struck by bullets.

The glass is usually constructed by using layers of laminated glass. The desired result is a

material with an appearance and light transmitting behaviour of standard glass but offers

varying degrees of protection.

Ÿ The use of interlayers provides impact resistance, such as physical assault with a

hammer, an axe, etc. The interlayer provides little resistance in the way of bullet

resistance.

Ÿ The glass, which is much harder than the interlayer, flattens the bullet and thereby

prevents penetration.

Ÿ This type of bullet resistant glass is usually 28-78mm thick

Fire Rated Fire Rated glass is tempered glass manufactured in various shapes and sizes and is used as

a medium to retain and direct heat, meaning the glazing defends against the spread of

flames and smoke.

Georgian Wired glass is suitable for the use in fire and non-fire applications.

Georgian Wired Cast (Obscure) and Georgian Wired Plate (Clear) both have a 30 Min fire

rating.

Ÿ Should a safety glass application be required, it is possible to laminate the Georgian Wired Plate to a 3mm Clear resulting in a 9.76mm Georgian Wired Plate laminated glass meeting the requirements of SANS 1263-1

Ÿ For a 2 hour fire rating, Pyron S Borosilicate glass is available in a 6mm thickness. This can also be toughened for safety glass applications

Ÿ It is vital to ensure the framework also has the same fire rating as the glass

WireCast

WirePlate

Double Glazing

SIG Units

Sealed Insulated Glass Units (SIG’s) are manufactured from two or more panes of glass

held apart by a spacer and bonded with a hermetic seal, trapping dehydrated air between

the glass panes.

Their primary function is to improve thermal insulating properties of a glazing product, as

well as contribute to safety, security and acoustics.

The appearance and performance of the SIG Units can be modified by incorporating

different glass types and thicknesses and altering the width of the spacer bar.

Benefits and functions of SIG Units include:

Ÿ Improved sound reduction

Ÿ Improved security

Ÿ Improved resistance to wind-loads

Ÿ Improved thermal insulation

Ÿ Improved solar energy control

Ÿ Minimized condensation