The National Building The National Building RegulationsRegulations

&&SANS 10400

Hans SchefferlieExecutive Director23 August 2012

AAAMSA is representative on the following Building Industry Boards and Committees:

Master Builders South Africa (MBSA)Specialist Engineering Contract Committee (SECC)

Industry Boards and Committees:

p g g ( )South African Association of Energy Engineers (SAEE) A member of the SABS Review Board National Building Regulations.Chairman of the Thermal Insulation Association of Southern African (TIASA)Chairman of the Thermal Insulation Association of Southern African (TIASA)Secretary of the Specialist Engineering Contract Committee (SECC)Registrar of the South African Glass Institute (SAGI)g ( )Member of the Technical and CPAP Committees of the JBCCMember of the Contractual & Legal Committee (C & L) of MBSAMember of SANS TC59 Construction StandardsMember of SANS TC59 Construction StandardsChairman of SANS SC59C: Construction Standards – Glazing in BuildingsMember of SC59F: Construction Standard – Steel and Aluminium Structures Member of SC59G: Construction Standard – Energy Efficiency and Energy

use in the Built Environment.Member of SC21E: Fire SafetyMember of SC21E: Fire SafetyMember of TC1021: Expanded (Cellular) Plastics & Thermal InsulationMember of SC 60T: Fire Protection Standards

National Building Regulations and Building Standards Act 1977 Building Standards Act, 1977

(Act 103 of 1977)

National Building Regulations(Functional Regulation)(Functional Regulation)

AgrėmentDeemed-to-SatisfyRational Design AgrėmentDeemed-to-SatisfyRational Design

SANS 10400The Application of the

N i l B ildi National Building Regulation

Energy Usage

Integrated Resource Plan Integrated Resource Plan S t b S t b 20092009–– September September 20092009

Table 2 – South African generation capacity assumed for IRPp y

Integrated resource plan Integrated resource plan 2009 2009 (DME)(DME)g pg p ( )( )

DME research life cycle costing of SANS 204 interventions

In December 2007, DAH Joint Venture concluded their energy modeling, gy gresearch for the Department of Minerals and Energy to show how variousbuildings with SANS 204 specific energy efficiency interventionsperformed in different climate types This was published as; Report No –performed in different climate types. This was published as; Report No.OR-13554 Energy efficient homes and buildings; performance criteria forenergy efficient naturally ventilated buildings in South Africa.

The escalation rates for electricity costs provided in 2005 by NERSA,over the evaluation period, justified a level of 1.18% over the rate ofi fl ti (th i t 4 5%) It t d th th t 14 5%inflation (then running at 4.5%). It was reported then that a 14.5%increase was likely to be sanctioned by NERSA.

Over the past two years alone we have had increases in electricity tariffsto the effect of 25%.

Published August 2011

ScopeThis is part of SANS 10400 provides deemed-to-satisfy requirements for y qcompliance with Part XA (Energy usage in Buildings) of the National Building Regulations.

Invokes SANS 204In respect of Floors, Fenestration, Roof and Ceilings.g

SANS 10400-XA:2010 – Hot Water Heatingg

4.1.1 In order to comply with functional regulation XA2, contained inPart XA of the National Building Regulations, the followingguidance is provided;

a) The volume of the annual average hot water heating requirements shall be calculated in accordance with Tables 2 and 5 of SANS 10242-1:2004; and

b) If l t h ti t d th h ll b) If solar water heating systems are used, these shall comply with SANS 1307, SANS 10106, SANS 10254 and SANS 10252 1SANS 10252-1

4.1.2 Requirements for water installations in buildings be inq gaccordance with SANS 10252-1 and SANS 10254

SANS 10400-XA:2010 – Hot Water Heatingg

4.1.3 All hot water services pipes shall be clad with insulation with aminimum R-value in accordance with Table 1.

4 1 4 Thermal insulation if any shall be installed in accordance with4.1.4 Thermal insulation, if any, shall be installed in accordance withthe manufacturer’s instructions.

SANS 10400-XA:2010 – Energy Usagegy g4.2 Energy usage and building envelope

4.2.1 The functional regulations contained in Part XA of the National Building Regulations shall be deemed to be National Building Regulations shall be deemed to be satisfied where;

a) In any building of occupancy classified in terms of RegulationA20 as A1, A2, A3, A4, F1, G1, or H1, a Competent Person0 as , , 3, , , G , o , a Co pe e e socertifies that such building (excluding garage and storage areas)has a theoretical annual energy consumption and demand,based on the design assumptions contained in 4.3, less than orequal to the values specified in Tables 2 and 3; or

SANS 10400-XA:2010 – Energy Usagegy g

b) In any building of occupancy classified in terms of RegulationA20 as A1, A2, A3, A4, C1, C2, E1, E2, E3, E4, F1, F2, F3,G1, H1, H2, H3, H4 and H5, the orientation and shading arein accordance with the requirements of SANS 204, externalwalls are in accordance with the requirements of 4.4.3fenestration is in accordance with the requirements of 4.4.5,if in-slab heating is installed, it is in accordance with therequirements of 4.4.2, and service that use energy or controlthe use of energy, including heating, air conditioning andmechanical ventilation in accordance with SANS 204, andhot water systems in accordance with the requirements of 4.1(services exclude cooking facilities and portable appliances);or

SANS 10400-XA:2010 – Energy Usagegy g

) If b ildi f l ifi d i t f R l tic) If any building of occupancy classified in terms of RegulationA20 as A1, A2, A3, A4, C1, C2, E1, E2, E3, E4, F1, F2, F3,G1 H1 H2 H3 H4 d H5 C t t tifiG1, H1, H2, H3, H4 and H5, a Competent person certifiesthat such building (excluding garage and storage areas) has

th ti l l ti d d d la theoretical annual energy consumption and demand lessthan or equal to a reference building that complies with the

i t f 4 2 1(b)requirements of 4.2.1(b)

SANS 10400-XA:2010 - Energy Usage

SANS 10400-XA:2010 - Energy Usage

SANS 10400-XA:2010 4.4.2 Floors

Where an underfloor heating system (e.g. in-screed,underlaminate heating, undercarpet heating, undertile heating, cut-i d fl h ti d t b d d fl h ti ) iin underfloor heating, and water-based underfloor heating) isinstalled, the heating system shall be insulated underneath theslab with insulation that has a minimum R-value of not less then1.0.

SANS 10400-XA:2010

4 4 3 External walls4.4.3 External walls

4.4.3.1 Non-masonry walls shall achieve a minimum total R-value of

a) Climatic zones 1 and 6: 2.2b) Climatic zones 2, 3, 4 and 5: 1.9

SANS 10400-XA:2010

4 4 3 3 Th f ll i t f lli l ith th4.4.3.3 The following types of masonry walling comply with theR-value requirements:

a) Double-skin masonry with no cavity, plastered internally, orrendered externally; or

Note: The cavity and grouted cavity walling systems exceedthe minimum R-value of 0.35

b) Single-leaf masonry walls with a nominal wall thickness greaterthan or equal to 140mm (excluding plastering and rendering),plastered internally and rendered externallyplastered internally and rendered externally.

The requirements refer to the external walls of the habitable portions ofthe building fabric onlythe building fabric only.

SANS 10400-XA:2010 – Building Envelope requirementsSANS 10400 XA:2010 Building Envelope requirements

4.4.4 Fenestration

4 4 4 1 Buildings with up to 15% fenestration to nett floor area comply with4.4.4.1 Buildings with up to 15% fenestration to nett floor area comply withthe minimum energy performance requirements

4.4.4.2 Buildings with a fenestration to nett floor area per storey thatexceeds 15% shall comply with the requirements for fenestration inexceeds 15% shall comply with the requirements for fenestration inaccordance with SANS 204

4.4.4.3 The fenestration air infiltration shall be in accordance with SANS 613.

Published August 2011

ScopeThis Standard specifies the design requirements for Energy Efficiency in q gy ybuildings and of services in buildings with natural environmental control and artificial ventilation or air conditioning systems.

Invokes SANS 204In respect of Floors, Fenestration, Roof and Ceilings.g

SANS 204 - Tables for fenestration

Subsidized Housing g

Typical floor planyp p

Glazing calculations for compliance with Energy

1 Total sq m = 40 95m2 Net floor area = 35 295m2

Usage Legislation1. Total sq.m = 40,95m Net floor area = 35,295m2. Constants for Conductance and Solar Heat Gain

Climatic Zone 1Climatic Zone 1Conductance C1 = 1.2 Solar Heat Gain CSHGC = 0,15

3 Wi d T t l 3 96 3. Window area: Total = 3,96 sq.mNorth elevation = 2,16 m2 East elevation = 1,08m2

South elevation = 0 m2 West elevation = 0 72m2South elevation = 0 m2 West elevation = 0,72m2

Single glazing throughout. Default U = 7,9 SHGC = 0,814. No over hang – Solar exposure Factor E

North = 0,84 South = 0,87 East = 1,15 West = 1,40

Step 1: The aggregate conductance and aggregate solar heat gain of glazing must not exceed:glazing must not exceed:

Conductance = Net floor area x Cu = 35,295 x 1,2 = 42,354Solar Heat Gain = Net floor area x CSHGC = 35,295 x 0,15 = 5,29425Solar Heat Gain Net floor area x CSHGC 35,295 x 0,15 5,29425

Step 2: The aggregate conductance and SHG of glazing must be calculatedStep 2: The aggregate conductance and SHG of glazing must be calculated

Conductance – DefaultWindow area x U = 3 96 x 7 9 = 31 284 (Less than 42 354 in Step 1)

Solar Heat Gain – DefaultWindow area x SHGC x E

Window area x U 3,96 x 7,9 31,284 (Less than 42.354 in Step 1)

Window area x SHGC x ENorth – 2,16 x 0,81 x 0,84 = 1,47East – 1,08 x 0,81 x 1,15 = 1,01West – 0 72 x 0 81 x 1 40 = 0 82West 0,72 x 0,81 x 1,40 0,82

3,30 (Less than 5.294 in Step 1)

SANS 204:2011 – Building Sealingg g

4.4.1 Building Envelopeg p

Roofs, external walls, and floors that form the building envelope and anyi h i d d d i th t l f b i h ll bopening such as windows and doors in the external fabric shall be

constructed to minimize air leakage. The building sealing can be done byth d h lki ddi ki ti hit imethods such as caulking, or adding skirting, architraves or cornices.

4.4.2 Air infiltration and leakage4.4.2 Air infiltration and leakage

In climatic zones 1, 2, 4 and 6 the ceiling voids and attics shall be designed t i i i i i filt ti A di l ll l t d f j tiso as to minimize air infiltration. Accordingly, wall plate and roof junctions

shall be sealed. All tile roofs in these climatic zones shall be tile underlay ordi t b i d th j i t h ll b l d Th j i t i h t d fradiant barrier and the joints shall be sealed. The joints in sheeted roofs

shall be sealed.

SANS 204:2011 – Building Sealingg g

4.4.3 Permissible air leakage (AL)g ( )

4.4.3.1 Glazing and rooflights

4.4.3.1.1 Maximum permissible AL for openable glazing shall be 2.0ℓ/s.m2

with a pressure difference of 75Pa when tested in accordance withwith a pressure difference of 75Pa, when tested in accordance withSANS 613.

4 4 3 1 2 Maximum permissible AL for non-openable glazing shall4.4.3.1.2 Maximum permissible AL for non openable glazing shall0,31ℓ/s.m2 with a pressure difference of 75Pa, when tested inaccordance with SANS 613.

4.4.3.1.3 For glazed double action swing doors and revolving doors, themaximum permissible AL shall be 5.0ℓ/s.m2 with a pressuredifference of 75Pa, when tested in accordance with SANS 613.

Rotatable Guarded Hot Box (RGHB)

PTT Windows

Dimensions Width & Height

GlassThermal 

Transmittance(W/m2c)

Air Leakage Max2.0 ℓ/sec/m2

@ 75Pa

Steel

Height

1200 x 1500 4mm clear

(W/m c)

5 59

@ 75Pa

More than 5 787Steel

PVCu

1200 x 1500

1200 x 1500

4mm clear

4mm clear

5.59

4 95

More than 5.787

2 544PVCu

Timber

1200 x 1500

1200 x 1500

4mm clear

4mm clear

4.95

5 0

2.544

3 466Timber

Al i i

1200 x 1500

1200 1500

4mm clear

4 l

5.0

5 31

3.466

0 376Aluminium 1200 x 1500 4mm clear 5.31 0.376

Heat loss through Heat loss through 1215 1215 PTT windowsPTT windowsPressure difference = 75 Pa

SANS 204 SANS 204 Roof Insulation

SANS 204 – Roof Insulation

10400 Part Title Edition Published

A General Principles and requirements 3 Nov 2010

B Structural design 3 Sept 2012SANS 10400

i t f C Dimensions 3 Oct 2010

D Public Safety 3 Jan 2011

E Demolition Work 3 Nov 2010 (within A)

consists of the following

F Site Operations 3 May 2010

G Excavations 3 Jan 2011

H Foundations 3 Sept 2012

parts:J Floors 3 Oct 2010

K Walls 3 Mar 2011

L Roofs 3 Nov 2011

M St i 3 A 2011M Stairways 3 Apr 2011

N Glazing 3.1 Mar 2012 (3 Feb 2010)

O Lighting and Ventilation 3 Jan 2011

P Drainage 3 Oct 2010P Drainage 3 Oct 2010

Q Non-water-borne means of sanitary disposal 3 Mar 2011

R Storm water Disposal 3 Sept 2012

S Facilities for persons with disabilities 3 Apr 2011S Facilities for persons with disabilities 3 Apr 2011

T Fire Protection 3 Mar 2011

U Refusal Disposal 3 Nov 2010 (within A)

V Space heating 3 Jun 2010V Space heating 3 Jun 2010

W Fire Installation 3 Mar 2011

XA Energy Usage in Buildings 1 Aug 2011

SABS 0400:1990 SANS 10400 - New

Part B – Structural design 5½ pages Ed 3 – 35 pages

Part H - Foundations 2 pages DSS

Part J – Floors 2½ pages Ed 3 – 13 pages

Part K – Walls 8½ pages Ed 3 – 93 pages

Part L – Roofs 6 – pages Ed 3 – 55 pages

Part M – Stairways 3½ pages Ed 3 – 10 pages

Part N – Glazing 5 pages Ed 3.1 – 14 pages

SANS 10400-B

Requirements: General

The functional regulations pertaining to structural design contained inpart B of the National Building Regulations shall be deemed to be

ti fi d bj t t b ildi i d l it l d l i ith thsatisfied, subject to buildings in dolomite land complying with therequirements of 4.4, where the structural systems of the building:

a) Complies with the requirements of parts H, J, K, L, M and N ofSANS 10400 and, in the case of timber buildings, with therequirements of SANS 10082;q ;

b) Is the subject of a rational design or a rational assessmentprepared by a Competent Person (Structures) in accordance withthe requirements of 4 2;the requirements of 4.2;

c) Is the subject of an Agrément certificate in accordance with therequirements of 4.3; or

d) Is in accordance with a combination of (a) to (c) above.

SANS 10400: Part B

4.2 Rational design and rational assessmentg

4.2.1 General

4.2.1.1 The design working life of a building other than a category 1 buildingshall be not less than 30 years in respect of the structural system and non-shall be not less than 30 years in respect of the structural system and non-accessible components, and 15-years for repairable or replaceablecomponents and materials, such as claddings, roofing materials, exteriorp g gtrims, and integrated components, such as windows and doors. Category 1buildings may have a design life of not less than 10-years in respect of

i bl l bl t id d th t i i f di irepairable or replaceable components, provided that provision for upgrading ismade at the design stage of such upgrading does not require the removal ordismantling of the existing structure and does not require highly specializeddismantling of the existing structure and does not require highly specializedskills to be applied.

Published May 2010

Eff ti J 2010Effective June 2010

SANS 10160-3:2010 Edition 1

SANS 10160-3:2010 Edition 1

AAAMSA Practice Note AAAMSA Practice Note –– Wind Load (Feb ‘Wind Load (Feb ‘1111))AAAMSA Practice Note AAAMSA Practice Note Wind Load (Feb Wind Load (Feb 1111))Pursuant to our Cautionary Notice dated 1 September 2010 and subsequent to consultation with Dr Adam Goliger(CSIR) Dr Ron Watermeyer (Past Chairman SANS TC59) and Neil MacLeod (Pure Consulting) we advise as follows:(CSIR), Dr Ron Watermeyer (Past Chairman SANS TC59) and Neil MacLeod (Pure Consulting) we advise as follows:

Performance Category A0 is no longer applicable to external fenestration and is withdrawn with immediate effect.

This is a consequence of the publication of SANS 10160-3:2010 Edition 1 in May 2010 which changed the method ofThis is a consequence of the publication of SANS 10160-3:2010 Edition 1 in May 2010 which changed the method ofdetermining wind load on fenestration (amongst other)

All Test Performance Certificates for Category A0 products are hereby withdrawn and will not be included inmatrixes after March 2011 Members having such certificates are urged to re-test their A0 products to A1 or highermatrixes after March 2011. Members having such certificates are urged to re-test their A0 products to A1 or higherrequirements.

A number of members have only Test Performance Certificates for Category A0 products and will no longer featurein the Matrixes published after March 2011in the Matrixes published after March 2011.

The members concerned have until September 2011 to test products to A1 or higher category failing which theirmembership will lapse. (AAAMSA National Executive Committee 26/1/2011)Suppliers of Architectural Aluminium Systems holding Performance Compliance Reports for Category A0 productsSuppliers of Architectural Aluminium Systems holding Performance Compliance Reports for Category A0 productsare likewise advised that these reports are hereby withdrawn.

In terms of the National Building Regulations the wind load must be determined by a Competent Person(Structures) based on SANS 10160 In view of this members must obtain wind load in ALL instances from a(Structures) based on SANS 10160. In view of this members must obtain wind load in ALL instances from aCompetent Person (Structures). Members should not determine the wind load under any circumstances.

Published March 2012Published March 2012

Wind load resistance and water penetration.

N1 Type and Fixing of Glazing

(1) Any material used in the glazing of any building shall be of a secure anddurable type and shall be fixed in a manner and position that will ensuredurable type and shall be fixed in a manner and position that will ensurethat it will-

a) Safely sustain any wind action which can reasonably be expected;

b) N t ll t ti f t t th i t i f th b ildi db) Not allow penetration of water to the interior of the building; and

c) Be apparent in the case of clear glazing to any person approachingc) Be apparent, in the case of clear glazing, to any person approachingsuch glazing;

N1 Type and Fixing of Glazing(2) Glass plastics and organic coated glass shall be selected in order to(2) Glass, plastics and organic coated glass shall be selected in order to

provide, in the case of human impact, a degree of safety appropriate inrelation to-relation to

(a) The position of the glazed area; and

(b) The number and likely behaviour pattern of persons expected to be inclose proximity of such glazed area;

(3) The requirements of sub-regulations (1) and (2) shall be deemed to besatisfied where the glazing material is selected, fixed and markedg gin accordance with SANS 10400-N

SANS 10400 – Part NSANS 10400 – Part N

4.2.2. FRAMING (irrespective of material type)

Glazing shall comply with all the requirements of SANS 613 for the wind and impact loads as determined in accordance with the requirements of SANS 10400-B by a Competent Person (Structures).

Obtain AAAMSA Performance Test Certificate to confirm compliance with SANS 613.

N t Mi i i d l d E t l li ti 1000P (A1)Note: Minimum wind load: External application - 1000Pa (A1)Internal application - 600Pa

Published Standard

ScopeThis part of SANS 10400 provides deemed-to-

satisfy requirements for compliance with P t T (Fi P t ti ) f th N ti l Part T (Fire Protection) of the National Building Regulations.

Note: Part T of the National Building Regulations, issued in terms of the N ti l B ildi R l ti d National Building Regulations and Building Standards Act, 1977 (Act N0o. 103 of 1977), is reproduced in Annex A.

Published Standard

ScopeThis standard covers the classification, usage

and application requirements for under-f d id l ddi i l ti roof and side-cladding insulating

materials, liners, insulated wall and roof panels, insulated ceilings and insulated wall and ceiling coating systems for use wall and ceiling coating systems for use in buildings of unlimited height when exposed to an ignition source.

It d t fi i t ti fIt does not cover fire resistance properties ofproducts.

Note: Fire resistance properties are coveredNote: Fire resistance properties are coveredin SANS 10177-2

SANS 428:2012Edition 2

Table A4 – Limitations on the use of materialsOccupancy

ClassOccupancy Single and

double storey

Table A4 – Limitations on the use of materialsOccupancy

ClassOccupancy Single and

double storeyClass double storeybuildingsRequired

classification

Class double storeybuildingsRequired

classification

A1 Entertainment and public assembly 1

A2 Theatrical and indoor sport 2

A3 Places of instruction 2

A4 W hi 2

E1 Place of detention 1

E2 Hospital 1

E3 Other institutional (residential) 1A4 Worship 2

A5 Outdoor sport 4

B1 High risk commercial services 2

B2 M d t i k i l i 2

E4 Health care 2

F1 Large shop 3

F2 Small shop 3B2 Moderate risk commercial service 2

B3 Low risk commercial service 3

C1 Exhibition hall 2

C2 M 2

F3 Wholesalers’ store 3

G1 Offices 3

H1 Hotel 1C2 Museum 2

D1 High risk industrial 2

D2 Moderate risk industrial 2

D3 L i k i d t i l 3

H2 Dormitory 1

H3 Domestic residence 3

H4 Dwelling houses 3D3 Low risk industrial 3

D4 Plant Room 1

E1 Place of detention 1

E2 H it l 1

H4 Dwelling houses 3

J1 High risk storage 2

J2 Moderate risk storage 2

J3 Low risk storage 3E2 Hospital 1

E3 Other institutional (residential) 1

E4 Health care 2

J3 Low risk storage 3

J4 Parking garage 4

SANS 10400-T:2011Edition 3

4.9 Partition walls and partitions

4.9.1 Any partition or partition wall in any occupancyy p p y p y

a) Shall have a nominal fire resistance of not less than 30 min and be non-combustible, ornon combustible, or

b) Where combustible materials are present, shall not contribute a fire load of more than 5kg/m2 of floor area in a divisionfire load of more than 5kg/m of floor area in a division

Provided that wall finishes comply with the requirements of 4.15

Plasterboard partition from 3600 to 8000mmfrom 3600 to 8000mm 

in height

Plasterboard partition over 8000mm inover 8000mm in 

height

Plasterboard partition up to 4200mm inup to 4200mm in 

height

At plan approval stage:Obtain copy of AAAMSA Performance Compliance Report from the Aluminium System Suppliers orObtain copy of AAAMSA Performance Compliance Report from the Aluminium System Suppliers or

Obtain a copy of the appropriate AAAMSA Performance Test Certificate from the

Prior commencement of any site work:

Manufacturer/Specialist Contractor supplying/installing the Glazed Architectural Products.

1) Obtain a copy of the appropriate AAAMSA Performance Test Certificate from theManufacturer/Specialist Contractor supplying / installing the Architectural Aluminium Products

2) Obtain a full set of detailed manufacturing drawings / manuals relevant to the installed products

Upon completion of all site work (at handover) obtain the following Certificates:a) AAAMSA Performance Test Certificateb) AAAMSA or SAGGA Glass & Glazing Certificatec) AAAMSA Surface Finishing Certificated) AAAMSA or SASA Skylight System Certificate) y g ye) AAAMSA Architectural Product Certificatef) SAFIERA Energy Rating Certificate

Questions & Answers