Development Management Department 1 of 49 ENERGY EFFICIENCY NATIONAL BUILDING REGULATIONS

Development Management Department1 of 49

ENERGY EFFICIENCYNATIONAL BUILDING REGULATIONS


BACKGROUND

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National Energy Efficiency Strategyof the Republic of South Africa

March 2005( Reviewed 2008 / 2011 )

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OBJECTIVES

● Develop and implement energy efficiency practices in SA

● Contribute to affordable energy for all

● Minimise the negative effects of energy usage upon● human health and the environment

● Set a national target for energy efficiency improvement● [ 12% by 2015 ]

● Cover all energy-using sectors

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ACHIEVED THROUGH

● Economic and legislative means

● Efficiency labelling

● Performance standards

● Energy management

● Energy auditing

● Promote efficiency practices

National Building Regulationsand

Building Standards Act(Act No. 103 of 1977)

SANS 10400-XASANS 204

SANS 10252EE

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ENERGY USAGE SECTORS

● Industry and Mining

● Commercial and Public Buildings

● Residential

● TransportEE

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National Building Regulationsand

Building Standards ActNo. 103 of 1977

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09 November 2011

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Part X: Environmental sustainability

XA: Energy usage in buildings

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XA: Energy usage in buildings

XA1 ● To contribute to the reduction of greenhouse gases

– buildings, and– extensions to buildings

of occupancy classifications...EE

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● A1 - Entertainment and public assembly● A2 - Theatrical and indoor sport● A3 - Places of instruction● A4 - Worship● C1 - Exhibition hall● C2 - Museum● E1 - Place of detention● E2 - Hospital● E3 - Other institutional (residential)● E4 - Health care● F1 - Large shop● F2 - Small shop● F3 - Wholesaler's store● G1 - Offices● H1 - Hotel● H2 - Dormitory● H3 - Domestic residence● H4 - Dwelling house● H5 - Hospitality

excluding:garage and storage areas containedwithin such occupancies

Not covered by NBR Part XA5 - Outdoor sportB1 - High risk commercial serviceB2 - Moderate risk commercial serviceB3 - Low risk commercial serviceD1 - High risk industrialD2 - Moderate risk industrialD3 - Low risk industrialD4 - Plant room

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shall be designed and constructed so that they...

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(a)● use energy efficiently in relation to:

– vertical transport;– thermal comfort;– lighting; and– hot water; or...E

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(b) ● have:

– building envelope; and– services

which facilitate efficient use of energy appropriate to their:

● function and use,● internal environment; and● geographical location.

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13 Climatic Zones


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8 Climatic Zones


Equipment and plant for conducting business – excluded.

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XA2 ● At least 50% annual average hot water heating shall be:

– by means other than electrical resistance heating● including but not limited to:

– solar heating;– heat pumps;– heat recovery systems / processes; and– renewable combustible fuel.

(volume fraction)calculated in accordance with SANS 10252-1

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XA3 ● XA1 shall be deemed satisfied when:

– building is:● designed; and● constructed

in accordance with -EE

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(a) ● SANS 10400-XA requirements for:

– orientation;– shading;– services; and– building envelope; or...

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(b) ● rational design prepared by competent person:

– which demonstrates that energy usage of building is:● equivalent to; or● better than;

that which would be achieved by compliance with

SANS 10400 XA, or...

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(c) ● theoretical energy usage performance,

– less than; or– equal to;

a reference building in compliance with SANS 10400-XA :( using certified thermal calculation software )

certified thermal calculation softwaresoftware certified by Agrément SA,in terms of Agrément SA Energy Software Protocols

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- BSIMAC (Version 9) Building Energy Analysis Software- DesignBuilder (Version 3.1) Building Energy Analysis Software- IES Virtual Environment Software (Version VE 2013)- StarFront Software for designing compliant aluminium windows and doors


SANS 10400-XA

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(a) Functional regulations of part XA of NBR satisfied where:

● competent person certifies building as having:

– theoretical annual energy consumption; and– theoretical annual energy demand

less than or equal to collected data tabled

● A1, A2, A3, A4, F1, G1, or H1,

● (excluding garage and storage areas), or...

A1 - Entertainment and public assemblyA2 - Theatrical and indoor sportA3 - Places of instructionA4 – WorshipF1 - Large shopG1 – OfficesH1 - Hotel

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(b) Functional regulations of part XA of NBR satisfied where:

● building:

– orientation;– shading;– external walls;– fenestration;– roof assembly construction;– in-slab heating installation;– services that use energy or control the use of energy:

● heating, air conditioning and mechanical ventilation;– hot water system

is in accordance with requirements of SANS XA & 204

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● A1 - Entertainment and public assembly● A2 - Theatrical and indoor sport● A3 - Places of instruction● A4 - Worship● C1 - Exhibition hall● C2 - Museum● E1 - Place of detention● E2 - Hospital● E3 - Other institutional (residential)● E4 - Health care● F1 - Large shop● F2 - Small shop● F3 - Wholesaler's store● G1 - Offices● H1 - Hotel● H2 - Dormitory● H3 - Domestic residence● H4 - Dwelling house● H5 - Hospitality

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(c) Functional regulations of part XA of NBR satisfied where:

● competent person certifies building as having:

– theoretical annual energy consumption; and– theoretical annual energy demand

less than or equal to reference building complying with (b)EE

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RESPONSIBILITYfor

DESIGN ACHIEVING COMPLIANCE ?

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LOCAL AUTHORITY

WHY ??


AZ4 Complying with the requirements of the National Building Regulations

(1) National Building Regulations shall be complied with by:

(a) adhering to all prescriptive regulations; and

(b) satisfying all functional regulations by:

(i) adopting solutions that comply with SANS 10400; or

(ii) rational design / assessment having equivalent / superior performance to solution complying with

SANS 10400.

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PART A - ADMINISTRATION

A1 APPLICATION

(1) Designing, planning and the supervision of the erection of any

building or structure...

...is subject to the provisions of any law in terms of which the

person undertaking such work...

...is required to be registered in terms of the Architectural Profession Act, 2000, Engineering Profession Act, 2000,…, or any other relevant Act.

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A2 PLANS AND PARTICULARS TO BE FURNISHED

(1) Any person intending to erect any building shall submit to the

local authority the following plans and particulars, together with the application:...

(g) a declaration by a person registered in a professional

category of registration...

...in Form 1 contained in SANS 10400-A as to how the applicable functional regulations shall be satisfied;

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DECLARATION FORM

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Identify the applicability of theRegulation i.t.o the proposal.Do NOT leave blank or tick both.

FORM 1

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FORM 1

Competent person is as defined in the relatedSANS 10400 code and are function specific.

Name of person to be appointed to be identified,not name of business representing

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FORM 2

Owner and competent person both initial confirmingthe work the competent person is responsible for andfor which certification will be required on completionof the building.Such being necessary prior to applyingfor a Certificate of Occupation from the local authority.

The applicable duty is determined by thatidentified in Schedule B of Form 1.

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The acceptance of a competent person by a localauthority is application specific and forms part of theapproval of an application.

FORM 2

Aspects the local authority must considerwhen considering the acceptability of acompetent person i.t.o the work for whichappointed

Acceptability or Not of competent personto be endorsed by the local authority onconsideration of the application

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Competent person to identify the aspect/sfor which the “Certificate of Completion” is

being issued

Certificate of Completion is issued i.t.o an “APPROVAL”granted by the local authority.Certificate of Completion cannot be issued i.t.o work forwhich no approval has been granted or which deviatesfrom an approval granted (unauthorised work ?)

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RESPONSIBILITYfor

DESIGN ACHIEVING COMPLIANCE ?

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APPOINTEDREGISTERED PROFESSIONAL

ORCOMPETENT PERSON


VARIANCE FROM APPROVAL

IMPLICATIONS

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BUILDING APPLICATION APPROVAL

● Based on:

– Application & supporting documentation;– Declaration by Appointed Registered Professional;– Building Plans – NBR complianceE

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DEVIATION FROM APPROVAL

● Results in:

– Building Plan approval no longer being valid;– Declaration by Registered Professional being voided;– NBR compliance may no longer be possible.

Minor changes may have major impact onEnergy Efficiency compliance achieved byoriginal design solution

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Requirement for Water Layouts

SANS 10252-1

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Water Services ActNo. 108 of 1997

Regulations Relating to Compulsory National Standards and Measures to Conserve Water

R 509 of 8 June 2001EE

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Consumer installations other than meters

14. Every consumer installation must comply with - SABS 0252: Water Supply and Drainage for Buildings and

- SABS 0254: The Installation of Fixed Electric Storage Water Heating Systems, or

any similar substituting re-enactment or amendment thereof if the consumer installation is of a type regulated by either standard.

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Read as:SANS 10252 – 1 & 2 and SANS 10254


SANS 10400-XA

4.1.1To comply with regulation XA2 :(a) volume of annual average hot water heating requirements shall be calculated i.t.o tables 2 and 5 of SANS 10252-1; and

(b) if solar water heating systems are used, these shall comply with SANS 1307, SANS 10106, SANS 10254 and SANS 10252-1.

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QUESTIONS ??

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Documents

Development Management Department 1 of 49 ENERGY EFFICIENCY NATIONAL BUILDING REGULATIONS