CHAPTER 1: The Regulatory Environment Houses of Parliament Cape Town 1.1 The Constitutional Imperative 1.2 International Agreements on Climate Change 1.3 Political Decisions 1.4 Legislation and Regulation for Implementing Policy 1.5 Further Legislation, Regulation and Voluntary Processes towards the Greening of the Building Sector In this chapter the influence of the South African constitution, International Agreements and the gathering recognition among the general public that the current rate of generation of Greenhouse Gases is not sustainable, have given rise to the amendments to the National Building Regulation, herein outlined. KEY LEARNING 1. The Regulatory Environment is driven by the Constitutional imperative, International agreements and obligations, and the aspirations of the community to move towards a more sustainable future. 2. The publication of the Amended Regulations National Building Regulations and SANS10400XA is a milestone, in the progress of the building sector toward sustainability in South Africa.
CHAPTER 1.1: The Constitutional Imperative
CHAPTER 1.2: International Agreements on Climate Change
CHAPTER 1.3: The Political Decisions
CHAPTER 1.4: Legislation and Regulation for Implementing Policy
CHAPTER 1.5: Further Legislation, Regulation and Voluntary Processes towards the
Greening of the Building Sector
CHAPTER 2: The National Building Regulations Amendments Summarized conclusions and Key Learning
1. The amendments to the National Building Regulations require: (i) Reduced electrical resistance heating of hot water (ii) Reduced energy usage and demand for new and renovated buildings 2. The requisite level of energy efficiency may be demonstrated by three routes to compliance – all of which can be made use of by the Competent Person - Energy. 3. The Appointed Person will set out the means by which compliance with the regulations is intended to be demonstrated. 4. The compliance route available to the Appointed Person or his/her nominee without the requirement of an appointment as Competent Person, is set out in Regulation XA3(a). This route is loosely entitled the Prescriptive route because it follows a series of explicit rules or designs which are established in National Standards, all of which are “deemed-to-satisfy “the Regulations.
CHAPTER 2.1: National Building Regulations Amendments Summarized
CHAPTER 2.2: Implementation of Amendments
CHAPTER 2.3: SANS10400XA; Energy Usage in Buildings is Deemed-To-Satisfy the Regulations
CHAPTER 2.4: Three compliance routes which are deemed-to-satisfy:
CHAPTER 2.5: Rational Design Versus Deemed-To-Satisfy
CHAPTER 2.6: Definitions Supporting The Amended National Building Regulations
CHAPTER 2.7: Responsibilities Of Professionals
CHAPTER 3: Deemed - to - Satisfy Requirements as per SANS 10400 XA Energy Usage in Buildings
3.1 Definitions as per SANS 10400 XA, and the Regulations. 3.2 The regulatory requirements for Hot Water supply as per the Regulation XA2 and Section 4.1 of SANS 10400 XA. 3.3 The Deemed-to-Satisfy requirements for the Building envelope as per 4.2 with the three (3) different ways of satisfying the functional regulation XA1. 3.4 Energy Usage and Demand Performance method. 3.5 Building Envelope and Components route. 3.6 Reference Building Method. In the previous chapter, the wording of the Regulation XA3 (a), (b), and (c) is shown to be satisfied by that of SANS 10400 XA. This chapter summarizes these important principles and expands on these elements of SANS 10400 XA. The three available methods of compliance as per this Standard are detailed in this chapter. The chapter also refers to SANS 204 when there are sections of SANS 204 which are invoked by SANS 10400 XA.
CHAPTER 3.1: Definitions as per SANS10400XA, and the Regulations
CHAPTER 3.2:Regulatory Requirements for Hot water supply
CHAPTER 3.3: The Deemed - to- Satisfy Requirements for the Building Envelope as per 4.2 with the three (3) different ways of satisfy the functional Regulation XA3
CHAPTER 3.5: Building Envelope and Services Route
CHAPTER 3.6: Reference Building Route
CHAPTER 4: Prescriptive Requirements as per SANS 10400 XA
4.1 Building envelope requirements – Orientation and shading (SANS 204) 4.2 Building envelope requirements – Floors (4.4.2) 4.3 Building envelope requirements – Walls (4.4.3) 4.4 Building envelope requirements – Fenestration (4.4.4) and SANS 204 4.5 Building envelope requirements – Roofs and ceilings (4.4.5) 4.6 Building services requirements – Hot water (Regulation XA2) 4.7 Building services – Heating Cooling and Ventilation (SANS 204) 4.8 Building services – Lighting (SANS 204) This chapter summarizes the prescriptive provisions which are required to be implemented if paragraph 4.2.1 b) is to be followed by the Appointed Person. The provisions in this section are not relevant to the Performance route to compliance which may be followed by the Competent Person. This chapter will provide readers with an overview of the prescriptive requirements, which are detailed in subsequent chapters. The above references indicate that SANS 10400 XA is specific in regard to certain aspects of the buildings shell, but that the detailed Deemed-to-Satisfy requirements for Services, and in some situations the orientation and the fenestration, are to be found in SANS 204. Where SANS 204 is invoked by SANS 10400 XA then the provisions of SANS 204 are also deemed-to-satisfy the requirements.
Building Envelope The elements of a building that separate a habitable room from the exterior of a building or a garage or storage area; There is currently no content classified with this term. Orientation The direction a building envelope element faces, i.e. The direction of a vector perpendicular to and pointing away from the surface outside of the element. Additional Key Definitions as per SANS10400XA There is currently no content classified with this term.