New Regulations for Energy Usage in Buildings

The Department of Trade and Industry has published an amendment to the National Building Regulations on 9 September 2011 to introduce requirements for energy usage in buildings. All new buildings and extensions have to comply with the new Regulation.

The Regulations “Energy usage in buildings” comes into effect on 9 November 2011.

What does this mean?

All new buildings and building extensions as per the building occupancy classes specified in the regulation will be required to have thermal insulation installed. Roof assemblies, i.e. roof covering materials such as tiles or metal sheeting, ceilings and added insulation, are required to meet a minimum total thermal resistance as specified for the various climatic zones.

Publication of Standards:

The South African Bureau of Standards (SABS) has published the following standards in August 2011:

  • SANS 10400-XA – Energy usage in buildings

  • SANS 204 – Energy efficiency in buildings

The objective and primary intent of energy efficient standards is to reduce CHG emissions by reducing operational energy use of new buildings without reducing comfort and amenity.

How to proof NBR compliance?

When building plans are submitted by the Architect or building owner to the local authority the building plans have to comply with the National Building Regulations, SANS 10400-A general principles and requirements. Building plans will not be approved if it does not comply with the regulations. Any person intended to erect any building, shall submit to the local authority a declaration by a professional person in the relevant portion of Form 1 contained in SANS 10400-A as to how the applicable functional regulations shall be satisfied.

Buildings Control Officers (Inspectors) are trained by the National Regulator of Compulsory Specifications (NRCS) to ensure that buildings are built in accordance with the requirements of the National Building Regulations and specifically with the energy usage requirements. No compliance – no occupancy certificate.

SANS 10400-XA Energy Efficiency in New Building

Please refer to the news article dated "How to select the correct thermal insualtion and climatic Zones". It explains that that each climatic zone in South Africa has different R-value requirements for certain walls and ceilings. The appropriate thickness and R-value of insulation for your climatic zone, correctly installed, will protect your home against the cold, heat and save electricity providing a comfortable, healthy, safe and quiet space for you and your family. 

Contact us:

Please contact us on 031-4681234 if you require any insulation materials that comply with the latest building regualtions or need guidance on how to apply these new regulations so ensure an energy efficient building.


Thermal Insulation Association of Southern Africa      

The Thermal Insulation Association of Southern Africa (TIASA) established guidelines available for comsumers and professionals and the objective is to desseminate knowledge about insulation and its performance requirements within the building envelope.

A comprehensive reference is availbale on