Details
 

Researcher:	Henk De Bleecker Richard Harris
Funded:	DETR PIT programme / industry
Total value:	£43,150
Lead partner:	CWCT
Status:	Completed

Background and justification:

European standard EN 10077 will provide a method for assessing heat transfer through windows by simplified calculation (Part 1) or numerical calculation (Part 2) using computer software based on finite element analysis or the finite difference method. However, the UK window industry is unfamiliar with the analysis of heat transfer, and is not prepared for the introduction of this standard. By contrast the North American window industry has been using a heat transfer ratings scheme for more than 3 years.
With the introduction of the European standards the UK window industry may find itself at a significant disadvantage when trying to compete with overseas competitors.
 

Objectives:

To provide a simple review of the standards either in use, or in preparation, world-wide, for assessing heat transfer through windows.
To provide a review of the software available, or in preparation, for assessing window heat transfer.

To summarise the various window energy rating schemes in use, or in preparation, world-wide.
 

Outputs: