BS EN ISO 12567-2:2005

This standard BS EN ISO 12567-2:2005 Thermal performance of windows and doors. Determination of thermal transmittance by hot box method is classified in these ICS categories:

• 91.060.50 Doors and windows
• 91.120.10 Thermal insulation of buildings

This part of ISO 12567 specifies a method to measure the thermal transmittance of roof windows and projecting windows.

It does not include:

• edge effects occurring outside the perimeter of the specimen;

• energy transfer due to solar radiation on the specimen;

• effects of air leakage through the specimen.