biffvernon
Member
- Messages
- 4,607
- Location
- Lincolnshire
moreNew research from English Heritage renews calls for the retention of original sash windows
For the first time in England important scientific evidence is available to counteract some of the misconceptions about the energy efficiency of original timber sash windows, a unique feature of England’s built heritage which is under threat and fast disappearing.
English Heritage has released the findings of a study into the thermal performance of traditional sash windows using a 2 x 2 timber sliding sash window dating from the 1880s which had been rescued from a skip. The results showed that even the simplest repair and basic improvements will bring significant reduction of draughts and heat loss, and that using a combination of these methods will upgrade a window to meet Building Regulations targets.