Reference: Research into the thermal performance of traditional windows: timber sash windows, English Heritage (2009) Wood, C., Bordass, B. and Baker, P.

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Abstract or summary

Executive summary and research report summarising the results of laboratory tests of heat loss through a traditional double-hung sliding sash timber window.

The work presented here quantifies the effectiveness of relatively simple measures to improve the thermal perfomance of traditional windows by draughtproofing, and using blinds, curtains, shutters and secondary glazing.