Double glazing for heat and sound insulation (Withdrawn)
THIS PUBLICATION HAS BEEN ARCHIVED.
Whilst this publication can still be purchased some of the information in it has been superseded by more recent research and standards. The BRE Group does not accept any responsibility whatsoever for any loss or damage, including - without limitation - indirect or consequential loss or damage arising from use, or loss of use, of data or profits arising out of, or in connection with, the use of this document.
Please note that this is a scanned copy of a paper originally published in 1993, so the text and photographs are not as clear as in documents created as pdf files.
Two diverse environmental requirements have stimulated the production and use of various forms of double and triple glazing - a desire for improved heat insulation and the need for protection against external noise.
The essential difference between double glazing designs to meet these two needs lies in the width of the air space. For heat insulation, air-space widths as small as 6 mm are of some value; for sound insulation, air-space widths of not less than 100 mm, and preferably more, are essential but there are other factors which are also discussed.