§ Mr. Freesonasked the Secretary of State for the Environment what consideration he has given to including making double glazing mandatory in his draft new building regulations and to relaxing the limits on the permitted size of windows; and if he will make a statement.
§ Mr. Geoffrey FinsbergDouble glazing is not always cost effective, and it is therefore not appropriate to make it mandatory. Designers and builders are, however, free to incorporate it in their buildings where they consider it sensible; by doing so, they are able to increase the size of windows without wasting energy.