Mr. Robert Deegan:

Regarding traditional buildings, the case of the two gentlemen referred to by the Senator is a sad one. Traditional buildings are particularly tricky to treat. They are often built with stone, clay, and lime-based mortar and one cannot use the standard insulation on the walls that one would use with a modern building. The walls behave in a different way because they are made of different materials. This has been a problem for a number of years and the issue has been growing. The good news is that just before Christmas our colleagues in the heritage side of the Department of housing published guidelines for upgrading-----