Yes but no. (I thought you'd like that one.)
Aluminum reflectors will turn back RADIATION heat losses into the house, and in fact help to limit heat losses. However, they will only work if there is at least a half-inch air space in front of the reflective surface and the surface remains clean an...
Gordon from Montreal writes asking about the use of Celotex foam insulation (with aluminium foil cladding on both sides- 4 X 8 sheets). He writes:
"For your information, the Celotex product is considered by many, to be a premium insulator for residential installations. Ironically it is made in C...
Common Name: Cellulose Fiber, ground up newspapers.
Colour: Grey or white.
Thermal Resistance: RSI - .025/mm R - 3.6/in. Good
Cost: Lowest plus blower. (The only blowers that can be rented by homeowners)
Capacity to dry out if wet: Fair to poor
Fire Resistance: Good to Fair (Borax can leach ...