The above are two good, and siilar in approach answers, but there are two issues it seems no one includes:
1) If you house was built before 1978 it must be inspected by a certified contractor or lead ... read more
What kind of insulation is needed in the attic of my 2-story brick town house so that the 2nd floor bedrooms are as cool as the basement and 1st floor?
Spray foam insulation is by far the best for an attic. It is sprayed in the rafters areas and basically seals off the entire attic and stops the heat as soon as it enters from the roof. It can be ve ... read more