After decades of arguing, homeowners still can't pick a clear winner.

Q. I recently had new thermal windows installed and the contractor used pieces of fiberglass insulation to seal gaps around the frames before adding interior trim. I thought spray foam would be better ...

My house has an unfinished basement. Does the exposed fiberglass insulation in the ceiling pose any risk to my children, who sometimes play there? —A.O., Cold Spring, N.Y. Probably not. While some ...

The questions keep coming: I have ice dams! Why? Help! And leaks from those ice dams! Gutters overflowing or frozen solid. Use heating cables? Water running down the outside of the house, brown in ...

That space above your ceiling might be draining your wallet every single month.

Condensation control — Preventing condensation that could damage insulation and other HVAC system components or possibly lead to microbial growth; and Energy conservation — Reducing HVAC system ...

Q: I wonder if ceiling insulation in a basement does any good. The basement is not heated and gets chilly in winter. The ceiling is insulated with 9 inches of fiberglass batting that was once covered ...

Insulation4Less publishes updated resource covering condensation control, fire resistance, sound performance, and ...