Getting hit with a huge utility bill is unpleasant, but it’s even worse when you know that it’s high due to heat or air conditioning loss through the doors, windows, or walls. Fitting exterior walls ...

Q: I just bought my first house and am about to remodel my basement. The previous owners of the house glued 2-inch-thick foam insulation to the poured concrete walls. It’s got an aluminum foil face on ...

A question appeared recently in your column about insulating an early 1900’s house from the inside. Your answer concerned the use of foam insulation and the application of rigid foam board to the ...

Q: Is it a good or bad idea to insulate house walls if the exterior is brick and the interior is plaster? It’s been recommended that we insulate our walls. The house was built in the 1940s. The ...

I am renovating a house and the floor in our rec room gets very cold. We have an accessible crawl space below it. I would like to put up unfaced insulation between the floor joists and lay carpeting ...

Insulating exterior walls with new insulation in a hidden wall cavity during an upgrade is challenging. Insulating outside walls cavities with injection foam shows promise as one solution. It’s not ...

My townhouse back wall (south facing) in the kitchen is very cold. I’m looking for a way to airseal and insulate in the wall between the brick and the wall, without pulling out my whole kitchen. Has ...

This question was asked following an 'Ask the Expert' on how to further improve insulation in the home after cavity wall insulation was fitted. Read the full story here: 'What is the cheapest way to ...