Q-My home has painted concrete walls and ceilings, and in winter they sweat badly. I used waterproofing sealer on the outside and high-quality paint inside, but the sweating continues. What`s the ...

Q: I have a crawlspace under my house. Last fall, I put insulation between the joists of one room to try to warm the floor somewhat. I put roll insulation between joists and nailed 4-by-8 ½-inch foam ...

Q: I have a room with a crawlspace under it about 20 inches high. The room has 12-inch floor joists, with rolled batt insulation. I’d like to insulate the block walls to reduce the amount of thermo ...

Demonstrating how water vapour diffusion can greatly reduce the effectiveness of a material, Dr Laurentiu Pestritu underscores the importance of selecting the right kind of insulation in the interest ...