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 ...

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 ...

Also, if you use any kind of fibre-based insulation, it will turn to an ugly, moldy mess in a bedrock crawlspace, guaranteed. I always recommend against this, even in conventional basements.

I am glad you have read one or more of the articles I have written on the most effective way to insulate and heat a crawlspace, but you may have missed at least one critical item. Not only are ...

Some crawlspace projects—like full encapsulation, insulation or repairing structural damage—are best left to professionals. While it’s tempting to DIY everything, expert help can save you ...

According to this map, Mill Valley is in zone 5. Assuming your heating system is natural gas, the recommended insulation level for a crawl space is R-13, walls are R-13 and attic space is R-38.

As such, the same air-distribution rules apply in a closed crawlspace as they do to the living spaces above it: a controlled amount of incoming fresh air balanced by a controlled amount of exhaust air ...