New answers tagged crawlspace
1
There's nothing wrong with fiberglass insulation beneath the floors. It will be, most likely, the most cost-efficient solution.
If you have a situation where critters like the insulation, well you have a vented crawl space! Critters get in there.
If you have an issue where the insulation gets moist and sags, the problem is not the insulation, it's a ...
0
No.
The vapor barrier is there to keep the moisture in the ground and the humidity in the crawlspace down below the level where mold grows and wood rots. It is left permanently in place to achieve this goal.
Under house humidity control consists of several systems.
A vapor barrier to stop soil surface evaporation from driving moisture into an enclosed ...
2
I think this deserves to have an engineer take a look and give you an opinion. Removing a large portion of the foundation is not something you want to mess with without a plan. Plus if you're going to bother to do it, you might as well make it a real door so that you can actually get boxes in there or something.
As an alternative idea, it might be easier to ...
1
I think I would be inclined to use XPS foam cut and inserted between the joists. Caulk around all of the seams. This is similar to how you insulate rim joists in a basement. It would also act as a vapor and air barrier.
Another option would be closed cell spray foam but this is usually expensive and not a DIY job.
If you were willing to do it from the top ...
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You need to have plastic sheeting - thicker the better stapled to your joists on the bottom with the insulation sandwiched in between. This is a must to first keep wind out and second to protect your insulation.
Additional info - I don't think I would press any insulation accept spray foam up to the subfloor. Using the Building Science findings and ...
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