On Sunday, May 13, 2018 at 12:09:22 AM UTC-4, wrote:
On Sat, 12 May 2018 21:47:14 -0600, rbowman
wrote:

On 05/12/2018 01:56 PM, Jimmy Wilkinson Knife wrote:
On Sat, 12 May 2018 20:29:06 +0100, rbowman wrote:

On 05/12/2018 07:54 AM, Jimmy Wilkinson Knife wrote:

What annoys me is the way that under the floor is vented to the
outside! WTF? Vent it to the inside, then it stays warmer and dryer.

Warmer maybe but it tends to turn into a swamp.

No, heat reduces RH.


Unless it's well insulated, which most crawl spaces aren't, the warm,
moist air condenses on the cold walls.

There is supposed to be a vapor barrier between the living space and
the crawlspace. I am not sure what they do these days but it used to
be tar paper between the floor and sub floor.

My living room and dining room are over a crawl space (the rest of the house
is over a basement). There appears to be 80-year-old rosin paper between
the floor and the subfloor.

We had our crawlspace lined (with really heavy PVC tarp-like stuff) some time
ago. It works pretty well.

Cindy Hamilton