I need to insulate between joist's in my crawlspace. Anyone have suggestions on a company that could come and do it for a reasonable price?
I need to insulate between joist's in my crawlspace. Anyone have suggestions on a company that could come and do it for a reasonable price?
I've been looking at using this stuff to do my crawlspace and garage walls. I currently have fiberglass under the house, but the crawlspace gets very wet sometimes. This stuff is immune to moisture. http://www.insulation4less.com/Insulation4lessTechnicalArticles-106-Crawl-Space-Insulation.aspx
At the risk of being misinterpreted again in a post, I want to jump in here. I moved from a house that had a finished (fully conditioned) basement to a house with a crawl space that was built around 1980. I like this house much better overall, but a crawlspace just BLOWS!!! First thing I did down there was pull a circuit and deploy 16 light fixtures. I want to see what I'm about to put my hands on! There is 6 mil poly over gravel, and I can usually see droplets of water on the bottom of the poly. Never seen any puddling even after heavy rain, so I don't think a sump is in order. We obviously don't know what degree of wet the OP means when he says wet. Anyway, I replaced all the vents with the automatic kind (they open in warm weather and close in cold) but I have been thinking more and more that these new methods of sealing off and conditioning the crawl is the way to go. The expense is the only thing holding me back from trying. I have 6" batts in the floor joists, but the floors are just cold in the winter. I don't have any frozen pipes, but it's cold. The open vents let in a ton of humidity down there in the summer (the air handler gets a lot of condensation on the outside in places that aren't insulated) and also it looks like either hydrocarbon dirt or mildew is making its way on the bottom of the insulation and edges of joists near the vents. So I would be very interested to hear from anyone that has sealed and conditioned a crawl, and also from anyone that has done a re-insulation of a crawlspace. Kinda pulls this thread sideways but if I was the OP I would appreciate that information also. I thinkGarage and crawlspace walls are 2 different animals.
Vapor barrier in crawl, like polyethelene (saran wrap).
Moisture barrier in above grade walls. Think tyvek or goretex, allows vapor transmission.
For probably less money and more effect --
Start from the outside and get a positive grade away from the house.
Gutters draining correctly?
Inside, lay down some 6mil poly up to grade.
Install some foundation vents, closed in winter, open in summer.
Sump pump, if necessary.
At the risk of being misinterpreted again in a post, I want to jump in here. I moved from a house that had a finished (fully conditioned) basement to a house with a crawl space that was built around 1980. I like this house much better overall, but a crawlspace just BLOWS!!! First thing I did down there was pull a circuit and deploy 16 light fixtures. I want to see what I'm about to put my hands on! There is 6 mil poly over gravel, and I can usually see droplets of water on the bottom of the poly. Never seen any puddling even after heavy rain, so I don't think a sump is in order. We obviously don't know what degree of wet the OP means when he says wet. Anyway, I replaced all the vents with the automatic kind (they open in warm weather and close in cold) but I have been thinking more and more that these new methods of sealing off and conditioning the crawl is the way to go. The expense is the only thing holding me back from trying. I have 6" batts in the floor joists, but the floors are just cold in the winter. I don't have any frozen pipes, but it's cold. The open vents let in a ton of humidity down there in the summer (the air handler gets a lot of condensation on the outside in places that aren't insulated) and also it looks like either hydrocarbon dirt or mildew is making its way on the bottom of the insulation and edges of joists near the vents. So I would be very interested to hear from anyone that has sealed and conditioned a crawl, and also from anyone that has done a re-insulation of a crawlspace. Kinda pulls this thread sideways but if I was the OP I would appreciate that information also. I think
From what I have been reading, foamed in insulation attracts moisture. I do not know that to be fact, it is what I have read. Of course, some of the things that you read about opposing products are designed to sell other products. That is why I would be interested to hear from others on this forum that may have tried any of these solutions. In the meantime, I have cold floorsRather than a conditioned crawl, why not pull down the batts and foam it in? http://www.rhhfoamsystems.com/product.php
Went through the FAQ's on the foam site- not very promising for a crawlspace, which is by definition a moisture filled environment. From what I can glean, vapor barriers would be necessary between the foam and floor (defined as warm space), and then something would need to close off between the foam and the moisture rich environment. That still leaves the nasty, moisture rich, disgusting crawl space
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