Crawl space insulation
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Mark Bischak, Architect
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Will insulating the crawl space help reduce cooling costs?
Comments (3)yeah...Entergy is going to help you out! LOL! they do actually have a program in N.O. through Entergy using local energy raters. a little biased, but it is what it is. below is a copy & paste link to LSU AgCenter's study about insulating floors in homes with open crawlspaces. http://www.lsuagcenter.com/NR/rdonlyres/D33F711D-DC4B-4E4C-9ED6-A97DCE9DB026/79806/pub3187insulatingraisedfloorsHIGHRES.pdf I plan to insulate my floors with closed cell 3" everywhere...not average fill. once floor in bathroom is replaced and plumbing is finished. your biggest battle is going to be getting 3" everywhere, and not just averaged fill. plan to crawl under house before they leave. take a piece of wire with inches marked on it and a can of spray paint. have them come back and touch up low spots. knowing the foam companies you'll have to deal with, plan on double checking the work and not relying on their word that it is right. understand that closed cell is about R-7 per inch so 3" is R-21. actual R-values not quanitive values are what is important. best of luck....See MoreUnvented crawl space insulation
Comments (5)There are several problems I read here. Although it wouldn't hurt to insulate the ceiling under the room, I don't think that is your problem. You mention you did not see a return. It may have one but doesn't sound like it to me since you mention you keep the door to the room closed and the temp. drops drastically. If you are not taking air out of the room, you won't be letting conditioned air in. The size of the room also causes me to suspect there should be 2 supplies and 2 returns (without knowing the size of your existing system). You mention this room is an addition. I suspect the supply, return, heating, cooling systems were designed for the original sq. footage and was not upgraded with the addition. That doesn't mean things can't be done to improve what you have now. For us to really give you much in the way of more precise helpful information, we're really going to need much more information in return. We can steer you in a direction but you will need to have a qualified tech. to come in and do load calculations and make a true assessment of what really needs to be done. Just sitting here reading what you have mentioned, I can only guess (from experience) that you need some rework done. I may be wrong...maybe the original design was to allow for this addition. A Tech doing a site survey can surely better determine that....See MoreDivert soil water away from crawl space & mitigate crawlspace Radon
Comments (3)Once you landscape, you should solve most of your water problem. Adding exterior water proofing and drain tile around the entire foundation to exit on the down hill side will solve the rest of the intrusion into the crawl space.There really are no shortcuts in dealing with active water intrusion into a crawl/basement space. Preventing the water from entering is really the only sure way to maintain a dry space. As for the radon abatement, there are lots of solutions. Passive abatement is the least expensive long term. That means installing a grid of drain tiles(holes downward) and a stand pipe(extending to a height above the roof) under gravel. Then the plastic you mentioned and pour the concrete floor. The passive system is done without the concrete, with the plastic sheeting glued to the foundation walls and any pipes. Pouring a floor over it is fine., but the sealing is still very important, as concrete alone will not effectively seal against the gas. Which is forced from the earth naturally by pressure in the earth. Even though radon is heavier than air, the passive system does not allow the gas anywhere to go save into the piping and eventually up the stand pipe and out into the outside....See Morecrawl space insulation
Comments (1)As per this Building Science Corp. guide, insulate the interior walls of the crawl space with a non-water sensitive material, such as closed cell spray foam or expanded or extruded polystyrene foam boards....See MoreCharles Ross Homes
last yearMark Bischak, Architect
last yearlast modified: last yearHU-758024807
last yearCharles Ross Homes
last yearHU-758024807
last yearMark Bischak, Architect
last yearHU-758024807
last yearHU-758024807
last yearHU-758024807
last yearCharles Ross Homes
last yearCharles Ross Homes
last yearlast modified: last year3onthetree
last yearworthy
last yearlast modified: last yearDavid Cary
last yearCharles Ross Homes
last year
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