What’s the Best Way to Insulate Crawl Space Walls?
Sep 22, 2014 · To insulate the crawl space walls, Chappell-Dick wonders whether Rockwool Comfortboard 80, a rigid mineral wool insulation, would make a good substitute for rigid foam. Rockwool Comfortboard 80, according to the manufacturer, is non-combustible and chemically inert, and it’s made from natural and recycled materials, including rock.
Unvented Crawlspace Insulation and Vapor Barrier
Mar 1, 2024 · Because of this, I’ve decided to convert the previously vented crawl space to an unvented and conditioned “basement”. Property is located in climate zone 3C, sunny southern California and I have had no problems with water intrusion into the crawl space, even with historically heavy rains these past few months. It is clean and dry.
Crawlspaces - GreenBuildingAdvisor
Nov 17, 2009 · Main crawling space from dirt to floor joices is about 5 ft high but under the 13 x 18 ft spare bedroom dirt is about 2 ft from floor joices no vents,, nothing to remove hummidity and has 100% block wall between the 2 crawlspace the main crawl space has 2 small window vents across from each other.
Sealed crawl space - GreenBuildingAdvisor
Dec 3, 2024 · We got a reasonable quote to encapsulate (20 mil at floor, 12 mil at walls, foam at the rim joist (with space for termite inspection), dehumidifier, and new crawl space door. I’m inclined to have the crawl encapsulated b/c I think it will help with the critter problems and generally improve the air quality/air seal and help with humidity ...
Rockwool for Crawlspace Insulation - GreenBuildingAdvisor
Jan 4, 2022 · I’m planning to insulate my 1905 bungalow on the Central Coast of California (Zone 3). At this point for cost purpose I’m going to limit the insulation to the attic and crawlspace. A green builder in town recommended blowing in cellulose in the ceiling and then to use Rockwool and Mento for air ceiling in the crawlspace.
Insulation in floor joists of an encapsulated crawlspace?
Jul 12, 2015 · If you insulate your crawl space walls, bringing your crawl space into the conditioned volume of your house, there shouldn't be any need to install any insulation on your crawl space ceiling. Here is a link to an article with more …
Crawl space insulation - GreenBuildingAdvisor
Jan 19, 2019 · Crawl space insulation alan72 | Posted in General Questions on January 19, 2019 11:12pm In climate zone 5, does a conditioned crawl space need insulation under the poured slab?
Crawlspace foam board and fire code? - GreenBuildingAdvisor
Mar 31, 2013 · In sections R314.5.3 and R314.5.4, the IRC defines an ignition barrier as one of six permissible materials: 1 ½-inch-thick mineral fiber insulation; ¼-inch-thick wood structural panels (e.g., plywood); 3/8-inch particleboard; ¼-inch-thick hardboard; 3/8-inch-thick gypsum board; or corrosion-resistant steel having a base metal thickness of 0. ...
Faced or Unfaced Insulation in Vented Crawlspace… Which is right?
Been getting quotes for insulation in our vented crawlspace (16″ on center). Some vendors are recommending R19 faced (with vapor barrier on the underside, facing the ground) and some recommending R19 unfaced. One guy even proposed faced with the vapor barrier on the topside, against the subfloor.
Building an Unvented Crawlspace - GreenBuildingAdvisor
May 13, 2011 · To insulate the crawl space, I purchased 2.5 inch Thermax (from Green Insulation Group in Worcester) and have been installing it on the interior walls of the crawl space about one inch down from the top of the foundation sill to about 2 inches off the floor.