Open- vs. Closed-Cell Spray Foam - GreenBuildingAdvisor
2009年10月29日 · Benefits of closed-cell spray foam. by Neal Ganser. Replacing long-obsolete insulation materials with closed-cell or open-cell spray polyurethane foam is a big step in the …
Does Spray Foam Insulation Off-Gas Poisonous Fumes?
2010年2月17日 · Spray-foam insulation has become a weapon of choice for many builders and homeowners trying to build tight, energy efficient houses. And with its long list of attributes, …
Flash-and-Batt Insulation Method - GreenBuildingAdvisor
2013年1月22日 · Flash and batt insulation is a method of insulating standard stud walls by augmenting fiberglass batts with 2 inches of closed-cell spray foam applied to the interior of …
Spray Foam Insulation: Open and Closed Cell
2010年2月16日 · If you want spray foam, open-cell spray foam would be better than closed-cell spray foam in this assembly, because open-cell spray foam is vapor-permeable. If you install …
Is closed-cell spray foam fire resistant or does it spread fire?
2012年10月18日 · I was told by the foam company (that does both kinds) that open cell spray foam does not have these stringent requirements because it is more fire resistant. GBA Editor …
Is Using Closed-Cell Spray Foam Worth the Trade-Offs?
2020年1月6日 · Any unvented insulation approach from the interior may need some amount of closed cell spray foam to be a resilient long term solution, but simply blasting 7-8" of closed …
Three Ways to Insulate a Basement Wall - GreenBuildingAdvisor
2021年2月19日 · Adding R-15 seems more than sufficient, but then adding an any fibrous insulation below grade has risks - even rockwood and even with the closed cell spray foam. If …
Exterior insulation with closed-cell spray foam walls
2020年5月10日 · Then you can do still rigid foam outside and (a) the wall assembly can still dry to the inside and (b) thermal bridging would be less of an issue because the studs would be …
Closed-cell spray foam insulation – is it safe? - Green Building …
2013年4月21日 · We are reading lots of things about spray foam insulation, and have just had the attic space in our new home spray foamed with a closed cell variety. We are contemplating …
Closed-cell spray foam insulation: between rafters or joists?
2018年10月19日 · Because I wanted a whole house attic fan in our new cabin and it looked like the fan (plus the windy location) might end up disturbing blown-in insulation, we opted to go …