How much air does dense-packed cellulose leak?
I've been thinking a lot about dense packed cellulose and reading up on it's various properties. I found an excellent discussion on this same message board: http://www.greenbuildingadvisor.com/community/forum/energy-efficiency-an....
What I've learned on this discussion is that desnse packed cellulose is not considered an air barrier because it does not meet the ASTM standard for an air barrier at 0.02 l/sec-m2 or 0.004 cfm/sf @75Pa. This makes sense to me. What I'm trying to find out is if there have been any studies published about how air permeable dense packed cellulose actually is. I'd like to see numbers, and especially numbers expressed in the same form as they are expressed when talking about actual air barriers. Any ideas?
Posted Wed, 06/25/2014 - 06:46
Edited Wed, 06/25/2014 - 08:25
Other Questions in Green products and materials
Since drywall has a permeance of 0.02 liter/sec - m at 75 PA is ever possible to have sheathing dry to the interior of the home?