Those pesky questions about air barriers and vapor barriers just won't go away
Images:
[![][1]][2]
Erik Olofsson is planning a small house in the Rocky Mountains of British Columbia. Ideally, he'd like to get the walls close to R-40. The question is how.
"Seeing that the received opinion around GBAGreenBuildingAdvisor.com is the tandem of polyethylene sheeting and exterior rigid foam is not ideal, what do the builders on this site recommend?" he asks in a [post at the GBA Q&A forum][3]. "Larsen trusses seem fairly labor-intensive and rigid foam is expensive ... Is a double-stud wallConstruction system in which two layers of studs are used to provide a thicker-than-normal wall system so that a lot of insulation can be installed; the two walls are often separated by several inches to reduce thermal bridging through the studs and to provide additional space for insulation. the answer?"
[1]: http://www.greenbuildingadvisor.com/sites/default/files/imagecache/blog-river/ZEH Wheat Ridge 3 alt.JPG (Double-stud wall)
[2]: http://www.greenbuildingadvisor.com/blogs/dept/qa-spotlight/choosing-cost-effective-wall-system
[3]: http://www.greenbuildingadvisor.com/community/forum/general-questions/24076/what-cost-effective-wall-assembly
URL: http://www.greenbuildingadvisor.com/blogs/dept/qa-spotlight/choosing-cost-effective-wall-system
No comments:
Post a Comment