Rigid foam board in Newfoundland
I live just outside St. Johns Newfoundland and will be building a new house this coming spring. I will be using 2x6 for framing. In the cavities I will install Roxul R -24. ½ spruce plywood covered by building wrap. Next I plan on installing 2 inches of Owens Corning ridged foam, tape seams. Next 1x4 strapping, rainscreen on 16 centers for attaching 6 inch spruce clapboard. My question is 2 inches enough to keep the wall warm where I live. Average winter temperature is 0C but it can get colder. Also can be quite damp with horizontal rain due to high winds.
Posted Sat, 01/12/2013 - 08:39
Edited Sat, 01/12/2013 - 14:40
Other Questions in Energy efficiency and durability
Has the Oak Ridge study on convective heat loss in blown fiberglass been updated to cover newer materials?