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I'm currently working on continuous insulation wall details for a residential design and would prefer to keep the exterior sheathing against the studs for lateral structural design needs. Does anyone have experience with locating the CI on the interior side between the studs and gypsum wall board?
J.H. Dickerson, AIA
You'll want to use a German software nicknamed "WUFI" which calculates the dewpoint in walls and can tell you if the thermal envelope you are planning will work. The colder the climate, the more outsulation you need.
Doug Walter, AIA
2019 Master Design Award Winner, Qualified Remodeler
First Place , NKBA Rocky Mountain Chapter Peak Awards 2019
Contributing Editor, Pro Remodeler Magazine
Named one of KBDN's "50 Top Innovators"
Sent from Mail for Windows 10
I would recommend against this type of install. Let the framers frame as normal, apply your WRB directly to the sheathing, then install the CI – many years / projects of successful installs. Best practice would be a rainscreen installation with a furring / strapping over the insulation board, and then install the exterior wall cladding over the strapping.
Scott L Witt, AIA CPHC
Witt Architecture Office
713 West Johanna St
Austin, TX 78704
You may care to check out Joe Lstiburek/Building Science Corporation's article on "The Perfect Wall".
The article has very interesting recommendations for wall assemblies with continuous insulation that work in all climate regions. Also, here's a link to some videos on YouTube of a builder discussing these wall assemblies.
To your stratospheric success,
Kendal W. Perkins
Architect, AIA, MBA
Apex Architectural Services, LLC
177 Shamard Drive / Natchitoches, LA 71457
Tel: (318) 581-3237
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