BP Canada – Excel sheathing
arnoldk
| Posted in Green Products and Materials on
Hi,
I am looking at possibly using Excel sheathing on the inside of the 2×6 double stud wall as the air barrier. The company states it’s an air barrier membrane to a structural “high resistance” wood fibre insulation panel.
I am not sure if this product can be a direct replacement for typical OSB/plywood is terms of structural and stiffness to the wall assembly?
https://bpcan.com/produits/excel-insulation-panel/
Thank you,
Arnold
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Replies
Also make sure that the resulting wall complies with the recommendations in Table 2 A or B here. Short answer - in cooler climates it will need either a Class I on the interior side or exterior insulation.
Hi Jon,
This is the proposed wall assembly which will use the BP Canada Excel sheathing which will also act as an air barrier. All the seams are taped with Siga 60.
-- Exterior Wall (~R-60) --
Siding
Rain screen
WRB
Comfortboard
2x6 with Comfortbatt
0.5" Fiberboard structural sheathing (Air Barrier)
3.5" space with Comfortbatt
2x4 with Comfortbatt
Vaport retarder
Drywall
Arnold