Commercial Details Using Foam Sheathing

The following details were produced by the Boston Society of Architects Building Envelope Committee for the Massachusetts Board of Building Regulations and Standards. The details represent several possible solutions for integrating foam sheathing continuous insulation into the building envelope. Download PDFs below: 


A Brick, 2” Cavity, Continuous Insulation, Air/Vapor Barrier, Sheathing, Steel Stud Backup Wall and Gypsum Drywall Interior Finish
B Brick, 2” cavity, 1” insulating sheathing (air barrier), R-11/R-13 (maximum), unfaced fiberglass batts in stud space (check climate zone), stud back-up wall.
C Brick, air cavity, R-3 continuous rigid insulation, 15# felt, sheathing air barrier, stud back-up, vapor barrier and gypsum drywall interior finish.
D Brick veneer, cavity, rigid insulation, air and vapor barrier, concrete block back-up, gypsum board.
E Single wythe concrete block with R-7 interior insulation. Commercial grade spun-bonded polyolefin air barrier, rigid insulation, vapor barrier, interior drywall.
F Vented rainscreen metal panels, 2” cavity, continuous insulation, air/vapor barrier, sheathing, steel stud backup wall and gypsum drywall interior finish