Installation Guide

6 CertainTeed Corporation, Building Science Department
Window and Door Treatment – Figures 7 through 10
• Cut the MemBrain
™
sheet to fit the rough opening.
• Slit the lm at the corners. (See Figure 7)
• Apply recommended sealant between the lm and the window frame.
• Staple through the sealant to the window head, jambs and sill. Seal the window to the rough
opening with recommended sealant. (See Figure 8)
• Apply recommended sealant between interior nishing material (typically gypsum board) and
the attached MemBrain
™
sheet. (See Figure 9)
Figure 7: Cut MemBrain
™
sheeting to tightly fit penetrations.
MemBrain™
Sheeting
Window Rough Opening
Junction Box
Wood Stud
Electrical
Outlet
Figure 8: Window rough-opening treatment. Figure 9: Window finish treatment.
Window Head
Sealant
Window Jamb
Window
Gypsum Board
Wrap to inside
of frame, slit at
corners, fold
and staple to
rough opening
Apply sealant
between MemBrain™
Sheeting, window
frame and gypsum
board
MemBrain™
Sheeting
Window Sill