Installation Guide

4 CertainTeed Corporation, Building Science Department
MemBrain
™
Air Barrier System Details
Acoustical and Silicone-based Sealant Application at Sheet Terminations –
Figures 3 and 4
• Use a combination of staples and recommended sealants to attach MemBrain
™
to the top plate,
bottom plate and end studs.
• Place a 1/4 inch to 3/8 inch bead of sealant over the stud surface.
• Place the lm over the sealant without tension and lightly press to ensure complete contact.
• Secure the MemBrain
™
sheet through the adhesive bead with ½ inch staples every
12 to 24 inches.
Lapped Joint Treatment – Figure 5
• Apply a recommended sealant to the wood stud surface.
• Overlap the MemBrain
™
sheet a minimum of 6 inches.
• Staple through the sealant to the studs every 6 to 12 inches.
• Seal the overlapped joint using recommended sheathing tape.
• All vertical and horizontal seams should be treated as described above.
Wood Stud
Figure 3: Sealant application.
Sealant Bead
(1/4 to 3/8 inch)
Figure 4: Fastener application.
Sealant
1/2 inch Staple
Wood Stud
Figure 5: Overlapping seam treatment.
MemBrain
™
Recommended
Sheathing Tape
Acoustical or Silicone-Based Sealant
(ASTM C 920 or C 834)
1/2 inch Staple
(6 to 12 inch Spacing)
Wood Stud