Barrier Bac VB-350 - Manual (Page 8)

Seaming Tape
Membrane Patch
8˝
8˝
Puncture in membrane
Membrane Patch
- 1 -
- 2 -
Cut a piece of Barrier-Bac Vapor
Retarder in a square large enough
so sides of patch extend eight inches
from side of puncture.
Cover damaged portion with mem-
brane patch and secure all patch
seams with Barrier-Bac Seam
Tape.
All damages to the film must be sealed prior to pouring. Patch all dam-
aged areas with Barrier-Bac and Seam Tape prior to concrete pouring.
Concrete may be poured directly onto Barrier-Bac VB-250 (11 mil) and
VB-350(16 mil). However, a sand or gravel cover is preferred. It is used
at the discretion of the architect or in compliance with local building
and regulatory codes.
VB Installation Guidelines 7
Step 5: Patch Damages and Pour Concrete
VB Products Installation Guidelines
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