Best adhesive for Visqueen lapped to concrete block?
DexterBob
| Posted in General Questions on
Looking for an adhesive to stick my 6 mil visqueen vapor barrier to the concrete block stem wall. I want to lap the visqueen up about 6 inches. I have tried duct mastic which sticks well to the block but readily peels from the visqueen. Something other than Tremco?
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Replies
Robert,
The old method was to use Tremco acoustical sealant between the polyethylene and the concrete blocks, and to secure the seam with a 1x4 batten fastened with TapCon screws. The new method is to use Siga Wigluv tape.
[Note to GBA readers: You may be thinking, "What is visqueen?" It's regional dialect. I've never heard the term on a construction site. But in some areas of North America, that's what they call polyethylene sheeting. Visqueen was originally a brand name.]
You might try 3M 8067 flashing tape, which is a little cheaper than Siga Wigluv.