This is 4" tape used to seal the seams of the vapor barrier. It comes in 4" x 180". This will give you a
waterproof seal at the seams. In very wet conditions it is also recommended to use the tape even under the seam to
give it extra protection. The tape is pressure sensitive and achieves 100% strenght in 15 minutes. Other tapes have
been known to release when they come into contact with moisture.
The guidelines is that you need to order 1 roll for every 500 sq foot of the vapor barrier.
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