Vapor-Barrier Seams: Close Every Cut, Tear, and Penetration
Maintain one continuous vapor barrier by sealing seams, overlaps, hanger penetrations, access doors, and repairs with the approved compatible system.
Stop if
- Is this the approved vapor-barrier repair system for these seams, hanger penetrations, and tears?
Watch out
- Do not use general-purpose tape, leave fish-mouths open, or bury a wet or damaged insulation repair.
Check
- Inspect all longitudinal and circumferential seams
- Check hanger and support penetrations
- Repair tears and crushed facing
- Use compatible tape, adhesive, and jacket material
- Hand-check the finished barrier for openings and fish-mouths
Steps
- Inspect all longitudinal and circumferential seams
- Check hanger and support penetrations
- Repair tears and crushed facing
- Use compatible tape, adhesive, and jacket material
- Hand-check the finished barrier for openings and fish-mouths
Say this to your foreman
Is this the approved vapor-barrier repair system for these seams, hanger penetrations, and tears?
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