Duct wrap too tight and compresses R-value
Wrap that is pulled too tight compresses insulation and lowers performance. It should be snug and sealed, not crushed.
Watch out
- Do not tighten wrap like a ratchet strap around the duct.
Check
- Look for flattened insulation at corners, straps, and seams.
- Check that facing is smooth without crushing the insulation thickness.
- Rework areas where the wrap is cinched tight around supports.
- Ask if a support shield/saddle is needed.
Steps
- Look for flattened insulation at corners, straps, and seams.
- Check that facing is smooth without crushing the insulation thickness.
- Rework areas where the wrap is cinched tight around supports.
- Ask if a support shield/saddle is needed.
Say this to your foreman
This wrap looks compressed at [location]. Do you want it loosened/reworked before it gets covered?
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