Hanger compresses insulation and creates cold spot
A hanger or strap crushing insulation creates a cold spot and can damage vapor barrier. Support the duct without killing the insulation value.
Watch out
- Do not cinch straps so tight that the insulation is crushed flat.
Check
- Check where strap, rod, trapeze, or support contacts the wrapped duct.
- Look for compressed wrap or torn facing.
- Verify saddle/shield/blocking detail if required.
- Ask before changing support method.
Steps
- Check where strap, rod, trapeze, or support contacts the wrapped duct.
- Look for compressed wrap or torn facing.
- Verify saddle/shield/blocking detail if required.
- Ask before changing support method.
Say this to your foreman
This support is compressing the insulation at [location]. Do you want a saddle/shield or different support detail here?
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