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bobelectric 10-13-2013 11:03 AM

Fiberglass ceiling tiles
2x4 ceiling layin tiles covered with 6 " of insulation. is this an over kill? Office setting.

drgguy 10-13-2013 11:06 AM

No it's not over kill I have done commercial insulation for over 20 years and this is average in my area.

joecaption 10-13-2013 11:28 AM

What's above it for insulation? Is there a flat roof?
Your in heating zone 5 so there should be between R-49 and R-60.
6" is only about R-19.

Windows on Wash 10-13-2013 12:08 PM

Depends on what the roof and insulation assembly is in that as well.

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