Journal of Poor Homebuilding v.5

by Erik North on June 8, 2012

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Ohh, attic hatches…one of the most common symptoms of a problematic attic hatch is dirt and dust getting caught in the fiberglass insulation surrounding it. As some auditors say, as an insulation, fiberglass is an excellent air filer.

This photo shows the fiberglass surrounding an unsealed and uninsulated attic hatch. Years of excessive air movement has left gobs of crud suspended in the fiberglass fibers.

Related links:
How To Insulate and Air Seal an Attic Hatch
Air Barriers and You
What is a Vapor Barrier?
How To Insulate and Air Seal Attic Pull Down Stairs?

Fiberglass...as an insulation, it is an excellent air filter.

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