How an Attic Door Reduces R-30 to R-6

General Inspection Topics General Inspection Discussion
1

In this two-minute excerpt of a home inspection training class, learn how an uninsulated, unsealed attic access door reduces the weighted average of the attic insulation R-values.

2

Nice.

3

Ben,

Do we have a gallery illustration for what was suggested in the sample report for Home Inspector Training Class #14 for the following narrative?

“According to the U.S. Department of Energy, an attic access that is not insulated is a big hole and deficiency in
the thermal barrier between the attic and condition space. This gap in the attic insulation increases heat loss in
winter and heat gain in summer. An unsealed attic access can potentially leak the same amount of air supplied
by a typical bedroom heating duct (~100 CFM). To insulate an attic access, a lightweight, moveable box or
panel can be constructed from rigid foam to fit over the access from the attic side. For more information, visit
www.eere.energy.gov. Recommend insulating the attic access. See the illustration.”

Going through the gallery and couldn’t locate one.

4

No. But we have http://www.nachi.org/gallery/insulation_and_energy/general/where-to-insulate.jpg. We’ll put that new graphic on our list for our big gallery of inspection graphics at http://www.nachi.org/gallery/

5

Thanks Ben!

6

Great info Ben thanks