Settled fiberglass batts leaving the top of the attic bare
Why it happens here
Fiberglass batts lose thickness over decades, and in a Country Hills attic with any foot traffic, the material gets compressed and moved around. After 30 years, what was R-19 is often closer to R-11, and the top plates are completely exposed.
Our approach
We measure the actual depth, not the original spec, and blow in cellulose to bring the whole attic up to R-49. We also air seal the top plates and penetrations so the new insulation is not just covering a leak.