Settled fiberglass batts in the attic
Why it happens here
Builder-grade fiberglass compresses under its own weight and loses R-value over time. In Mountain View Estates, we find batts two to three inches below the top plate on homes less than 15 years old. The wind makes the loss worse because air moves through the fiberglass.
Our approach
We measure the existing depth, remove failed sections, air seal the attic floor, and blow in cellulose to a consistent R-49 or better. Cellulose fills the gaps around trusses and wiring that batts miss.