Attic Blow-In Insulation

Address thin or uneven attic coverage

Rooms beneath an under-insulated attic can feel hotter in summer or colder in winter. Blown-in insulation adds coverage across an accessible attic floor, including irregular spaces around framing. The right material and installed depth depend on the existing insulation and the target thermal resistance, or R-value.

Before adding material, discuss roof leaks, ventilation, air leaks and access with CJM. Insulation and air sealing serve different purposes: insulation slows heat transfer, while sealing closes paths for air movement. An attic upgrade should account for both.

What to discuss with CJM

1. Review existing coverage, access and signs of moisture.
2. Agree on material, target R-value, air sealing and ventilation clearances.
3. Install the agreed coverage and review depth markers and completed work.

Questions about attic blow-in insulation

Based in Hamilton, OH, CJM serves Cincinnati, Dayton, Northern Kentucky, and southern Indiana. Check your service area and share your property address when requesting a quote.