Use expanding spray foam insulation or caulk to seal any ... This guarantees that the new blown-in attic insulation performs effectively and doesn't trap moisture or odors.
For attic walls, the recommended R-value varies based on climate zones. Each type has pros and cons. For example, fiberglass insulation is cost-effective but less airtight, while spray foam ...
Combine that with spray foam's long lifespan, and you're looking at one of the most cost-effective insulation methods you could ever get for your attic. Person measuring the depth of blown-in ...