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 ...
A well-insulated attic does a lot to prevent energy loss, contributes to lower cooling costs in the summer months and heating bills in the colder months. So, consider having an insulation ...
Adding blown-in insulation to your attic space is definitely one of the ... barrier and maximizing efficiency/lowering utility costs. While you're up there, pay attention to light fixtures.
Cost: $300 (attic insulation), $23 per 4' x 8' board (solar sheathing), $4,000 (new roof), $600 (whole-house fan), $570 (whole-house heater), $1,450 (two skylights) After $18,500 in rebates and ...