The cost to install spray foam insulation ranges from $600 to $10,000 ... like a crawl space or small attic, it can require more time, labor and special equipment to complete, which will increase ...
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 ...