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 ...

The spray foam version is made completely from natural and recycled materials ... installers are able to spray on the insulation. You cannot DIY this product, which automatically means the ...

Some of these are considerable and some are negligible, but unless you buy one of those DIY spray ... the insulation is being installed. Installing spray foam to an uninsulated attic is generally ...