Do-It-Yourself Rodent Control

Use Spray Foam Insulation In Your Attic

Spray foam insulation has a lot of uses. It can be used around your house to improve insulation, weatherproof hollow walls, and improve soundproofing. It can be used just about anywhere because it is safe and easy to apply, even in small areas. It does have some limitations, but it is perfect for adding insulation to your attic if you have exposed floor joists. If you can climb into your attic and spray foam into the joist and stud bays, you can dramatically increase the insulation during the summer and reduce heat loss during the winter. This article shows how foam insulation works and how to best apply.

Spray Foam Insulation Cans

Spray foam insulation cans are extremely convenient and easy to work with because they are small and light. This makes them ideal for adding insulation to your attic, especially when the space is confined. For instance, you will often need to crawl along your ceiling joists when you are working in your attic. Using a large pneumatic spray foam machine is simply not going to be practical or efficient. You cannot carry a large hose pneumatic as you move along the floor very easily.

The only drawback to spray foam cans is that they are small and have limited capacity. This means you will need to go through a lot of cans. Also, spray foam cans will probably cost more than the mixture you use in a pneumatic sprayer.

Spraying the Foam

The key to spraying the foam is to make sure it fills in the entire bay. The thicker the foam is, the more insulation it will provide. But, you don't want the foam to be so thick that is actually taller than the joists. You can put plywood on top of the joist bays after the foam is applied to add even more insulation to your attic. If the foam is too tall and sticking out past the 2x4s, your plywood might not be able to rest evenly. You can easily scrape away the excess foam with a putty knife.

Spray foam is a great alternative to fiberglass batting insulation. It is not itchy and it does not shed. It is also more permanent because it will adhere to the drywall and bays.

Applying spray foam in an attic might be tricky and awkward. The physical nature of the work is hard, so don't do it on a hot day when your attic is sweltering. For more information, check out websites like