How To Spray Fiberglass Insulation In Attic

We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons.

How to spray fiberglass insulation in attic. To get a better air seal. In this video this old house general contractor tom silva shows affordable ways to create an energy efficient attic. Cut fiberglass batts to fit tightly between floor joists. If installing shredded insulation fill the attic space at least 15 inches high with insulation.

Spray foam insulation is an incomplete name. Lay the fiberglass batt between the joists with the paper vapor barrier facing down toward the heated space. Blow in insulation until the hopper is empty. The pros often use spray foam insulation or blow shredded insulation.

I can also tell you that 73 of all statistics are made up on the spot so please don t ask for. Both can be added to uninsulated attics or layered over existing material. Lightly press the batt down between the joists. Once you deal with the air up there this problem goes away with or without the insulation in the attic floor.

If installing fiberglass mats start by laying the mats at the furthest point from the attic access. Blown in spray foam batts and blankets. A how to on installing certainteed s insulsafe sp and truecomfort blown in fiber glass insulation into attic applications including application techniques. For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6.

Your options for attic insulation range from radiant barriers to sheets of mineral wool but most homeowners stick with products made from cellulose or fiberglass. A properly done spray foam job not only insulates but also greatly reduces the air leakage of. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. It really should be called spray foam insulation and air barrier.

For diy attic insulation you ve got two choices. Homes insulated with it can be some of the most efficient and comfortable homes built. Then pivot in place and do the same thing to the other side. I ve been in plenty of these homes and can tell you that when spray foam is installed properly they outperform 99 of fiberglass batt insulated stick built homes.

Roll the sheets out and cut them perpendicular. Spray foam insulation is a great product. Move across the attic until you ve hit your desired height at every point. When you reach a wall pull the insulation back over a joist lay a level over the insulation and cut across the level.