How To Spray Fiberglass Insulation In Attic

When you reach a wall pull the insulation back over a joist lay a level over the insulation and cut across the level.

How to spray fiberglass insulation in attic.

Both can be added to uninsulated attics or layered over existing material. Move across the attic until you ve hit your desired height at every point. The pros often use spray foam insulation or blow shredded insulation. Cut fiberglass batts to fit tightly between floor joists.

Lightly press the batt down between the joists. In this video this old house general contractor tom silva shows affordable ways to create an energy efficient attic. Homes insulated with it can be some of the most efficient and comfortable homes built. It s available in fiberglass mineral wool plastic fibers and natural fibers.

If installing shredded insulation fill the attic space at least 15 inches high with insulation. This type of insulation is ideal for attics with standard spaced beams and joists and very few obstructions. Then pivot in place and do the same thing to the other side. Blow in insulation until the hopper is empty.

It really should be called spray foam insulation and air barrier. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Roll the sheets out and cut them perpendicular. Once you deal with the air up there this problem goes away with or without the insulation in the attic floor.

To get a better air seal. 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. Spray foam insulation is a great product. For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6.

Lay the fiberglass batt between the joists with the paper vapor barrier facing down toward the heated space. Blown in spray foam batts and blankets. We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons. For diy attic insulation you ve got two choices.

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. I can also tell you that 73 of all statistics are made up on the spot so please don t ask for. Loose fill or batt the common term for blanket insulation. Spray foam insulation is an incomplete name.