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.
In this video this old house general contractor tom silva shows affordable ways to create an energy efficient attic.
It really should be called spray foam insulation and air barrier.
Lightly press the batt down between the joists.
For diy attic insulation you ve got two choices.
If installing shredded insulation fill the attic space at least 15 inches high with insulation.
Cut fiberglass batts to fit tightly between floor joists.
Blow in insulation until the hopper is empty.
Lay the fiberglass batt between the joists with the paper vapor barrier facing down toward the heated space.
A properly done spray foam job not only insulates but also greatly reduces the air leakage of.
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 how to on installing certainteed s insulsafe sp and truecomfort blown in fiber glass insulation into attic applications including application techniques.
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.
Once you deal with the air up there this problem goes away with or without the insulation in the attic floor.
Roll the sheets out and cut them perpendicular.
Spray foam insulation is an incomplete name.
Both can be added to uninsulated attics or layered over existing material.
Spray foam insulation is a great product.
When you reach a wall pull the insulation back over a joist lay a level over the insulation and cut across the level.
Blown in spray foam batts and blankets.
Loose fill or batt the common term for blanket insulation.
The pros often use spray foam insulation or blow shredded insulation.
Move across the attic until you ve hit your desired height at every point.
If installing fiberglass mats start by laying the mats at the furthest point from the attic access.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
This type of insulation is ideal for attics with standard spaced beams and joists and very few obstructions.
To get a better air seal.
For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6.