Double Insulation In Attic

Loose fill or batt the common term for blanket insulation.

Double insulation in attic.

Both can be added to uninsulated attics or layered over existing material. Share this story via email. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. A tip for doubling up on attic insulation.

In my attic i currently have usg thermafiber insulation in the 5 75 6 75 between joists with 9 unfaced fiberglass batts on top. Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49. Below the joists is 1 5 16 center to center supporting lathe and plaster for ceiling below i am trying to create some walkways and storage space by placing boards on top of the joists. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

For diy attic insulation you ve got two choices. So it s time to pay close attention to what s happening up there. In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment. Improper installation can damage attic framing promote mold.