Double Insulation In Attic

Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49.

Double insulation in attic.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Loose fill or batt the common term for blanket insulation. Improper installation can damage attic framing promote mold.

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. In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment. In my attic i currently have usg thermafiber insulation in the 5 75 6 75 between joists with 9 unfaced fiberglass batts on top. Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.

So it s time to pay close attention to what s happening up there. A tip for doubling up on attic insulation. For diy attic insulation you ve got two choices. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.