It s often used over existing insulation in the attic where moisture control isn t needed.
Attic drop ceiling insulation.
Ensure conditioned attic insulation strategy is compliant with local.
Work from the perimeter of the attic toward the door or hatch so that you don t trample all over the insulation you just put in.
Inspecting your attic insulation first things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
Ensure insulation extends to the outside edge of the exterior top plates and to the peak of the cathedral ceiling.
An easy step by step instructional video on how to properly insulate a ceiling brou.
Things you ll need hanger wires electric drill wire cutters tape measure fiberglass batt insulation scissors or knife chair or stepladder gloves dust mask safety glasses.
Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and to prevent thermal bridging the heat loss that occurs through the wood framing.
R value is a measure of insulation s ability to resist heat traveling through it.
Insulation level are specified by r value.
This type of insulation.
Ensure ends of insulation are butted together and flush to underside of framing.
In most parts of the country an r38 layer of insulation or about 10 to 14 inches of fiberglass batts is enough.
It helps resist moisture that can lead to mold or mildew and provides increased sound and thermal insulation.
The higher the r value the better the thermal performance of the insulation.
Before you install more insulation seal any air leaks that could let attic air flow to your ceiling.
In a region with cold winters you might need up to an r60 layer or around 20 inches of fiberglass batts.
Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.
Friction fit insulation between and parallel to the attic framing members.
Blanket insulation is available as batts or rolls and is the easiest diy insulation material.