Determine your desired r rating.
How to insultate attic.
Stack insulation batts on top of the duct tape so they extend about 1 in.
Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and.
More insulation installation tricks and tips work from the perimeter of the attic toward the door or hatch so that you don t trample all over the insulation you just.
There are different ways to accomplish this.
Lay the batts across the ceiling joists covering the existing insulation.
This creates an insulated attic access door.
To install insulation.
Place planks 1 by 6 or 1 by 8 or plywood sheaths across floor joists to improve.
Position the new vent chute so the.
To cut blanket style insulation place the product over a piece of plywood with its paper or foil side down.
Check for air leaks and wood stops.
Installing a vapor barrier.
Batts and blankets insulation often comes with a vapor retardant facing and some varieties.
Materials and preparation 1.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.
Install or repair vent chutes.
You can check for air leaks with a lit incense stick or a thin piece of toilet paper.
The r rating of insulation shows how effective it is.
Blown in insulation in the attic seal attic bypasses.
Pull the existing insulation away from the roof.
If there are indications of erratic air movement coming from your attic hatch replacement weatherstripping is necessary.
A higher r rating is more.
Then secure the pillow with the duct tape.
How to insulate an unfinished attic preparing an attic for insulation.
While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.
Choose your insulation material.
Pull back the existing insulation and use expanding spray foam the fire blocking type to seal any.
Add the right kind of insulation when adding additional insulation you do not have to use the same type of insulation that currently exists in your attic.