In unfinished attic spaces insulate between and over the floor joists to seal off living spaces below.
How to insulate attic space.
For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6.
To cut blanket style insulation place the product over a piece of plywood with its paper or foil side down.
Attic insulation is installed in the floor of the attic so you ll need to do a few things to make the process straightforward.
Move across the attic until you ve hit your desired height at every point.
Installing a vapor barrier.
Seal gaps that allow unconditioned air into the space you re insulating.
Blow in insulation until the hopper is empty.
If the air distribution is in the attic space then consider insulating the rafters to move the distribution into the conditioned space.
Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and.
See below for a shopping list and tools.
Check your local building code for r value insulation level recommendations and any vapor barrier requirements that apply to your area.
Place planks 1 by 6 or 1 by 8 or plywood sheaths across floor joists to improve.
If the space requires additional insulation an easy fix is to place insulation batts or rolls in the attic s floor joists on top of any existing insulation.
Lay a two by four on top temporarily compressing the insulation to a manageable.
See do it yourself spray foam insulation and how to caulk.
1a attic access door 2.
This old house general contractor tom silva and host kevin o connor demonstrate the proper way to insulate an attic.
Start by installing temporary lighting such as clip lights and laying a few sturdy boards along the joists to create a walkway.
To install insulation.
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.
The average home needs up to 19 inches of fiberglass insulation in the attic for maximum energy efficiency.
Then pivot in place and do the same thing to the other side.