Seal gaps that allow unconditioned air into the space you re insulating.
How to insulate attic space.
Blow in insulation until the hopper is empty.
See do it yourself spray foam insulation and how to caulk.
Installing a vapor barrier.
Move across the attic until you ve hit your desired height at every point.
If the air distribution is in the attic space then consider insulating the rafters to move the distribution into the conditioned space.
Place planks 1 by 6 or 1 by 8 or plywood sheaths across floor joists to improve.
Then pivot in place and do the same thing to the other side.
Pay attention to areas where plumbing ductwork or wiring enter the space.
1a attic access door 2.
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.
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.
How to insulate an unfinished attic preparing an attic for insulation.
The average home needs up to 19 inches of fiberglass insulation in the attic for maximum energy efficiency.
This old house general contractor tom silva and host kevin o connor demonstrate the proper way to insulate an attic.
See below for a shopping list and tools.
To install insulation.
Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and.
Check your local building code for r value insulation level recommendations and any vapor barrier requirements that apply to your area.
Batts and blankets insulation often comes with a vapor retardant facing and some varieties.
For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6.
Lay a two by four on top temporarily compressing the insulation to a manageable.
In unfinished attic spaces insulate between and over the floor joists to seal off living spaces below.