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