How To Lay Insulation In Attic Floor

Cut the insulation to fit and gently press it up between the floor joists.

How to lay insulation in attic floor.

Place a 2 inch by 3 inch board. Hi kate it s not necessary to insulate attic walls because it s an unheated space. However if you keep the storage weight to a minimum you may be able to build a storage platform above the insulation by attaching supporting beams to the sides of the trusses. Put on work gloves safety glasses and a dust mask before entering the attic.

These are precut lengths of 14 gauge spring steel wire that are slightly longer than the space between the joists. If you re insulating framed walls make sure the insulation is the correct thickness for your wall studs. Fill every joist space completely and evenly with the insulation leaving attic vents uncovered. The idea is to keep the temperature inside the attic as close as possible to the outside air temperature.

With a helper to load the blower with insulation as needed start at the perimeter of the attic and work toward the attic access door. Walk to one end of the attic by carefully stepping only on the wooden ceiling joists. In crawlspaces and basements make sure there are no cracks in the foundation. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.

Secure the insulation using stay wires. Attic insulation between roof trusses. Even easier you can also use a prefabricated attic floor kit designed specifically to raise the attic floor above the insulation. If you re using faced insulation be sure the moisture barrier goes against the underside of the subfloor.

Lay the batts across the ceiling joists covering the existing insulation. Measure between joists if insulating a floor or attic or studs if insulating unfinished walls to find the correct width for the insulation. Level uneven spots with a rake.