Diy Cellulose Insulation Walls

Diy cellulose insulation first you ll want to seal all air leaks where anything comes through the bottom or top of the area whether it s an attic or crawlspace.

Diy cellulose insulation walls.

Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts. Unfortunately however builders didn t insulate the walls of most homes built before the 1980s. 3 use a 1 1 8 inch diameter spade bit to drill a hole through the wall sheathing where the shingle was removed. Next you ll mark where the insulation will go and figure out the square footage.

1 locate two adjacent wall studs on an exterior wall. 2 use utility knife to remove a shingle from the bottom of the wall. Now put metal flashing around fixtures vents and places that can generate heat to protect them. Cellulose insulation is thick dense and clumpy with a consistency much like down feathers.

With boric acid added for fire resistance shredded recycled telephone books tax forms and newspapers all contribute to making safe cellulose insulation blown in cellulose is injected into the wall cavities by a series of holes drilled into either the inside or outside of the walls. The chief value of this shape and size is that the insulation can fit in enclosed areas such as walls and can conform around obstructions such as wires and ducts found both in walls and in attics. Cellulose blown in ceiling insulation is a good choice for diyers. 4 check for studs using a straightened wire coat hanger.

Insulation in house exterior walls is one of the primary defenses against heat and energy loss.