Laying Insulation On Attic Floor

If your attic floor has no insulation install faced batts or faced rolls between each joist with the moisture barrier facing down against the drywall or plaster ceiling below.

Laying insulation on attic floor.

They have floor joists or the bottom chords of roof trusses with drywall below. If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top. Installing attic flooring for light storage only. Plan to pull up the flooring and layer new.

Attic flooring consists of materials as basic as sheets of plywood as well as more elaborate interlocking floor systems. The solid base. To install insulation batts and blankets. To floor an attic you ll need to install a sub floor for support before laying your plywood floor.

Begin at a wall and work toward the center of the attic floor or the entryway carefully placing insulation between joists and ensuring a snug fit. You ll have to construct a wooden frame or sub floor with boards 16 inches apart to provide extra support for the floor. If using insulation with a vapor retardant facing install the material with the vapor retardant side down. When you are in the attic you re usually stepping carefully on top of the floor joists looking down at the back side of the drywall.

But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates. To lay loft roll insulation. Attic dek flooring is an easy to install floor option that provides additional storage space supporting up to 250 lbs. Stop using your attic for storage.

How to lay attic flooring on top of fiberglass insulation. Run the unfaced strips perpendicular to the. Raise ceiling joists also if the attic insulation is thicker than your ceiling joists you can raise the height of the joists to above the insulation by attaching 2 3 s to their top edge before you attach the attic floor. If your attic joists won t bear the weight necessary to finish out a living space but the engineer cleared them to support floor decking for.

Pen and paper to note how much existing loft floor insulation you currently have joist sizes and spacing if needed. Specifically made for the thermal upgrade of loft spaces at ceiling level. Because the simplest and cheapest way to insulate an attic is to add material to the floor. Start with the attic floor.

First you ll need to measure the area you want to floor so you can calculate how much wood you ll require. Although it s common to talk about installing insulation on the attic floor most attics don t really have a floor.