Batts Over The Plywood Attic Floor

Plywood floor in attic of older home.

Batts over the plywood attic floor.

Because the simplest and cheapest way to insulate an attic is to add material to the floor. To install fiberglass batts over existing insulation lay the batts perpendicular to the joists so they do not compress the insulation below. Whether you live in a warm weather state as i do or in a cooler northern climate it s hard to stay comfortable and keep your energy bills in check if you don t have adequate insulation in the attic. In either case the idea is to make up for the crushing of the.

Most floors are framed with 2 by 10s and require r 38 insulation. 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 light storage you can install inch plywood or. 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. It isn t but you ll need a dose of common sense to execute the job of installing an attic floor properly.

This can either be done with unfaced batts or blown in insulation. How to install plywood flooring in an attic. How to lay attic flooring on top of fiberglass insulation. I would like to lay a plywood floor in my attic and want to know if i can just lay fiberglass batts over the loose fill fiberglass that s up there now.

The solid base. Heat rises so the insulation in your attic is the most important part of your home s insulation. With all these challenges you might start thinking that attic flooring installation is impossible. Start with the attic floor.

The decision regarding the thickness of plywood to use for the subfloor in the attic has a lot to do with how you intend to use the attic and it also. What size plywood for an attic floor. But you know i would rather see you just sort of map out the area in the center of the attic that you re going to use for storage and fill up the rest with insulation because that. Rolls are preferred over batts because they come in longer lengths which often allow you to run continuous strips across the entire length of the floor.

Stop using your attic for storage. Attic flooring consists of materials as basic as sheets of plywood as well as more elaborate interlocking floor systems. What you could do is you could put insulation down in the floor joist first then plywood over it and then you could add another layer of unfaced on top of that.