Because the simplest and cheapest way to insulate an attic is to add material to the floor.
Best flooring for attic.
You can for instance use recycled materials.
1 x 6 3 spruce is a step up from pallet quality wood but makes a fine usable floor in an unfinished attic space.
What size plywood for an attic floor.
Installing attic flooring for light storage only.
Start with the attic floor.
Stop using your attic for storage.
Attic space offers many options for building storage or living space especially if you already have a well built basic flooring in place.
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.
You also need to ensure that the joist spacing is adequate.
It s possible to create a solid floor without investing a lot of money.
Partial attic flooring.
Attic joists that are made from 2x8s may be acceptable for building your attic floor but because every room is variable there are no absolutes.
Attic joists for live loads.
If you don t need additional storage think of flooring an area less than the entire attic such as a small section around the attic door opening.
For example if your attic is accessed through a hatchway or dropdown ladder you can install a few thin plywood panels across the joists or attic trusses within reach of the hatchway.
The best flooring for an attic by becky lower the right flooring can make your attic work as hard as the rest of the house.
First you ll need to measure the area you want to floor so you can calculate how much wood you ll require.
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.
Joist dimensions are only part of the equation.
You ll have to construct a wooden frame or sub floor with boards 16 inches apart to provide extra support for the floor.
11 32 plywood attic dek attic flooring panel attic dek plywood subflooring 3 8 plywood 1 2 plywood 4x8 related products universal attic dek 4 pack made for 16 in.
To floor an attic you ll need to install a sub floor for support before laying your plywood floor.
Plan to pull up the flooring and layer new.