Attic Insulation Layers

The best approach for a vented attic in a cold climate is installing a layer of drywall with a good coat of latex paint the paint creates a semi permeable vapor barrier.

Attic insulation layers.

Although installing insulation in an unheated attic is usually a fairly straightforward job a variety of pitfalls await the unwary. Blown in insulation consists of bags of fiberglass or cellulose that are chopped up and blown in to the attic or wall from a machine. You can achieve better thermal performance in your attic by adding an additional layer of insulation. Plan to pull up the flooring and layer new insulation on top of the old.

So with cold weather. Because of this this method will normally require you to hire a professional. A guide to proper attic insulation. Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.

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. Because the simplest and cheapest way to insulate an attic is to add material to the floor. The insulation fiberglass or cellulose is then placed on top of the drywall with no vapor barrier above or below.