Attic Insulation Layers

Plan to pull up the flooring and layer new insulation on top of the old.

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. The higher the r value the better the thermal performance of the insulation. 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. Fire resistant attic insulation fire resistant attic insulation is a layer of fiber that reduces the risk of fires starting in the attic while at the same time decrease the energy demands of heating and cooling systems.

Because of this this method will normally require you to hire a professional. Because the simplest and cheapest way to insulate an attic is to add material to the floor. 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. When it comes to insulating your attic there are really only two types of insulation worth considering fiberglass batts or blown in insulation.

A guide to proper attic insulation. The insulation fiberglass or cellulose is then placed on top of the drywall with no vapor barrier above or below. You can achieve better thermal performance in your attic by adding an additional layer of insulation.