Installing Attic Insulation Over Existing Insulation
Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
Installing attic insulation over existing insulation. See below for a shopping list and tools subscribe to this old house. Measure how much insulation you already have. Before installing determine the insulation material best suited for your home. Install fiberglass batts over existing batt insulation.
Faced insulation should not be placed on top of existing insulation in the attic. How do i add insulation to existing attic insulation. Choose your insulation type. Calculate how much you need.
The vapor retarder on top of or between layers of insulation can trap moisture. To install blown in insulation in existing walls holes are drilled at the top of each stud space usually on the exterior and material is blown in via a long flexible hose. 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. This method can be used in any climate though it historically has been most popular in colder climates.
Check the depth using a tape measure. Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face. To install fiberglass batts over existing insulation lay the batts perpendicular to the joists so they do not compress the insulation below. Cost effective way to save energy with this old house general contractor tom silva.
Put on goggles and gloves to protect yourself while handling. The hole is then.