Installing Attic Insulation Over Existing Insulation

See below for a shopping list and tools subscribe to this old house. Cost effective way to save energy with this old house general contractor tom silva. Faced insulation should not be placed on top of existing insulation in the attic.

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Choose your insulation type.

Installing attic insulation over existing insulation.

Before installing determine the insulation material best suited for your home. The hole is then. Install fiberglass batts over existing batt insulation. Measure how much insulation you already have.

Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all. Check pipes and vents. 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. Over the insulation install laying foil over on top of insulation on the attic floor this is probably the easiest method to install radiant barrier atticfoil is to lay the foil out over the existing insulation on the attic floor.

Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face. To view the next video in this series click here. This method can be used in any climate though it historically has been most popular in colder climates. Calculate how much you need.

Put on goggles and gloves to protect yourself while handling. To install fiberglass batts over existing insulation lay the batts perpendicular to the joists so they do not compress the insulation below. The vapor retarder on top of or between layers of insulation can trap moisture. Check the depth using a tape measure.

How do i add insulation to existing attic insulation. 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.

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