CertainTeed Learning Center: Insulation

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Installation: Loose-Fill Insulation

Although you can rent a blowing machine from lumberyards and install loose-fill insulation yourself, CertainTeed recommends that you hire qualified professionals.

In an attic, installation of blown-in insulation includes these steps:

Run a hose from the blowing machine through any available attic opening.
Blow insulation in the direction of the joists, keeping the hose close to the floor.
To achieve the desired R-value, the insulation must be installed to the manufacturer’s recommended minimal thickness using the recommended number of bags.

See the TrueComfort Installation Guidelines video.

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