Garage Attic Truss Insulation

Some do it yourselfers commonly forget to leave air space between the fiberglass and the underside of the wood roof sheathing.

Garage attic truss insulation.

When you should insulate the garage if your home s hvac system does extend into the garage then the attic above it should be insulated as it would for any other room of the house. You can buy insulation kits for standard metal garage doors or you can cut pieces of rigid foam insulation to fit each door panel section. Make sure that all of the pieces are the same size so that they fit into the trusses. It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow.

Even easier you can also use a prefabricated attic floor kit designed specifically to raise the attic floor above the insulation. Attic insulation between roof trusses. You should use some foil tape to make sure that the insulation is stable on the roof edges. The tape will also make sure that there is an air pocket available in the insulation.

However if you keep the storage weight to a minimum you may be able to build a storage platform above the insulation by attaching supporting beams to the sides of the trusses. In either case you will need to follow the general steps below to insulate your garage roof. The primary reason to insulate any part of the home is to provide a thermal barrier between conditioned heated or cooled interior space and the. That s the wall you see in one of the pics.

Insulating the attic above the garage will help keep temperatures in the garage a bit more stable but it won t have any appreciable effect on energy bills. Box out light fixtures. Don t insulate your garage walls and ceiling without insulating the big garage door too. Look for water stains on the roof sheathing or damp or moldy spots on attic joists and existing insulation as a clue to where leaks might be.

Keep in mind that the structural metal ribbing of garage doors is an excellent conductor of heat and this typically. To install the insulation overhead you need to staple the pieces to the roof trusses. Does a garage attic need to be insulated. If you have a flat garage roof and an attic above you can install the garage insulation from below using a standard ladder.

The garage is free standing not attached the previous owner used this property as a vacation rental and walled in one bay of the garage up to the trusses presumably for personal storage. To answer some of your questions. If you are insulating the garage ceiling not only by the truss level but also up by the roofline then you must leave at least 1 1 2 to two inches of air between the fiberglass and the underside.