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Insulating attic for storage.
Insulating a finished attic there are two basic ways to insulate a finished attic.
Since an average attic needs 16 inches or more of insulation the insulation is always thicker than the ceiling joists or trusses.
Attics are great for storage but flooring directly over the attic floor joists doesn t provide room for the recommended 12 to 16 of attic insulation needed to keep your house cool in the summer and warm in the winter.
Lastly your home s energy efficiency almost always suffers when the attic is converted for storage.
Attic floor joists are 2 4 with blown insulation which is spotty in areas meaning none.
If you would like to use the attic for storage it is best to cover the insulation with some sort of boarding such as oriented strand board such as smartply boards.
The temperature for attic storage if your house is insulated there s a good chance that the attic is outside of the home s thermal envelope the boundary of insulation surrounding the heated cooled living space.
Roof rafters are 2 6.
If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor.
If so don t store temperature sensitive items in your attic.
The attic floor which is the ceiling of the living space below often already is insulated.
In this case the area behind the knee wall will be uncomfortably hot or cold.
There are insulation boards on the market that have this finish.
Installing attic flooring for light storage only if your attic joists won t bear the weight necessary to finish out a living space but the engineer cleared them to support floor decking for light.
If it is and you plan to provide heating and cooling to the finished attic space you need to remove.