Insulate Roof With No Attic Space

Since your home s heating and cooling system usually does not extend into the garage insulating this area does little to change the cost of running the system.

Insulate roof with no attic space.

Works well costs more. If you put cellulose up there it will help insulate but you need a vapor barrier above the ceiling because you ll have warm ceiling air hiiting colder roof surface and condensing which will turn the cellulose into a moldy mess. 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. With 2x6 rafters this will give about an r 19 roof higher if you use thicker solid foam insulation.

If you do not use the attic much it is pointless heating this area. Effects of insulating the garage attic. Insulating the attic floor. An attic you want vented but in your case you want the ceiling roof space sealed.

This gives the best air path eaves to ridge but costs more for the labor to nail furring and cut insulation into pieces to fit between rafters. It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow. You may also insulate your roof to help regulate the temperature in an attic that is a part of your living space. Fill the remaining space with fiberglass or cellulose.

So insulating the floor of the attic is not only the best solution but it is also the simplest and cheapest. By laurie brenner homes with flat roofs require a different approach to insulation than the standard approach used for homes with pitched roofs. Box out light fixtures. In practical terms you can choose between mineral wool or insulation boards.

Insulating the roof is a priority if the ceilings of your home happen to be part of the roof deck as is the case with cathedral ceilings. Water is insulation s enemy. The general answer to the question of whether insulating a garage attic will lower energy costs is no at least not appreciably. Materials commonly used for the insulation of the roof deck include.