Best Insulation For Attic Roof

Insulating the attic floor.

Best insulation for attic roof.

Installing attic roof insulation instead of attic floor insulation has several benefits. Insulating in and around your roof attic space also prevents long term damage from moisture build up or ice damming which results from the warm air trying to escape through the apex of the roof but instead heating up the snow. So insulating the floor of the attic is not only the best solution but it is also the simplest and cheapest. A layer of rigid insulation board can be added either on top of the roof s weatherproof layer or directly on top of the timber roof surface with a new weatherproof layer on top of the insulation.

So it s time to pay close attention to what s happening up there. Attic insulation plays a critical role any home s overall comfort and energy efficiency. Among commonly used types of insulation there are mineral wool or fiberglass rolls and batts rigid fiberglass board loose fill materials cellulose mineral wool etc. At the same time the areas below the roof benefit from increased comfort both during the winter and the summer.

Before you ever get insulation anywhere near the attic though make sure that you get the air leakage sites sealed up. With a finished attic insulation must help keep the attic areas comfortable. On the attic floor or beneath the attic roof. It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow.

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. This is best done when the roof covering needs replacing anyway. Rolls and batts are produced of mineral wool and fiberglass. That means insulating the attic floor only not the walls and having vents in the roof.

It can be installed in one of two places. Box out light fixtures. If you do not use the attic much it is pointless heating this area. Insulation level are specified by r value.

A flat roof should preferably be insulated from above. R value is a measure of insulation s ability to resist heat traveling through it. The table below shows what levels of insulation are cost effective for different climates and locations in the home. Water is insulation s enemy.

Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer. If you put an air permeable insulation material over a hole in your ceiling you may have comfort indoor air quality durability and efficiency problems. A finished attic should be insulated much like the rest of the house with insulation in the walls and ceiling. How to insulate a finished attic.