Double Insulation In Attic

Folding and compressing the material changes the r value.

Double insulation in attic.

If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs. If you don t provide air space this product provides almost no insulating value. For diy attic insulation you ve got two choices. Both can be added to uninsulated attics or layered over existing material.

The extra batting increases r values so it further slows warm air. An r 1 1 is provided from the product itself for the reflective double bubble material. Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer. Some attic floors that already have a layer of insulation could benefit from an additional application over the existing layer.

So it s time to pay close attention to what s happening up there. In attic spaces an additional layer of un faced insulation usually r 30 can be installed on top of the insulation that is between the ceiling joists for an added layer of protection. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Insulation expands quickly when you open the packaging.

The rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit. Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter. In really cold climates a third layer of insulation either un faced r 30 or blown in cellulose can be installed on top of the first two layers. Loose fill or batt the common term for blanket insulation.

Improper installation can damage attic framing promote mold. Open insulation packages carefully and only as needed. I ve always said adding insulation to your attic is some of the best money you can spend to make your house more energy efficient but whether to use faced or unfaced insulation is a great question. A tip for doubling up on attic insulation.

Share this story via email. Once you ve filled a space with roll or batt insulation fluff it to its full expansion by pulling it forward to fill the cavity. Now here s a situation where a homeowner what looks like many years ago added insulation they added a three inch layer but.