Double Insulation In Attic

For diy attic insulation you ve got two choices.

Double insulation in attic.

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. Both can be added to uninsulated attics or layered over existing material. Some attic floors that already have a layer of insulation could benefit from an additional application over the existing layer. Share this story via email.

Improper installation can damage attic framing promote mold. So it s time to pay close attention to what s happening up there. If you don t provide air space this product provides almost no insulating value. An r 1 1 is provided from the product itself for the reflective double bubble material.

Folding and compressing the material changes the r value. 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. 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. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. 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. Loose fill or batt the common term for blanket insulation. Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.

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. Don t compress insulation or double it over. The extra batting increases r values so it further slows warm air. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.

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. The rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit.