Best Rigid Insulation For Attic

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

Best rigid insulation for attic.

The superattic system creates a continuous air and insulation barrier directly beneath the attic roof with no thermal bridging to compromise energy. Rigid foam insulation. It is often used as a layer of continuous insulation on exterior walls and in the roof. The superattic system utilizes proprietary silverglo rigid foam insulation panels to fully seal and insulate the attic directly beneath the roof rafters and directly inside the gable ends.

Rolls and batts are produced of mineral wool and fiberglass. Rigid foam insulation packs a lot of r value into a relatively thin package. Rigid foam like the silverglo insulation from dr. The most common materials include expanded polystyrene similar to styrofoam extruded polystyrene and polyisocyanurate.

It s a good choice for. 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. The best insulating rigid foam. Both can be added to uninsulated attics or layered over existing material.

When used as attic roof insulation rigid foam can be installed between attic rafters directly beneath attic rafters or in both locations. Rigid foam offers a high r value per inch of thickness and can be cut to fit almost any space. So it s time to pay close attention to what s happening up there. 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.

Used in this way the foam lowers the loss of energy through framing members a phenomenon called thermal bridging and increases the overall r value of the roof or wall assembly. Foam boards rigid panels of insulation can be used to insulate almost any part of your home from the roof down to the foundation. Energy saver comes in panels or sheets of different thicknesses. Rigid foam comes in 4 x 8 foot sheets and thicknesses of 1 2 inch to 4 inches.

Rigid foam insulation offers as much as double the r value of traditional fiberglass batts according to the united states department of energy. Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer. Loose fill or batt the common term for blanket insulation. They are very effective in exterior wall sheathing interior sheathing for basement walls and special applications such as attic hatches.

For diy attic insulation you ve got two choices.