Attic Insulation New Construction

After the foam is cured loose fill fiberglass or cellulose insulation gets installed on top of the foam.

Attic insulation new construction.

Spray foam while the most expensive is best for noise reduction and new construction. Both can be added to uninsulated attics or layered over existing material. R value is a measure of insulation s ability to resist heat traveling through it. For diy attic insulation you ve got two choices.

Insulation level are specified by r value. A cost effective way to use foam insulation is to foam the lid of the house then use loose fill insulation on top. Insulation is essential in ensuring a building is energy efficent and able to regulate temperature control. The higher the r value the better the thermal performance of the insulation.

First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live. This means installing spray foam to a depth of at least 2 on the entire attic floor to completely seal everything up. Spray foam is the most expensive but is the most popular choice for newer homes and new construction.

Loose fill or batt the common term for blanket insulation. Blown in insulation is the least expensive option and is the most popular choice for old attics. You should consider attic or roof radiant barriers in hot climates reflective insulation and foundation insulation for new home construction. Why insulation is mandatory for new construction as a construction contractor you want to offer your clients the very best.

The table below shows what levels of insulation are cost effective for different climates and locations in the home. Typically this is done either by placing batt or roll insulation in between the ceiling joists or by using a blower to blow loose fill insulation in between the joists. The best approach for a vented attic in a cold climate is installing a layer of drywall with a good coat of latex paint the paint creates a semi permeable vapor barrier. Expect to pay an attic insulation installer about 70 per hour.

Check with your contractor for more information about these options. When installing attic insulation there are a few options to choose from. The insulation fiberglass or cellulose is then placed on top of the drywall with no vapor barrier above or below. Once the old insulation has been removed and the attic is cleaned the installation of the new insulation can begin.