How To Spray Insulation In An Attic

Then pivot in place and do the same thing to the other side.

How to spray insulation in an attic.

Earlier this year i got a question about a home that had spray foam insulation in the attic. Blow in insulation until the hopper is empty. So your installer can apply insulation to the ceiling in addition to the rest of your attic for added protection. Whereas too little spray foam insulation can leave for thermal bypass because of the complete lack of insulation in the attic.

We mean that literally by the way. For loose fill read labels. Move across the attic until you ve hit your desired height at every point. When you insulate the top of your attic with spray foam you re bringing your attic into your home s envelope as a result you can reduce the temperature in your attic by a lot anywhere from 120 degrees to around 95 during peak summer.

Nothing unusual about that. That gives you the chance to maximize your energy bill savings while spending the least on the project. A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents. The best part of using foam it green spray foam on an attic floor is you only need 1 inch cured thickness to seal the living spaces you use from the attic.

Installing insulation attics one of the high tech insulation products being utilized these days is a foam spray product called icynene which is a foam that starts as two liquid components a and b if you will that are heated up and sent through two hoses and meet at a tip of a gun where the magic begins. For batts or rolls calculate the number based on the width and length of the product you re using. Spray foam insulation sticks to whatever surface you spray it to. Each bag lists the required depths for a range of r values and the number of bags needed to cover 1 000 square feet at those depths.

For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6. It has been said that insulating with spray foam insulation at the roof line will lead to moisture problems with the roof sheathing. Spray foam insulation is a great product. Measure your attic s square footage.

Moisture is also another huge issue when it comes to spray foam insulation in an attic. I ve been in plenty of these homes and can tell you that when spray foam is installed properly they outperform 99 of fiberglass batt insulated stick built homes. Attics with spray foam insulation are so cool. Then you can use other forms of insulation like fiberglass or cellulose to add r value now that you have a tight air seal.

A how to on installing certainteed s insulsafe sp and truecomfort blown in fiber glass insulation into attic applications including application techniques.