How To Blow Insulate Your Attic

Step 4 cover the lights.

How to blow insulate your attic. In general an attic s r value should be between r 30 and r 49. Fasten blocking around the hatch or door to allow the material to be installed around this area without escaping. Step 1 gather your equipment. How to blow insulation in attic step 1.

Install or repair vent chutes. Blowing insulation requires a special machine to break down the insulation into tiny pieces and blow it through a long hose. Seal all air gaps in your attic. Blown insulation both cellulose and fiberglass comes in bags and is available at most home and hardware stores.

To make it easy to eyeball how level the material is as you blow it in screw depth guides to joists throughout the space. Step 3 protect the soffits. Position the new vent chute so the. Use spray foam for large gaps and caulk for small spaces.

Inspecting your attic 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. Gather safety attire and equipment. Make sure the fill s depth is uniform across the attic.

To insulate an attic get some batting made out of mineral wool fiberglass or recycled foam. Prepare to blow insulation into your attic. Step 2 measure your space. You ll want to buy enough batting to lay at least 10 to 14 inches over the entire space.

Pull back the existing insulation and use expanding spray foam the fire blocking type to seal any. Your home s r value score will guide you toward the type of insulation you need. Additionally purchase some loose fill insulation to insulate corners and angles where the batting won t fit. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.

In particularly cold climates you might go up to r 60. Pull the existing insulation away from the roof. Wear a dust mask goggles work gloves long sleeves and pants.