How To Blow Insulate Your Attic

Both lowe s and the home depot offer free rental machines with a minimum purchase of the insulation usually about 250.

How to blow insulate your attic.

In general an attic s r value should be between r 30 and r 49. Step 2 measure your space. In particularly cold climates you might go up to r 60. Prepare to blow insulation into your attic.

Pull back the existing insulation and use expanding spray foam the fire blocking type to seal any. Additionally purchase some loose fill insulation to insulate corners and angles where the batting won t fit. Step 4 cover the lights. Use spray foam for large gaps and caulk for small spaces.

Seal all air gaps in your attic. To insulate an attic get some batting made out of mineral wool fiberglass or recycled foam. Blown in insulation in the attic seal attic bypasses. 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.

Make sure the fill s depth is uniform across the attic. Gather safety attire and equipment. Blowing insulation into your attic is a fast and easy way to save money on your energy bills. Install or repair vent chutes.

Your home s r value score will guide you toward the type of insulation you need. Blown insulation both cellulose and fiberglass comes in bags and is available at most home and hardware stores. Wear a dust mask goggles work gloves long sleeves and pants. You ll want to buy enough batting to lay at least 10 to 14 inches over the entire space.

Blowing insulation requires a special machine to break down the insulation into tiny pieces and blow it through a long hose. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. Step 3 protect the soffits. To make it easy to eyeball how level the material is as you blow it in screw depth guides to joists throughout the space.

Fasten blocking around the hatch or door to allow the material to be installed around this area without escaping. Step 1 gather your equipment. Pull the existing insulation away from the roof.