Blowing Insulation In Walls From Attic

With no shortage of companies offering blown in cellulose competition keeps prices lower for this type of insulation.

Blowing insulation in walls from attic.

Blow in the new insulation. You can rent insulation blowers but some stores provide the machine at no charge when you purchase your insulation from them. By far the easiest way to add insulation to a completed home with the walls and ceiling already closed up is to blow insulation into the attic. We include blown in attic insulation pros and cons but we can t recommend blown in fiberglass or cellulose as your best insulating choice.

Blowing in attic cellulose is conceivably a do it yourself job. While the process is fairly straight forward some upfront preparation is necessary. Install or repair vent chutes. Blowing insulation into walls is best left to the pros because it involves drilling into stud spaces that may contain electrical.

Blown in insulation flows down around wall studs. Blown in insulation in the attic seal attic bypasses. Consider hiring a wallboard contractor to repair the holes. Materials can be layered for added protection.

Of course this creates a serious mess indoors and requires extensive patching and painting of drywall. Pull back the existing insulation and use expanding spray foam the fire blocking type to seal any. The average cost of blown in insulation to achieve an r value of r 38 r 49 is 1 665 with most homeowners spending between 874 and 2 156 or 1 59 per square foot. Blown in insulation cost when you need to add insulation to an attic crawl space or walls of a home the fastest and most cost efficient method is to use blown in insulation.

Pull the existing insulation away from the roof. Repair the holes and clean up the mess. Insulation fibers are packaged in bags and blown in place to the desired depth and density using special machinery you can rent from a home center. Handy homeowners can install blown in insulation in the attic.

Cellulose or fiberglass are commonly used as blown insulation. Blown in fiberglass is considered flame resistant. You can pour the fill in place and spread it manually but the process is much more labor intensive and the results won t be nearly as good. Blowing insulation into walls from inside the house basically involves the same procedures but instead of removing siding holes are cut through the drywall with a large hole saw.