Does Blown In Insulation Work

Especially in older homes wall cavities may have obstructions such as electrical conduit fire blocks and plaster keys that prevent insulation from filling the cavities.

Does blown in insulation work.

This type of insulation is able to be blown in parallel to joists in order to fill in the empty space. Blow in insulation is not a perfect solution for walls. Blown in insulation flows down around wall studs. Blown insulation settles over time becoming less effective.

Keep in mind that installing insulation around electrical wiring or outlets will likely require the help of a pro. After a few years blown in insulation tends to settle downward by a few inches which slightly reduces its overall thermal resistance known as r value because it leaves a small section at the. Blown insulation contains air pockets trapped between pieces of insulation during installation. Blown in fiberglass is considered flame resistant.

The material can be either fiberglass or cellulose and consists of fiber foam or other materials in small particles and can even feel like down. Insulation efficiently fills gaps. Expect to pay more for projects that require a higher r value or thicker insulation. Cellulose blown in ceiling insulation is a good choice for diyers.

Just about any electrician plumber or contractor who has worked in an attic full of blown fiberglass will preach his words of hate and despise for what he simply refers to as blown insulation but he s making a big mistake. Blown in cellulose is a last resort method of insulating a building. Acoustical drywall will cost in the. It is also able to be blown indirectly over the top of existing insulation as an added layer.

A blown in insulation job requires two people one to keep the blower full and working and the other to work the hose in the attic. Not all blown insulation is made of fiberglass. Blown in insulation also called loose fill runs from 1 to 1 5 per square foot. It doesn t do very good but require much less investment in time and disruption.

But the important task of preparing the attic is something you can handle on your own. Materials can be layered for added protection. Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts. Good technicians will have techniques for getting around these obstructions.

Labor cost of blowing insulation. We include blown in attic insulation pros and cons but we can t recommend blown in fiberglass or cellulose as your best insulating choice.