When it comes to insulating ceilings, block insulation is the best choice. This type of insulation is pre-cut and usually made of fiberglass, although versions of cellulose, mineral wool, natural fibers and plastic are also available. With an R value of 3.7 per inch, it provides more protection than any other type of built-in insulation. Cellulose is the best option for loose fill insulation, as it has an R value of 3.7 per inch.
When it comes to walls, spray foam insulation is the most effective in terms of heat flow resistance. Loose-fill insulation, also known as cellulose, is a form of blow insulation used in attic floors and other horizontal structural spaces. Reflective insulation reflects heat away from the house to prevent heat build-up and the transfer of radiant heat to cooler indoor surfaces. Insulating concrete blocks refers to the process of filling the voids in an existing concrete wall or of covering the outer or inner surface with insulation.
The North American Insulation Manufacturers Association recommends fiberglass or mineral wool for insulating attics. Fiberglass insulation for loosely filled attics is still experiencing convection, but not as much as old fiberglass used to have. Blow insulation is applied with a machine that blows a paper-like material into the space to be insulated. Structural panel insulation has a much longer lifespan than types of insulation that are applied separately.
Customers are often drawn to these insulating materials because they are fire resistant and easy to install without the help of a contractor. You may need to hire a contractor or roofing or insulation professional to help you with the application process, but the extra cost and versatility of this type of insulation are well worth it. The Cellulose Insulation Manufacturers Association recommends cellulose as the best choice for insulation. There are also different types of barriers that can be part of an insulating product or sold and installed separately to increase heat and vapor transfer through a wall assembly.
The most effective way to insulate an attic does not always coincide with the most cost-effective way.