SPRAY FOAM INSULATION
Spray foam insulation is a product that is applied by certified installers using specialized equipment. The two most common types of spray foam used in buildings are open-cell (OCSPF) and closed cell (CCSPF). Choosing what type of spray foam to use depends on both the application and the budget. The primary benefits of spray foam insulation are that it can act as both a thermal barrier and an air barrier when properly designed and installed.
Open Cell spray foam is an economical spray foam solution, ideal for main living space walls, as well (due to the open cells) this foam can create an excellent sound barrier between interior walls and/or floors. Open Cell spray foam becomes an air barrier, eliminating drafts that can exist with traditional batt insulation. With Open Cell spray foam, you will still require the installation of a vapour barrier.
Closed Cell spray foam is a premium solution with many applications. All exterior walls, basement walls, cathedral ceilings, exterior applications, and more. With an R value of greater than 6 per inch, Closed Cell spray foam reduces the amount of material required to increase your homes insulation, and after just 2" the Closed Cell foam becomes an air and vapour barrier.
Batt insulation is the most commonly found insulation in homes. It comes bagged in pre-cut lengths and widths which the installer places manually into the wall cavity. Batting insulation is not an air barrier and requires a vapour barrier be installed on the warm side of the buildings envelope to resist moisture movement. The two most common batting insulation types in our climate are Roxul and Fibreglass. The primary benefits of batt insulation are it’s upfront affordability, wide availability and sound dampening properties.
Loose fill cellulose insulation is made from 100% recycled newsprint and board stock. The paper is shredded and pulverized into small particles that are blown into wall and ceiling cavities. Loose fill cellulose insulation is commonly used in attics and for retrofitting the exterior walls of older homes. Loose fill cellulose can also be used in new wall construction by installing netting/screening across the wall to hold the insulation in place.
Loose fill fiberglass insulation consists of molten glass that is spun or blown into fibers (think cotton candy). Most manufacturers use 20%-70% recycled glass content in the mix, making fiberglass a partially recycled product. Loose fill fiberglass insulation is applied using a similar insulation blowing machine, and can be used for both open and closed cavity applications. One benefit of loose fill fiberglass over cellulose is that it does not settle over time.
Wetted fibreglass insulation offers smaller fibers to fill tight spaces around pipes, wires, electrical boxes and other wall cavity obstacles. While comparable in price with traditional insulation, the wetted solution fills the wall cavity and removes the manual installation, while insualting the wall just as well.