R-value is the measurement of an insulation material’s resistance to heat. Generally the higher the R-value of an insulation material the better it is. Different insulation materials have different R-values.
For instance, cellulose has an R-value that ranges between R-3.12 and R-3.8, fiberglass batts have an R-value between R-2.9 and R-3.8, open cell spray foam has an insulation R-value that ranges between R-3.6 to R-3.9 whereas closed cell spray foam insulation that ranges between R-6 to R-seven.
How much R-value you need depends on the place and climate where you live. For instance, colder places have higher R-value requirements than warmer places. Different factors can affect the R-value of insulation. It is understood that the more layers of insulation you have, the higher your R-value will be. The method in which the insulation is installed, outside temperatures, and the type of insulation that you choose, all affect the R-value. If your insulation material is not installed properly, heat loss will still take place through air movement.
Keep in mind that when it comes to insulation in Allegan, R-value is not the only important factor in its effectiveness. In addition to achieving the right R-value, creating an air seal is more important regardless of whether you use open cell or closed-cell foam insulation. Sometimes a thermal barrier is needed in addition to spray foam insulation to create a complete air seal.