The most common choice for home insulation is spray foam. The reason why the vast majority of people choose this thermal material is that it has a high degree of energy efficiency. Unlike other materials, such as fiberglass or cellulose, this product is able to reach small places, thus sealing all the voids. If you are contemplating the thought of using spray foam insulation for your residential building, you should know that that there are two main types: open-cell and closed-cell. Each one has both advantages and disadvantages, so deciding which type of Toronto spray foam insulation is not exactly simple. When choosing spray foam insulation, keep in mind the following facts.
Open-cell spray foam
Open-cell spray-applied plastic is somewhat vapor permeable. Vapor permeability refers to the capacity of the building material to resist the flow of moisture. Open-cell SPF retards the migration of water vapors to some point. However, attention should be paid to the fact it is not suitable for every application. For instance, in an area such as underneath the home, open-cell SPF will not work. It is not capable of providing the vapor barrier that this particular area requires. Additionally, if you are planning to insulate the attic, open-cell SPF may not be the best solution as it allows the water to pass. You can use open-cell SPF, but you need to add an interior vapor retarder as well. One of the advantages offered by open-cell spray foam is that it uses less material, so it will cost you significantly less. If it can accommodate your required R-value, there is no reason why you should not choose open-cell SPF.
Closed-cell spray foam
Closed-cell SPF is a great thermal insulator, having a high R-value. To be more precise, closed-cell SPF has a 3.8 R-value per inch, being a much better alternative. It is common knowledge that the higher the R-value is, the better the insulating power the material has. This is the reason why this insulation material is slightly expensive. It keeps the wind inside and provides a barrier against outdoor elements. Some argue that closed-cell SPF is more efficient than any other type of insulating material. In addition to the fact that closed-cell SPF is an excellent air impediment, it is resistant to moisture and it is strong enough to support the home’s structure. To put it simply, this insulation material makes a significant contribution to the structure’s strength. The only drawback of closed cell SPF is the fact that it requires a greater initial investment.
As mentioned in the very beginning, both types of spray polyurethane foams have benefits and drawbacks. When making your final decision, you will have to take into consideration the type of application and the R-value requirement. No matter what you opt for, you can be sure that you will not need to make repairs in the future. Both types reduce with success heat loss by providing an impediment against areas that tend to be different in terms of temperature.