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Benefits of Spray Foam Insulation


Spray foam insulation saves on energy costs and lowers utility bills. Studies by the US Department of Energy show that 40% of a home's energy is lost as the result of air infiltration through walls, windows and doorways. Buildings treated with spray foam insulation typically insulate as much as 50% better than traditional insulation products.

Insulation that is sprayed in buildings protects against moisture, which provides the benefit of reducing the chance of harmful mold and mildew. Eliminating mold growth reduces the likelihood of rotting wood in a home, and allergic reactions to mold spores.

In addition to building temperature and moisture control, spray foam insulation is often used to reduce noise. Foam insulation serves as a barrier to airborne sounds, and reduces airborne sound transfer through a building's roof, floor and walls.

In the United States, homes treated with spray foam insulation often qualify for state and federal tax deductions.



1. Powerful Insulator
Spray foam insulation works far better than other popular types of insulation. Because of its expansive nature, spray foam tightly seals all nooks and crannies that otherwise would have been left exposed. Spray foam’s resistance value, or its ability to provide an air-tight seal, ranked at R-6, the highest rank on the market today.


2. Incredible Energy Savings
Because spray foam in such a powerful insulator, families and businesses have actually been able to save a significant amount on their energy expenses. Spray foam insulation has shown to provide energy savings at an average of 50% or more, unlike other types of insulation that average a savings rate of about 30%.


3. Air-tight Seal

Spray foam insulation is uniquely capable of thoroughly sealing holes and cracks in your attic or crawl space. Air leaks are often one of the biggest reasons for high energy bills. Spray foam insulation creates a powerful airtight seal that has shown to be 24 times less permeable to air infiltration than other types of insulation.


4. Moisture Barrier

Holes and cracks in your walls and crawl space can allow entrance to more than just air. Water and moisture can gain access to these areas through exposed cracks and holes if not sealed.
Spray foam insulation is impermeable to water. This means that not only will spray foam thoroughly seal and protect your attic and crawl space from airborne moisture and leaks, but if  flooding should occur in the area, spray foam insulation will not absorb the water like other materials will.


5. Deters Mold

Spray foam is not only water resistant, but it is composed of an inert polymer that provides no source of food for mold or bacteria. Homes that are insulated using closed-cell insulation are better protected against mold and mildew.


6. Long Life-Span

The inert polymer that spray foam insulation is comprised of allows it to have an indefinite lifespan. This allows homes and businesses to enjoy the benefits of spray foam insulation for years on end before needing to re-insulate. Businesses and families that invest in spray foam insulation can actually save money over the course of 20 years or more because of spray foam’s unique ability to perform at optimal levels for extended periods of time.


7. Eco-Friendly

One of the most common inquiries made about spray foam insulation is if it is eco-friendly. Our answer is yes! There are several reasons for this.


  • Spray foam helps reduce energy consumption and create a ‘green’ household.
  • Protects against moisture and mold growth
  • Designed to last indefinitely, producing fewer consumed materials

Thermal Resistance Properties

R-value is the term given to thermal resistance to heat flow. The higher the R-value of an insulation product, the more effective the insulation properties.[5] 1.8-2 pound polyurethane foam has the highest R-value of readily available insulation used in homes and buildings.[5][6]

Polyurethane is a closed-cell foam insulation material that contains a low-conductivity gas in its cells.[7] As a result of the high thermal resistance of the gas, spray polyurethane insulation typically has an R-value around R-5 to R-6 per inch.[7] In comparison, blown fiberglass typically has an R-Value of only R-2 to R-4 per inch.[8]


Foam insulation blocks all three forms of heat transfer:

Conductive heat transfer
The flow of thermal energy through a substance from a higher to a lower temperature region. Foam thermoset plastics block conductive heat transfer due in part to having very loose molecular bonds; In addition the cells of the installed spray foam are either filled with air in the case of open cell foam or in closed cell foam.

Radiant heat transfer
The process by which heat energy in the form of light (usually IR unless the substrate is hot enough to glow in the visible range) is emitted more strongly by warm surfaces and absorbed by other materials especially those of low IR reflectivity (think matte black finish). Radiant heat transfer does not require a medium. Thermoset foams, such as spray foam insulation, have the ability to reflect radiant heat. This is due to the reflective (shiny, in terms of IR) surfaces within the cell structure of the foam.

Convective heat transfer
Heat which is created elsewhere that is transported by means of a fluid, such as water or in our case air. Spray foam insulation's most important attribute is the ability to air seal creating a custom airtight envelope within the building structure. The added benefit to air sealing is the ability to block convective heat transfer from interior to exterior during heating months and vice versa during cooling months, as the heat cannot escape through gaps in the buildings envelope without the aid of air movement from infiltration as a means of transport.




  

US Climate Zone Map