Foam Insulation

Spray foam insulation is recognized and accepted by many builders and homeowners as an environmentally responsible and economically sensible construction alternative.

Products Offered

Evergreen Foam & Insulation is an Authorized Contractor of spray foam insulation systems manufactured by Demilec USA, a leading manufacturer and innovator of spray foam insulation products in the United States.

Evergreen is pleased to offer the following  open cell and closed cell spray foam insulation products manufactured by Demilec:

  • Sealection 500 is a half-pound, open cell, spray-applied polyurethane foam that seals cracks, gaps and voids by expanding 120 times its application volume to form a semi-rigid insulation and air seal. The combination of water-blown expanding foam and the highly adhesive properties of polyurethane sets Sealection 500 apart as an environmentally responsible form of insulation.
  • Agribalance is a one-pound, open cell, spray-applied polyurethane foam that also permeates existing joints and seams to seal out outdoor air and seal in indoor air conditioning and heat. Agribalance is Demilec’s latest development in open cell technology formulated with renewable natural resources to provide an environmentally smart insulation solution.
  • Heatlok Soy is a two-pound, closed cell, spray-applied polyurethane foam typically used in below grade and exposed areas to provide a high quality, reliable seal against air and water infiltration. As a soy bean-based, closed cell, rigid foam, Heatlok adds structural integrity to a structure and is another example of Demilec’s commitment to environmentally sound insulation solutions.

For additional information, please see Evergreen's  Summary Product Comparison for open cell and closed cell spray foam insulation systems manufactured by Demilec:

Benefits

  • Environmentally Responsible – Recognized as an environmentally responsible product, containing no CFCs, HCFCs, fiberglass, formaldehyde or asbestos
  • Energy Efficient – Helps create a sealed envelope, reducing dramatically air infiltration and energy loss of a building
  • Healthy Home – Reduces allergens, pollen and external dust, holds no food value for pests and helps prevent growth of molds or mildew
  • Sustained R-Value – Lasts for the lifetime of the structure and does not degrade over time (unlike fiberglass or blown-in cellulose insulation)
  • Reduced HVAC – Can reduce the size of HVAC equipment needed in a home or building and the number of HVAC cycles per hour
  • Reduced Noise – Can substantially reduce the level of noise transmitted from one room to another, improving the quiet enjoyment of your home
  • Reduced Utility Bills – Can reduce monthly utility bills by up to 50%
  • Return of Investment – Allows the average homeowner to recoup the cost of installation within 3-5 years through potential monthly cost savings
  • Improved Home Value – Can add permanent value to a home through improved comfort, lower utility bills and capitalized cost savings

The Science

Polyurethane foam insulation is a water-blown, highly adhesive, plastic foam that is produced from the mixture of two components, isocynate and a specially formulated resin. These products are kept separate until application when they are mixed together at gun point using high pressure, high temperature spray application equipment.

Isocynate is the base component of many plastics. Resin is the water-based reacting ingredient developed and patented by Demilec. When mixed together and applied to a wall, attic or crawl space surface, foam insulation forms and rapidly expands to fill and adhere to all voids in the application area, sealing out outside air.

The Common Sense

High air permeability of traditional forms of insulation allows air to pass easily through walls, floors and attics where normally occurring gaps and seams exist. Temperature differences between the inside and outside of a building create energy-losing air currents in wall cavities and attic spaces. Air infiltrations in these areas reduce dramatically the performance of traditional forms of insulation such as fiberglass or blown-in cellulose.

Unlike other forms of insulation through which air can pass easily, spray foam insulation is an effective air barrier.

According to the U.S. Department of Energy, the floors, walls and ceilings of a house are the most significant contributor to energy loss. Spray foam insulation can be used to seal each of these areas against air infiltration and energy loss.

Diagram: Contribution to Energy Loss
Source: U.S. Department of Energy

Costs & Savings

As a premium product, spray foam insulation is more expensive than fiberglass or other forms of insulation. Evergreen believes the additional cost of foam insulation can be recouped through the superior performance and significant energy cost savings associated with the product.

The following table illustrates the potential costs and savings of spray foam insulation compared to fiberglass insulation. These numbers are derived from materials provided by Demilec USA and Chase Bank based on the Home Energy Rating System (HERS) efficiency rating of various properties.

Diagram: Cost Savings
Source: Demilec USA

In Demilec and Chase Bank’s analysis, the additional cost of installing foam insulation is included in a larger mortgage. The resulting monthly mortgage payment is then compared with the potential savings in monthly utility bills from the superior performance of foam insulation. The potential savings of using superior construction materials would recur every month for the life of the structure.