Does spray foam insulation have building code approvals?

Yes. Spray foam insulation has approval of all four major building codes in the United States and the Canadian building code. In fact it is one of the most extensively tested insulation product ever.

Should spray foam installers have an SPFA PCP certification?

Yes. Achieving SPFA PCP certification status means that the contractor has demonstrated the knowledge, skills and abilities established by industry and SPFA to be deemed proficient at the respective level.

What is the difference between vented and unvented attics?

When a building has a vented attic, it has intake vents near the roof’s eaves to allow outside air to enter an attic space and exhaust vents that allow air to exit, with insulation usually installed on the top of the attic floor.

In unvented attics the attic is in the conditioned area of your home and keeping moisture out. Openings between the attic and the outside are sealed, and the underside of the roof is insulated. This allows airflow between the attic and the house, and blocks continuous, uncontrolled airflow through the roof structure, which conserves energy.

What is the difference between open cell and closed cell spray foam?

Open-cell spray foam (ocSPF) has an open cell structure where the cells are filled with air. The open cell structure renders soft, flexible foam, with a density of about 0.5 – 0.8 pounds per cubic foot (pcf). Still air is the primary insulation medium of ocSPF, fiberglass and cellulose. The insulations work by reducing the natural air movement within these material thereby reducing the ability of the material to conduct heat. The R-value of open-cell foam typically ranges from R3.5 to R4.5 per inch. Unlike fiberglass and cellulose, the fine cell structure of ocSFP makes it air impermeable at certain thickness. The air impermeability of ocSPF qualifies it as an air-barrier material, dramatically reducing air leakage through the building envelope. It is an excellent sound absorption material but is moisture-permeable.

Closed-cell spray foam (ccSPF) has a closed-cell structure which yields a rigid, hard foam, with a density of 1.8 – 2.3 pounds per cubic foot (pcf), and has been demonstrated to provide structural enhancement in certain framed buildings. These smaller cells trap an insulating gas, called a blowing agent. This blowing agent has a lower thermal conductivity than still air, and increases the R-value. Typical R-value per inch of closed-cell foam ranges from R5.8 toR6.9per inch making it a great choice in applications where clearance is limited. Like ocSPF, ccSPF is also air impermeable at certain thickness and can qualify as an air barrier material. The closed-cell structure of ccSPF makes it water resistant, and is the only foam that can be used where contact with water is likely (e.g; below-grade concrete walls, in contact with the ground, or on exterior side of building envelope

How does spray foam insulation save money when compared to fiberglass or cellulose?

While the initial cost of installing SPF maybe higher than other traditional insulation, homeowners are able to save more money per month to more than make up for this difference. SPF can reduce heating/cooling costs (compared to traditional insulations) by up to 50%. SPF can also save money by way of a reduction in the required sizing of the HVAC unit.

At what point in the construction of my house should spray polyurethane foam insulation be applied

Spray polyurethane foam insulation is professionally installed at the same point in the construction cycle as other types of insulation. This typically occurs after the rough plumbing, electrical wiring, and heating and air conditioning ducts have been installed, but before the interior walls are completed in new home construction. in some cases spray polyurethane foam insulation can be applied in older homes, to the underside of roofs and under floors after construction has been completed.

Do I need to leave my house when spray polyurethane foam is being installed

Yes. The manufacturers of Spray foam insulation do recommend that you leave your house or business for at lease 24 to 48 hours to allow fumes to dissipate. We recommend that the HVAC system be turned off and where possible windows and doors be left open. This will allow any fumes to dissipate at a quicker rate.

Does spray polyurethane foam contain formaldehyde

No it does not.

Does spray foam insulation adhere to metal of wood studs

Yes. spray foam insulation adheres to almost any material, especially wood and metal studs and concrete which are commonly found in residential and commercial construction. It will not settle or fall out of the walls or ceiling.

Can I spray polyurethane foam insulation in an existing home

Yes. New Era Insulation Ltd can spray polyurethane foam insulation to the underside of your roof deck or the floor of your ceiling and into new additions and renovation projects involving the removal of drywalls.

Will I save money if I insulate with spray foam insulation

Yes, the installed cost of spray foam insulation is somewhat higher than fiberglass. However the higher initial cost is partially offset because of the sustainability of the insulation (it will not degrade over time) and you may be able to downsize your heating and air conditioning equipment. Additionally you will save in your heating and cooling bills. Studies suggest that homes insulated with spray polyurethane foam use up to 40% less energy than homes insulated with conventional insulation. Your savings may be greater of less depending on your life style, appliances, house site, number and size of windows, etc..

How long does spray foam last?

Indefinitely. As an inert, long lasting polymer, residential and/or commercial structures are a great places for spray foam insulation.

Is spray foam considered an air barrier?

Yes. Spray foam will stop air infiltration in commercial/residential buildings. This will also keep out moist/humid air and dust/pollen. Fiberglass batts and loose cellulose will not stop air infiltration allowing dust, pollen and moisture into a home/building.

Does spray foam insulation aid in the growth of mold?

Spray foam insulation offers no food value; therefore it does not support bacteria or fungal growth. It also does not retain water, making it an unappealing environment for fungal spores. All building material when installed to create a building envelope assembly, work interactively a system, to control the movement of heat, air and moisture. When not properly designed or installed, moisture can move through the building envelope and condense on cold surfaces that are below the dewpoint temperature or create high levels of moisture. This moisture at certain temperatures, in the presence of organic food sources (paper, wood, bacterial dust etc.) can provide the conditions necessary to promote the growth of mold and mildew. While SPF is not a source of food for mold, mildew and bacteria, organic dust can collect on the surface of the foam. In combination with moisture at the right temperatures, these organic dust can result in mold and mildew. SPF like all insulation products can result in mold and mildew problems in building envelopes that are poorly designed and constructed.

How is spray foam insulation installed?

SPF is a two component liquid that’s sprayed in place by a trained professional applicator. The two liquids, heated under high pressure, mix at the spray gun reacting with each other causing the liquid to expand rapidly and cure as a rigid/semi-rigid foam.

How does spray foam insulation control moisture movement and condensation?

Moisture damage within a building envelope is mainly the result of warm moist inside air being exchanged with the cold dry outside air with your walls. As moisture in the air condenses, it forms dew within the insulation. Because spray foam insulation is air sealing, this moisture movement and condensation do not occur.

What is the flame spread and smoke development of spray foam insulation?

Spray foam has a flame spread of <25 and smoke development of <450. With these results, spray foam is a Class 1 rated material. This is the highest rating an insulation product can receive for residential and commercial applications.

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