Shirley Insulation, owned and operated by Kirk Shirley since 1977.
Serving Southeast Idaho, Central Idaho, and Western Wyoming.

Why Choose Polyurethane Foam Insulation?

To put it quite simply, the purpose of insulation in a home or building is to restrict the flow of heat from inside to outside. When a comfortable temperature is reached inside, it is the ability to maintain a comfortable temperature that illustrates the effectiveness of an insulation system. Fall is here! If you are building a new house, it's time to get a quote on spray foaming your walls. You will SAVE 50% on your energy bills.

Mention this ad and save $50 on your insulation job. Polyurethane foam Insulation offers one of the most effective ways to maintain a comfortable temperature inside your home. Today's home buyer demands energy efficient construction and design in the homes they buy. Polyurethane Insulation meets the requirements of Chapter 26, of the Uniform Building Code.

Polyurethane foam insulation forms an airtight seal.

Building scientists say that a home should be as tight and seamless as possible. Yet, a typical 2,500 square foot home has over a 1/2 mile of cracks and crevices resulting in a great range of problems most homeowners have come to accept. You can demand better. You can insist on foam insulation.

Unlike fiberglass or cellulose, polyurethane foam insulation expands on contact forming an airtight seal eliminating convection currents, the number one source of heat loss; helping maintain a constant temperature throughout the home.

For More Information Download The PERMAX PDF.

Polyurethane foam insulation saves energy.

Polyurethane insulation forms a seamless insulating barrier which minimizes air infiltration, major source of heat loss. Polyurethane insulation can seal and fill the cracks and seams you could never reach with a caulk gun or weather stripping. Other types of insulation material fail to stop this loss through cracks between the studs and the insulating material.

Air infiltration wastes up to 40% of every home heating and cooling dollar.

For More Information Download Energy Comparisons PDF.

Polyurethane foam insulation controls air quality.

Good building science requires controlled mechanical ventilation. Currents and drafts resulting from traditional insulation are no way to re-condition the air in a home — such wind in the walls just adds discomfort. In a foam insulated home, a standard air recycler effectively replaces stagnant, polluted, interior air with fresh, clean air.

How mportant is that? The EPA estimates that interior pollution concentrations can be 2 to 5 times the air we breathe outside!

For More Information Download The PERMAX PDF.

Polyurethane foam insulation resists condensation, inhibits rot, and reduces mold.

2 lb. foams, when applied at a thickness of 2.5 inches or more, can act as a vapour barrier. They offer the highest R value per inch of all foam systems. In all climates, condensation within the wall can be a serious problem leading to loss of insulation and rotting of framing members. Unwanted moisture is the number one cause of building damage. But moisture and condensation have virtually no effect on polyurethane insulation.

For More Information Download Moisture Control PDF.

Polyurethane foam insulation means peace and quiet.

Noise pollution — sirens, cars, motorcycles, planes, barking dogs, construction — can affect sleep and increase stress. Everyone needs peace and quiet. Polyurethane foam insulation helps deaden the sounds of the outside world; creating a tranquil environment.

For More Information Download The PERMAX PDF.

Polyurethane foam insulation saves on overall construction costs.

The high R value per inch of our polyurethane insulation allows the homeowner or builder to use 2x4 stud wall construction in exterior walls instead of 2x6 studs required with most other forms of insultaion in may climate zones. This can save on framing costs, as well as extended window and door jambs. This simple change also can increase the amount of living space by as much as 35 square feet in a typical 1,500 square foot home. This is like getting an extra closet!

Appliance manufacturers have used similar insulation materials for years to produce refrigerators and water heaters with thinner walls. Now you can accomplish the same thing in your home.

Polyurethane is widely used today because it has one of the highest R values for any given thickness among commercially available building insulation. R means the resistance to heat flow. The higher the R value, the greater the insulating power!

Polyurethane foam insulation also increases structural strength.

For More Information Download Structural Strength PDF.

Additional Insulation Services.

Polyurethane Foam Roofing Systems

Spray Polyurethane Foam has been used as a roofing and insulation material for over 45 years. During this time, foam roofing systems have proven themselves through comprehensive, independent studies to be dependable, long lasting, and very affordable. Today there are foam roofs that have been in place for decades, and by all appearances they should be able to last indefinitely as long as they are properly maintained.

For More Information Download the PREMAX Roofing PDF.

Insulsafe SP Loose Fill Attic Insulation

InsulSafe SP is a fiber glass blowing insulation used in residential and commercial construction as a thermal and sound absorbing insulation. It is designed for pneumatic installation in open attics. It may be used in retrofit applications.

Service Areas

Shirley Insulation has been serving Southeast Idaho, Central Idaho, and Western Wyoming since 1977. Mention this web page and receive a free bid on your home.

Contact Us For More Information

(208) 356-7000