An Essential Guide to Spray Foam Insulation – What to Know

Homes are regularly exposed to different types of extreme weather conditions, you will want to build them to be sturdy and resilient. With the help of Spray Foam insulation, you can address this need. It’s a home repair solution that offers strength, durability, and comfort. It’s the only material that prevents flood damage and is wind-resistant, making walls more rigid and sturdy.

While the spray foam technology has been around for more than 40 years, many homeowners are only recently looking at it as an energy-efficient and effective roofing option. If you want a home that will stand the test of time, this guide is for you. Read on to know more about Spray Foam roofing—how it works, its advantages, cost, and overall benefits.

How Spray Foam Insulation Technology Works

Spray Polyurethane Foam (SPF) is a material that is sprayed as a liquid and expands into a foam, forming a solid layer on the surface. The chemistry works in a way that a two-component mixture of isocyanate and polyol resin joins at the tip of the applicator gun, creating a foam that expands up to 30 times its original volume in liquid. The foam fits every curve and crevice of the surface, and, when cured, solidifies as a hard top coating. This outer shell serves as an air, thermal, and moisture barrier, all-in-one.

SPF roofing and insulation for roofs and walls use closed-cell foam, a highly dense product. It can also be used for engineering solutions, such as foundations, roads, and concrete repair.

SPF Insulation’s R-Value

An insulation’s R-value refers to the product’s thermal resistance to heat flow. Insulation is what keeps your home or building warm during winter and cool during summer, which results in lowering your electricity bills. Construction professionals look for insulation with the highest amount of R-value. The higher the R-value of a product, the more effective is its insulation properties. Regarding closed-cell spray foam, as used in SPF insulations, the product has a value of almost R-7 per inch, the highest among standard roofing and insulation materials.

Convenience, Efficiency, and Durability

SPF insulation is an excellent solution for repairs and renovations because of the easy installation. It can be applied to almost all types of surfaces, even irregularly shaped ones with different textures. In the U.S., a new technology called “wall injection” is used to retrofit the existing wall. Small holes are drilled in between wall studs of a home’s framing, filling them with the expanding foam. It doesn’t require to tear down existing walls and roofs, making the application very convenient.

SPF insulation is also energy efficient. Studies show that 40% of a building’s heat is lost through spaces in walls, doorways, and windows. Homes using SPF roofing and insulation conserve up to 50% more when compared to traditional materials. The solid barrier it gives also acts as a tight barrier against other environmental factors, including pollen and dust.

SPF insulation requires little maintenance. A yearly inspection is recommended, especially after a natural disaster, such as a strong typhoon. If properly maintained, SPF roofing can last for over 50 years.


Several factors determine the price of Spray Foam insulation, which includes the size of the surface, thickness, and condition of your existing walls or roof. Some companies offer warranty and maintenance services to its package, affecting the cost as well. The initial investment may seem steep, as they are about twice as expensive as the traditional fiberglass option. However, when one considers the labor costs, maintenance, and overall durability, SPF insulation proves to be more cost-efficient in the long run.

Given these factors, you now know why many industrial and even residential facilities are making the switch to SPF insulation. It’s an enduring, energy-saving, and economically efficient solution that will make your home last.

If you’re on the lookout for a spray foam roofing contractor to install an SPF roofing system,
make sure that you hire professionals. Get in touch with us today to see how we can help!