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Spray Foam: Not Just For Your External Property

It’s touted as an alternative even by us at Ener Spray: spray polyurethane foam is an excellent roofing and exterior protective layer. Defending against the elements, capable of preserving your property’s performance, and ensuring your material’s long-term dependability, they’re one of the best residential investments you can use. However, it isn’t just an excellent roofing material for your outdoor needs; it can actually help you with many other highly-beneficial in-home applications.

Family Handyman has a great list of spray foam applications capable of improving many aspects of your everyday home facilities. Read more about it below.

We all know spray foam is an insulation powerhouse, but here are some genius uses for this useful product that you may not have considered.

Dull the Noise

Water supply lines can create a racket when in use. To prevent the problem, you can use a small amount of spray insulation foam between pipes and framing to keep the pipe in place and reduce noise. Here’s how to do it.

Create an Oasis

Create a backyard masterpiece with our DIY backyard waterfall and stream. To ensure a beautiful flow of water that won’t erode your creation, use waterproof spray foam, to secure decorative rocks and fill gaps to keep water flowing freely.

Firm Up a Wobbly Showerhead

Squirt a little expanding foam around a loose shower arm, and it’ll be solid as a rock. Let the foam set up until it’s stiff and carve off any excess around the shower arm. Slide the cover plate tight to the wall and you’ll never know there’s foam holding things together. This same trick firms up any other loose or wobbly pipe.

Stay Basic

You can’t overlook the basics when dealing with a versatile product like spray foam. It’s still a go-to solution for insulating and filling gaps in walls, crevices and around windows and doors. For all the tips you need to become a master, check out our article on how to master spray foam. (Continued)

However, can you really just use one type of spray polyurethane foam for these projects? What Family Handyman forgot to mention was there are different varieties of spray foam useful for different applications. If you have knowledge on how to use them, you can definitely take on the projects listed above.

Why Spray Foam has a list of different types of spray polyurethane foams useful for different projects. Read more about them below.


Builders often turn to high-density SPF when high insulation values and strength are needed. As its name implies, this foam has a denser structure than either of the other SPF types. Therefore, it does not expand as much as lower density foams and requires more material to cover and insulate any given space. This spray foam is often an excellent choice for roofing or other exterior insulation because of its seamless, monolithic nature. High-density SPF can also help reduce energy costs significantly over a roof’s lifetime due to its thermal resistance properties. It also offers increased protection against air and water infiltration and strengthens the structure to which it is applied. The bond that SPF forms to the roof can increase a building’s resistance to wind uplift, which can help reduce damage experienced during periods of high wind.


Medium-density foam is applied as low or high-pressure two-component polyurethane spray foam. Medium-density foam offers specific benefits depending on the climate and the type of building in which it is used. Like low-density foam, medium-density SPF is often used for continuous insulation, interior wall cavity fill, and unvented attic applications. However, medium-density is a closed-cell spray foam; it is often used where there is need for the greatest R-value insulation per inch possible. Medium-density foam acts as an air, vapor, and water barrier, and can even help reduce noise.

Medium-density foam can also provide a high tensile and bond strength. It can provide low vapor permeance and is often not affected by moisture such as wind-driven rains.


Also known as open-cell-foam, low-density spray polyurethane foam is spray applied to provide a continuous insulation and an air-sealing barrier. Low-density SPF is also called ½ pound foam, as it weighs almost 0.5 lbs. per cubic foot. The foam’s open-cell structure gives some flexibility to the hardened foam.

Low-density foam is applied as low or high-pressure, two-component polyurethane spray foam. Low-density spray foam can be applied on walls, in unvented attics, to ducts and ceilings, and in vented attics and crawl spaces. It is known as an air barrier, but permeable to vapor and moisture. It is often used to fill cavities in walls during construction. (Continued)

Remember, if you’re having problems with your internal residential spray foam projects or need exceptional results in your exterior SPF needs, you can always count on us at Ener Spray to deliver what you need. Talk to us today to learn more about what we can do for you.

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