Plenum Urethane Foam

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Urethane foam is a great way to insulate your home, but it’s important to know exactly what type you’re getting. This blog will go over the different types of urethane foam that are commonly used in home insulation.

Open Cell Urethane Foam

Open cell urethane foam is an insulation material that can be used for a number of different applications. It is a very good insulator, and it also helps keep your home dry and comfortable by acting as a vapor barrier. It’s also great at preventing air from getting into or out of your house, so you’ll stay warm in the winter months and cool during those hot summer days. Open cell urethane foam can also act as a sound barrier to reduce the noise level inside your home.

Finally, because open cell urethane foam has open spaces between its cells (which gives it its name), this material allows moisture to escape through evaporation rather than being trapped inside the walls of your home where it would cause damage over time–making this type of insulation quite resilient when exposed to water or humidity levels above normal levels in daily life!

Closed Cell Urethane Foam

Closed cell urethane foam is one of the most common types of urethane foam used in residential insulation because it has a high R-value, which makes it ideal for applications where you need more insulative value (i.e., higher thermal resistance).

Closed cell urethane foam is closed to air flow, so there is no possibility that moisture or other substances will be able to penetrate and cause damage. This allows closed cell urethane foam to achieve a lower density than open cell urethane foam. However, this also means that closed cell has a higher price point than open cell because the process for creating it requires more energy and time.

Spray Urethane Foam (SPF)

Spray urethane foam is a two-part mixture that’s sprayed into place. It expands to fill all voids and provides a complete air seal while retaining its shape. Spray foam isn’t susceptible to mold or mildew, so it keeps the inside of your home dry. The spray is fire resistant, waterproof, soundproof and insect proof as well.

Spray foam can be used in two different ways: either it can be sprayed directly onto surfaces like walls or ceilings; or applied in depth with a closed cell backer rod (often called “snake skin”) to create an uninterrupted layer between the studs of your walls or floor joists below them. Both options offer an excellent R-value — which means that they can help reduce heating and cooling costs in your home by keeping heat close to where you need it most!

Injection Urethane Foam Insulation

Injection urethane foam is a great choice for low-R values. This type of insulation is sprayed into the wall cavities before the drywall or plaster goes up. The material expands as it cures and fills any gaps in your walls, resulting in an airtight seal.

The liquid can be injected into your walls through a hole drilled in each stud cavity at either end, where it will expand to fill the space between them. Injection urethane foam insulates best when it’s pushed from both sides of each stud cavity simultaneously; if you only drill holes on one side, there won’t be enough pressure to force the insulation out of its container and into your walls!

All urethane foams are not made alike.

To understand the differences between these three types of urethane foam insulation, you need to know a little about how the foam is made.

Injection urethane foam is made by combining two ingredients: a liquid and a gas. These ingredients are mixed together using an injection gun, which injects the liquids into a mold that resembles wood cross sections. The process is similar to injecting concrete into molds. After it cures, the foam becomes rigid enough that it can be handled like wood or lumber! It’s called “injection” because it uses pressure and force during this process; this helps create denser materials with fewer voids than open-cell foams have (more on this later).

Closed-cell polyurethane foams are manufactured differently than open-cell polyurethanes because they contain tiny air pockets within their structure – these air pockets give closed cell polyurethane foams an R-Value rating higher than any other type of insulation material available today! That’s why most contractors use closed cell polyurethanes for commercial applications where energy efficiency is important; however, since these types tend not towards moisture absorption like open celled ones do , they often cost less per square foot due their lower density levels which mean fewer pounds used per cubic foot compared against open celled ones .


I hope that this has given you a better idea of what type of insulation your home will need to keep it at the right temperature during these changing seasons. If you’re still not sure, then feel free to contact us with any questions or concerns you might have and we’ll be happy to help!

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