Polyisocyanurate Foam Insulation What Polyiso Is and Why It’s so Good

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I love Polyiso foam insulation. It’s a key part of my business, and an essential tool in the fight to reduce carbon emissions and save the world. I’m completely biased but also completely right: there is no better material out there than polyiso for weatherproofing, energy efficiency, and more. So in this post, I’m going to tell you everything you need to know about this indispensable material so that your next building project can benefit the planet and be cost-effective at the same time!

What is Polyiso Foam?

Polyisocyanurate foam insulation is a closed cell foam made from polyisocyanurate and used in a variety of applications. Polyiso has been around since the 1960s and is still one of the most popular insulations today.

Polyiso is often referred to as polyiso or polyiso insulation, but they all mean the same thing: Polyurethane foam made from polyisocyanurate resin with a high thermal resistance that’s used for many different applications.

Why Use Polyiso Foam?

Polyiso is a great insulator because it’s high density and low thermal conductivity. It’s also an air barrier, vapor barrier, fire barrier, and sound barrier. When it comes to building materials in general, polyiso has very high R-values (the measure of insulation quality). This makes it an excellent choice for insulating your home or business and maintaining comfort levels throughout the year.

Polyiso is often used as insulation for attics and crawl spaces because it will last longer than fiberglass or cellulose products and doesn’t require special handling during installation. You don’t need to wear gloves when working with polyiso foam; however you do need to be sure that all cuts are made with clean tools because otherwise those sharp edges can lead to punctures in the product packaging later on down the road!

Applications for Polyiso Foam Insulation

Polyiso foam can be used in a variety of applications. It is used in the building of homes, commercial buildings and greenhouses. Polyiso foam is also used in the construction of animal housing.

The Need for Polyiso in the Modern Age

You may not know much about polyiso insulation, but it’s a great material that’s used in many industries and applications. Here are some reasons why you should use polyiso foam:

  • It has a high R-value and can be used for all kinds of insulation projects
  • It’s flexible, so it can be cut to shape or custom-fit to any space
  • You can use it inside or outside your home, depending on the climate where you live

So many good things can come from polyiso foam!

Polyiso insulation is an excellent insulator. It’s one of the best options for energy conservation, and you can choose from a variety of thicknesses to suit your needs.

Polyiso insulation is environmentally friendly. Unlike fiberglass, polyiso doesn’t contain VOCs—volatile organic compounds that are harmful to humans and the environment.

Polyiso foam is great for soundproofing! If you want to keep noise out of your house or apartment, this product will help you do it in style.

Also, polyiso is an excellent air barrier because it has such low permeability ratings when compared with other types of insulation materials like cellulose or fiberglass batts (R-value). This means less heat transfer through walls and ceilings into unconditioned areas like attics or basements where moisture problems may occur over time due to condensation issues caused by cold surfaces touching warm ones like pipes running through walls/ceilings


All in all, polyiso foam is a great way to insulate your home. It’s also environmentally friendly and will keep you warm too. While it might be hard to find at first, there are plenty of stores that carry it so you can get some before winter hits!

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