Skip to content

Foam Board

contractor installing thermal roof insulation

Foam board insulation is a method of insulation whereby rigid panels are used to insulate buildings. These panels can be installed anywhere in a building, including roofs, walls, foundations, and more. Foam boards are available in various lengths, thicknesses, and facings. This makes them a very versatile option for your project. Rigid foam board insulation greatly reduces heat transfer through structural materials as it offers twice the thermal resistance of most insulating materials. Some foam board products also come with vapor barriers on their sides to prevent the passage of water. Now, we are going to give you a breakdown of the major types of foam boards.


Polyisocyanate Foam (Polyiso)

Polyiso is a thermoset plastic that is used as a rigid thermal insulation panel. With an R-value of 6 per inch, it is the rigid insulation material with the highest R-value. Polyiso is usually foil faced on both sides and this makes it an excellent radiant barrier. The material has a higher cost of installation compared to other rigid foams but it is only because it offers much more value. Our polyiso products are designed to add both quality insulation and visual appeal to your living space. Polyiso insulation boards perform outstandingly in residential and commercial buildings.


Extruded Polystyrene (XPS)

This is a rigid foam that is available in blue and pink panels. It has a smooth surface made of plastic. Extruded polystyrene has an R-value of 5 per inch. When it comes to performance and pricing, this type of rigid foam falls between polyiso and EPS. While XPS panels do not come faced with foil, they are just as water-resistant as polyiso. Also, XPS panels are more durable and long-lasting than EPS panels. The versatility of extruded polystyrene makes it suitable for different applications including foundation insulation and architectural modeling.


Expanded Polystyrene (EPS)

This is a lightweight material that is made from the same source as disposable coffee cups. It is the cheapest type of rigid foam. It also has an R-value of 4, which is the lowest of all rigid foams. Expanded polystyrene is low in strength and durability, so it is more susceptible to damage. However, EPS is a good option if you're working with a tight budget. It would perform quite well if it isn't exposed to lots of abuse. EPS can be installed below roofs, underneath sidings, and above foundation walls.


Contact Beamer Insulation for Your Foam Board Insulation

Foam board insulation is more expensive than batt insulation. For this reason, you shouldn't take a chance with the installation process by attempting a DIY approach. Whether you are planning to insulate your crawl space, attic, basement, or garage, we have got the best hands for your project.  Our experienced insulation installers have been trained to take on any foam board insulation project. We will evaluate the insulation needs of your building and then, advise you on the best material for your project. To get started, all you have to do is to give us a phone call today.

NEW Free Quote - Red