Envirostrap: Rigid Foam Insulation

Continuous rigid insulation with integrated strapping

About Envirostrap

Rigid insulation with integrated strapping

Why Envirostrap

Durable, lightweight, energy efficient, and environmentally friendly


Rigid foam Insulation

Envirostrap is a rigid insulation board made from closed cell Expanded Polystyrene (EPS) with two integrated furring strips on one side. This highly effective combination of materials offers a 2-in-1 solution incorporating insulation and finish attachment surfaces that can be used for both above grade and below grade interior applications. The furring strips can either be fully recessed inside the foam for interior finish installation or can protrude from the surface of the foam by ¾” (19mm), creating an air gap that is needed for exterior cladding installation.

The two furring strips are located 16” on center (406mm) on each panel and are 2.5” (63mm) wide and make for an easy installation of finishes such as siding or gypsum board (drywall). The combination of the thicker strips (1” (25mm)) with the spacing and width provides the user with the widest range of warranty compliance by the various siding manufacturers.


Continuous rigid insulation with integrated strapping

The furring strips are made from plywood in order to eliminate bowing and warping that can be found in typical dimensional lumber. For instances where wood cannot be used due to potentially increased moisture issues, the panels can be ordered with plastic strips giving the user excellent flexibility.




Envirostrap comes in 32″ (813mm) width and is available in 8’ and 9′ lengths (2.4m and 2.7m respectively). Boards come in 2-5/8″ (67mm) and 3-1/2″ (89mm) thicknesses.

Contact us

Call us to get a free quote or make an appointment to visit our showroom!

Why Use Envirostrap?

Durable, lightweight, energy efficient, and environmentally friendly

Superior Thermal Insulator

Envirostrap has exceptional Long-Term R-Value Retention (LTTR) as well as increased thermal resistance in lower temperatures.

Durable, lightweight, flexible

Each panel is easy to handle due to the low weight and can be easily cut.

Improved Indoor Air Quality

Envirostrap does not contain CFCs or HCFCs, no off-gassing and does not promote growth of mold and mildew.

Environmentally Friendly

EPS foam can be recycled and uses only steam and water during manufacturing.

Increases Comfort and Energy Savings

Acts as continuous insulation in the building envelope, reducing thermal bridging and energy consumption while improving comfort.