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.
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.
|R-Value/inch||3.9 hr.ft2.F/Btu (0.69 m2K/W per 25mm)|
|Vapor Permeance||5 US perms (287 ng/Pa.s.m2)|
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)
Lightweight boards are easy to handle while integrated strips eliminate an extra step in installation.
The boards provide a built-in air gap to ensure cladding is installed as rainscreen allowing for easy egress of any trapped moisture.
Improve the energy efficiency of your home while creating a more comfortable environment.