Envirosheet: EPS Insulation Board

Continuous insulation that improves thermal comfort and energy efficiency.

Easy Installation

Durable, Flexible, Lightweight

Above Ground Exterior Grade

Superior Thermal Insulator

Reduces Energy Consumption

About Envirosheet EPS Insulation

Envirosheet is an economical rigid insulation board made from Expanded Polystyrene (EPS) offering a high R-value per dollar when compared to other generic rigid insulation solutions on the market. It is a highly flexible and cost-effective product that can be used for above grade and below grade interior applications in residential or commercial construction.

Envirosheet EPS insulation can be installed on most substrates and can accommodate virtually any finish ranging from stucco, siding and masonry veneer providing professionals great design flexibility. The EPS has high permeance to allow the passage of water vapor, reducing the risk of trapped moisture in the wall assembly.

Envirosheet is available in a variety of sizes, thicknesses and densities. The availability of larger panels helps improve job site efficiency and reduce labor cost.

Product Features

Envirosheet Data Sheet

Compressive Strength
12 psi (86 kPa)
Thermal Resistance
3.9 hr.ft2.F/Btu/1 inch (0.68 m2K/W per 25mm)
Vapor Permeance
4.9 US perms (282 ng/Pa.s.m2)


Interior foundation wall


Supplementary insulation

Exterior above grade wall

Download Brochure & Specs

The Alleguard Advantage

With a combined 60-year history and proven track record of supporting our customers’ visions, Alleguard is strategically built from the ground up to expand and shape your business. Whether you’re in construction, protective packaging, cold-chain or other industries, we are relentless in going the extra mile to help your business succeed.

About EPS

EPS has high R-value retention, is fully recyclable, and is easily customizable. EPS is made without ozone-harming compounds or any kind of dye. It is available in a variety of compressive strengths and has superior bonding capabilities. Best of all, EPS will save you time and money. So the real question is: Why not EPS?

Building with Envirosheet

Superior Thermal Insulator

Envirosheet has exceptional long-term R-value retention as well as increased thermal resistance in lower temperatures.

Durable, Lightweight, Flexible

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

Improves Indoor Air Quality

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

Increases Comfort & Energy Savings

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

Environmentally Friendly

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

Shaping A More Sustainable World

Sustainability is one of our top priorities, both for our products themselves and for what our products make possible. Manufactured without ozone-damaging compounds, recyclable and endlessly reusable, EPS has a smaller carbon footprint and results in less pollution than the manufacturing of alternative materials. And EPS helps create a more sustainable world by making buildings more energy efficient, reducing greenhouse gas emissions, preventing product damage and waste, and reducing shipping fuel usage, just to name a few. We’re constantly working to find new ways to be good stewards of our customers’ visions and of our environment.


Get Our Latest Insights

Contact Us

Interested in Learning More?

Whether you need a custom solution for a unique project or have a question, we’re here to help.