MAX+ 2in 4ft x 8ft Rigid Sheet Foam

Cell Structure: Manufactured from graphite expanded polystyrene resin using a pentane blowing agent. This creates an air-filled, closed cell foam.

Cell Structure: Manufactured using polystyrene, blowing agents, and dyes. This creates a closed cell foam that often contains hydrofluorocarbons (HFCs).

R-Value Stability: Provides a stable R-value that does not deteriorate over time.

R-Value Stability: Less stable and the R-value deteriorates as gasses escape its cells.

Long Term R Value: LTTR does not apply to MAX+, because it is not manufactured with the intent to retain blowing agent and due to its closed cell nature, there is no reduction in R value over time.

Long Term R Value: XPS uses a blowing agent when manufactured, thus it leaks over time reducing the R-value by 10% over 5 years, resulting in a R-value of 4.5, which is lower than that of MAX+

Compressive Strength: Available in 10, 16, 20, 25, and 30 psi.

Compressive Strength: Available in 15, 25, 30, 40, 60, and 100 psi.

Cost: Impressive cost per R-value and compressive strength. MAX+ is a dependable, cost-efficient solution that on average costs 10 - 30 percent less than XPS.

Cost: A much higher cost per R-value and on average costs 10 - 30 percent more than MAX+. Additionally, its R-value is less stable and deteriorates over time.

Water Absorption: MAX+ absorbs more water initially but retains less water long term. Designed to quickly release moisture. This enables it to dry quickly and maintain its R-value over time. 15 years study shows 5% water absorption, 94% R-value retention.

Water Absorption: XPS absorbs less water initially, but retains more water long term. Often traps moisture due to its low drying potential. Its inability to release moisture causes its R-value to deteriorate over time. 15 Year study shows 19% water absorption, 52% R-value retention.

Water Resistance: Closed cell polystyrene insulation that is resistant to moisture gain, proven to resist moisture in both short (24 hour) and long-term tests

Water Resistance: Closed cell polystyrene insulation that is resistant to moisture gain. However, its ability to resist moisture has only been proven in short-term (24 hour) tests.

Vapor Permeance: Ranges from 2.5 – 5.0 ng/Pa·s·m2 per inch thick. It is more breathable and dry’s better in wet climates.

Vapor Permeance: Typically 1.5 ng/Pa·s·m2 per inch thick. Is not breathable and has high potential of trapping moisture in your wall due to its low drying capability.

Environmental Impact: Low impact on the environment. Its manufacturing process uses a pentane blowing agent instead of the hydrofluorocarbons (HFCs) blowing agents typically used to produce XPS. MAX+ is Green Gaurd certified and has the lowest carbon footprint of all rigid insulation, up to 57 times lower.

Environmental Impact: High impact on the environment. Its use of hydrofluorocarbons (HFCs) as a blowing agent cause a very high global warming potential (GWP). It also uses harmful color dyes not found in MAX+. Results in a carbon footprint of up to 33-57 times higher then MAX+.

Standard Compliance: Meets CAN/ ULC S701 and ASTM C578 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation.

Standard Compliance: Meets CAN/ ULC S701 and ASTM C578 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation.

Dimensional Availability: Options to suit every application - standard sizes or custom cuts to suit your needs.

Dimensional Availability: Limited thickness and size options.