Airfoam offers a wide range of high performance, budget-friendly roof insulation products. Over more than 45 years, Expanded Polystyrene (EPS) roofing insulation became the solution of choice for new and re-roofing needs because of its many benefits.
Exceptional Insulation Value
Budget-friendly, stable Long-Term Thermal Resistance (LTTR) with the highest insulation value per dollar spent
Continuous insulation that resists moisture and many other adverse effects, available in many compressive strengths and thicknesses, including custom-tapered for drainage slopes.
A Breeze to Design & Install
Design flexibility, versatility, and support for custom roofing packages. For high jobsite productivity, EPS roofing products are lightweight & easy to handle and cut.
Excellent durability, high recycled content and low environmental impacts using Air as insulator instead of CFC, HCFC, or HFC gases
Insulated Roof Decks, Metal/Steel Deck, Concrete Deck, Wood Deck, Roof Gardens, Green Roofs, Attics, Cathedral Ceilings & more
Modified Bitumen (SBS), Single-Ply membrane (TPO, EPDM, PVC), Built-Up Roofing (BUR), and Inverted Roof Systems
Ballasted Systems, Partially Adhered Roofing Systems (PARS), Adhesive Adhered Roofing Systems (AARS), and Mechanically Attached Roofing Systems (MARS)
Airfoam is an approved supplier for RCABC's Roofstar Guarantees in British Columbia.
Code Evaluation Report Thermal Insulation CAN/ULC-S701, ICC-ES AC12, ASTM C578 with Surface Burning Characteristics CAN/ULC-S102.2, ASTM E84 (UL 723), Intertek Listed & Inspected
¾ Hour Fire Rating for a Composite Wall Assembly with EPS c.i. CAN/ULC-S101, ASTM E119
Meets NFPA 285 with specific limitations for an Exterior Wall Assembly with EPS c.i.
BRYX.R7726 - Foamed Plastic Surface Burning Characteristics ANSI/UL 723
TGYVC.R19427 - Roof Deck Construction Materials Fire Spread Under Roof Deck Assemblies CAN/ULC-S126
CDETC.R19427 - Rigid Roof Insulation Fire Resistance Ratings CAN/ULC-S101
TGKXC - Roof Deck Construction No. C7, C12A, C12B, C38
BXUVC - Roof Fire-Resistance Ratings Design No. R210, R222
|Property¹||Units||Korolite® Types||Test Std.|
|Third-Party Certified Type||Canada||1||1+||2||2+||3||CAN/ULC-S701|
|Compressive Resistance2 Minimum|
|@ 10% Deformation||psi||10||13||16||20||25||40||60||ASTM D1621
|Thermal Resistance3,4 Minimum @ 24°C [75°F]|
|R-value / inch thickness
||ft²•hr•°F/ (BTU•in)||3.75||3.8||4.04||4.1||4.27||4.27||4.3||ASTM C518|
|RSI / 25mm thickness
|Water Vapor Permeance4
Max. @ 1" [25.4mm] thick
|perm||5.0||3.5||3.5||3.3||2.3||2.3||2.3||ASTM E96 desiccant|
|USA||4||3||3||3||2||2||2||ASTM C272, 1 day|
|Canada||6||6||4||4||2||ASTM D2842, 4 days|
|Density||Nominal6 lbs/ft³||1||1¼||1½||1.65||2||2½||3||ASTM C303 or D1622|
|Dimensional Stability||% linear
7 Days @ 70±2°C
|Additional Thermal Resistance Information3,4,6|
|R-value / inch thickness||ft²•hr•°F/ (BTU•in)||@25°F||4.2||4.4||4.6||4.6||4.8||4.8||4.8||ASTM C518
¹ The test methods used to determine the material properties provide a means of comparing different cellular plastic thermal insulations. They are intended for use in specifications, product evaluations and quality control, but they are not intended to predict end-use product performance. ² The elastic limit is between 1% and 2% strain. Compressive resistances at 10% strain are provided for applications where the intended end-use can tolerate plastic (permanent) deformation under load. ³ R means resistance to heat flow. The higher the R-value, the greater the insulating power. 4 Values are for 1 inch or 25mm thick samples with natural skins intact. Better values will result for thicker materials. 5 The lab-test methods for water absorption use complete submersion under a head of water for 24 or 96 hours, so the values are applicable to specific design requirements only when the end-use conditions are similar to test method requirements. 6 not part of all the industry consensus standards (ASTM C578, CAN/ULC-S701) and provided AS-IS solely for informational purposes
Expanded Polystyrene (EPS) resists mold & fungi growth per ASTM C1338 and has no nutritional value for insects. To protect against termites place adequate physical barriers such as membranes around below-grade EPS.
Max. Service Temperature: Long-Term Exposure 75°C [167°F], Intermittent Exposure 80°C [176°F]; Thermal Expansion coefficient: 5-7 •
Solubility: Insoluble in water and in general chemically inert. EPS dissolves in hydrocarbons (e.g. fuels, oils, tar), organic solvents (e.g. acetone/ketones, benzene, paint thinner), ethers, esters, aldehydes and amines. Capillarity: None
UV-light surface degradation: white EPS can be exposed to direct sunlight for a few weeks. Prolonged exposure to ultraviolet light creates a yellow dust on the surface of EPS products which has negligible impact on the products' properties but may require removal before adhering other materials such as stucco or self-adhesive membranes.
Surface Burning Characteristics Canada CAN/ULC-S102.2: Flame-Spread Rating ≤290, Smoke Developed Classification over 500. USA ASTM E84 (UL 723)ª: Flame Spread Index ≤25, Smoke-Developed Index ≤450 up to 6" thick
Limiting Oxygen Index: min. 24% per ASTM D2863. Airfoam's EPS for construction applications contains a polymeric (non-HBCD) fire retardant modifier.
CAUTION: EPS products are combustible and must not be exposed to excessive heat, sparks, open flames, or any other sources of ignition. A protective barrier or thermal barrier is required as specified in the appropriate building code. If stored/used in closed containers, confined, or low-lying areas, ensure adequate ventilation to prevent accumulation of flammable pentane vapours. Prevent inhalation of smoke, fumes or dust from burning or fabrication activities. GHS Classification: Non-Hazardous, see SDS
ª Ceiling measurement only, conducted through determination of flame spread index and smoke-developed index with the removal of any contribution of molten materials ignited on the floor of the Steiner tunnel.