Korolite® Expanded Polystyrene (EPS) is a high-performance, closed cell, rigid foam insulation material that uses air as main ingredient. EPS insulation resists moisture and mold/fungi growth with low environmental impacts, high Long-Term Thermal Resistance, and good drying potential over the long service lives of buildings.
Adding continuous insulation (c.i.) offers higher effective insulation values than adding similar amounts of cavity-insulation and it greatly reduces the risk of condensation, rot and mold on framing members with proper detailing & installation. All Korolite® types are available in various standard and customized sizes & thicknesses and can be factory-tapered.
Exceptional Insulation Value
Budget-friendly, stable Long-Term Thermal Resistance (LTTR) resists moisture and many other adverse effects at the highest insulation value per dollar spent
Cozy, Healthy Indoor Environments
Continuous insulation blanket with no formaldehyde nor off-gassing during normal use, does not promote the growth of mold or mildew
A Breeze to Design & Install
Design flexibility, versatility, and support for all your project needs, available in many compressive strengths and thicknesses. For high jobsite productivity, EPS products are lightweight & easy to handle and cut.
Excellent durability, recycled content and low environmental impacts using air as insulator instead of CFC, HCFC, or HFC gases.
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.
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