Product Description

FOAMULAR® CW25

2.5 in. x 16 in. x 8 ft. R-12.5 Squared Edge Insulation Sheathing

Designed for masonry cavity wall applications, FOAMULAR® CW25 extruded polystyrene (XPS) insulation is virtually impervious to moisture. This moisture resistant property—along with its high R-value, light weight, competitive price and wide range of sizes—makes it ideal for use in a cavity wall system. Pre-cut 16″ wide boards yield fast, labor saving installation.

Key Features

• Excellent long-term stable insulating performance of R-5 per inch.
• Exceptional moisture resistance, long-term durability
• Limited lifetime warranty2 — maintains 90% of R-value and covers all ASTM C 578 properties
• The only XPS foam to be GREENGUARD Children & Schools CertifiedSM
• The only XPS foam with certified recycled content— certified by SCS Global Services to contain a minimum 20% recycled content
• Will not corrode, rot or support mold growth
• Zero ozone depletion potential with 70% less global warming potential than our previous formula
• Lightweight, durable rigid foam panels are easy to handle and install
• Easy to saw, cut or score

Not for use in roofing. For roofing applications, use FOAMULAR® THERMAPINK® XPS insulation

Owens Corning’s FOAMULAR® extruded polystyrene insulation is an ENERGY STAR® qualified product.

To learn more about rigid insulation R values click here