Keep the wall cavity warmer than non insulating sheathings in cold weather.
Dow cavity wall insulation.
From dow building solutions.
An extruded polystyrene foam insulation board with square edges on all four sides.
Designed for masonry cavity wall applications foamular cw25 extruded polystyrene xps insulation is virtually impervious to moisture 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.
Thermosetting resins from dow can be used as an alternative to traditional formaldehyde based resins for binding mineral fibers in the production of insulation blanket products that go into building insulation systems and specialty insulation.
Special 16 width makes it easy to fit between brick ties in cavity wall applications.
Reduce air flow through the wall assembly.
Reduce water vapor penetration into the wall from the outside in warm weather.