The CYCLONE® Steel Housing (CSH) provides a secure, multi-penetrant pathway to the roof in tornado- and hurricane-prone areas. This three-piece assembly includes a removable lid, middle housing, and flanged curb, which work in conjunction with our RPH Exit Seals™ to create a weather-tight seal around pipes, cables, ductwork, and other penetrants of varying sizes.
The CYCLONE® Steel Housing (CSH) is third-party tested to meet ICC 500-2014 and FEMA P-361 requirements for wind speeds up to 250 mph, including missile impact. Units are fabricated from 3/16" carbon steel and protected with an industrial-grade coating for long-term durability.