SPECIFICATION N

COMPLETE ROOFTOP SPRING CURBS In 1982 we showed the following method for increasing deflection by suspending units from springs on top of a steel frame work and using the CMAB curb without springs as the seal. There were 3 or 4 very successful installations, but the method was too cumbersome and expensive. We found the…

SPECIFICATION M

CURB MOUNTED ALUMINUM BASES NOMINAL 1”(25mm) DEFLECTION Not too many years ago, cooling towers and curb mounted exhaust fans were the only pieces of mechanical equipment to be found on rooftops. This has all been changed as curb mounted air conditioning equipment is commanding a larger share of the market. While rooftop equipment manufacturers do…