IAPMO PS 120-2019 Flashing and Stand Combination for Air Conditioning Units.....
Description
Flashing and Stand Combination for Air Conditioning Units (Residential or Commercial Unit Curb)
1 Scope
1.1 General
1.1.1 This Standard covers residential or commercial unit curbs for use with air conditioning units and specifies requirements for materials, physical characteristics, performance testing, and markings.
1.1.2 The unit curbs covered by this Standard do not prevent their use for evaporative coolers.
