Seismic Roof Curb

Heavy duty complete vibration isolation roof curb and rail for over 20 ton packaged rooftop units. Kinetics esr features high frequency noise isolation pads code compliant seismic and wind restraint and access ports for each isolator to inspect level or change springs after equipment placement. Ss is the mapped maximum credible earthquake five percent dampened spectral response acceleration parameter at short periods as defined in asce 7 10 section 11 4 1.

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Seismic roof curb detail.

Seismic roof curb.

The goal is to match or exceed the seismic roof curb design value referred to as the ss value. As wide as the base plate of the curb. Additional roof curb anchoring and methods of securing equipment to the curb are also a requirement and must be adhered to for the certification to be valid. For buildings seismic requirements our seismic factory roof curbs are new construction curbs for hvac units on flat membrane or built up roofs requiring seismic rating.

Seismic roof curbs isolation roof curbs also protect the occupants inside the building by preventing the rooftop packaged unit from jumping off the curb during a seismic event and potentially falling through the roof structure. The additional requirements are detailed on each stamped submittal drawing. These curbs come fully assembled with return and supply duct supports unit wind restraints and fiberglass as required and gasket material included for airtight rtu installation. Steel shall be at least.

Bolts should be with nuts and washers. The curbs should be anchored to structural steel concrete as fallows. Additionally seismic requirements are not fulfilled by just ordering a seismically stamped roof curb. Vibration isolation roof curb and rail.

The conclusive value will be between 0 and 3 73 highest value in california. The width of the supporting structural.