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.
Seismic roof curb.
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.
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.
The curbs should be anchored to structural steel concrete as fallows.
Bolts should be with nuts and washers.
Steel shall be at least.
As wide as the base plate of the curb.
Vibration isolation roof curb and rail.
Seismic roof curb detail.
The additional requirements are detailed on each stamped submittal drawing.
Additionally seismic requirements are not fulfilled by just ordering a seismically stamped roof curb.
The width of the supporting structural.
Heavy duty complete vibration isolation roof curb and rail for over 20 ton packaged rooftop units.
The conclusive value will be between 0 and 3 73 highest value in california.
The goal is to match or exceed the seismic roof curb design value referred to as the ss value.