At this speed you would require a curb specifically designed for hurricane winds.
Roof top unit anchoring to curb detail.
Wrap the unit with two metal straps and attach the strap ends to the equipment stand with two side by side 14 screws or bolts at each strap end.
The combined weight of the unit accessories and curb should be evenly spaced between a.
Installer s guide roof curb packaged rooftop units.
Roofing may be completed after setting the unit.
Roofi ng may be completed after setting the unit.
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As noted with the seismic stamped curbs the hurricane rated curb calculation is based upon the assumption you will properly anchor the curb to the building s roof and the curb to the mechanical equipment in accordance to the submittal specifications.
6 strap or latch equipment access panels.
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Refer to figure 17 and tables 1 and 2 for specific center of gravity corner weight information and accessory weights.
Include a footnote in the mechanical and skylight sections that reads all roof curbs are specified in 07720 curb installation should be a part of the roof deck not on top of insulation or roofing materials.
The rooftop unit as well as that of the curb.
Flat curbs see figure 7.
Typical curb styles the following are typical curb styles used with york solution roof mounted outdoor units.
The rooftop unit may be mounted immediately after the curb is installed.
Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation.
The base of the condenser unit should be anchored to the equipment stand and the stand should be attached to the roof.
The attachment of the curb itself also needs to be designed and specified.
Potential at the anchor point it is recommended that the cables be adequately anchored to the equipment curb rather than anchored to the roof deck.
Units may be set either lateral or parallel to the roof support members.
Unit and the curb to provide a watertight connection.
To avoid wind and windborne debris damage to rooftop ductwork it is recommended that ductwork.
Prior to setting the unit onto the curb the installer must ensure that a sealing material is positioned between the unit and the curb to provide a watertight connec tion.
They can be selected to fit the specific type of roof such as flat pitched or ridged.
The rooftop unit may be mounted immediately after the curb is installed.