0 20 inches 5 ft.
Roof curb height requirements.
Maximum height of tallest wall will be 42 00.
The curb should provide a minimum clearance of 10 inches between the top of the finished roof surface and the top of the wood nailer continuous around the curb perimeter.
Specify prefabricated roof curbs and related products by a roof curb manufacturer not with or by the equipment manufacturer.
Flat or sloped.
Specify prefab roof curbs for use with all roof penetrations and roof mounted equipment including and not limited to hvac units duct openings pipe penetrations power roof exhauster intake and relief vents flues or job fabricated items.
Curb height is the height of curb at shorter wall.
Curb heights vary in increments of 4 00 from 14 00 to 34 00.
Vibration isolated curbs see figure 12 vibration isolated curbs is available on a special quoted basis.
In no case should the curb be less than 14 inches in height.
Paint color can be useful to know as well since rooftop curbs can be custom painted to match your roof.
The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures.
0 25 inches 6 ft.
Windows and doors are to be a minimum of 16 above the roof line.
See figure 6 6.
The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process.
This is a minimum flashing height.
All mechanical equipment is required to be set on a structural roof curb attached to the roof deck.
Minimum flashing height requirements are 8 for all mechanical skylights wall flashings or any other item that extends above the roof line.
Prior to the application of roofing materials the roofing contractor should make a visual inspection of the deck surface to see that it is ready for the application of roofing materials.
Regardless of the model a roof curb is used to mount the assembly so that it sits securely and the hole through the roof is protected.
