Minimum Roof Curb Height Code

Overflow drains having the same size as the roof drains shall be installed with the inlet flow line located 2 inches 51 mm above the low point of the roof or overflow scuppers having three times the size of the roof drains and having a minimum opening height of 4 inches 102 mm shall be installed in the adjacent parapet walls with the inlet.

Minimum roof curb height code.

1 inch 6 gutter width. Fasteners for asphalt shingles shall be galvanized stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 2 67 mm shank with a minimum 3 8 inch diameter 9 5 mm head of a length to penetrate through the roofing materials and a minimum of 3 4 inch 19 1 mm into the roof sheathing. 1 2 inch 5 curb face and apron radius. The mall re roofed about 2 years ago and as is typical they installed about 4 inches of insulation which lowered the curbs height from 12 to about 8 inches.

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. 12 inches 2 curb top in width. Put in 4 curb and permit overhang. In some specific cases i eliminate the use of wheel stops a tripping hazard on parking adjacent to wide islands by adding two feet to the island and reducing the parking space length by two feet.

Seattle has adopted the 2015 international building code with amendments specific to our city. 6 inches 4 curb face slope in six inches. Roof mounted mechanical units shall be mounted on curbs raised a minimum of 8 inches 203 mm above the roof surface or where roofing materials extend beneath the unit on raised equipment supports providing a minimum clearance height in accordance with table 1509 7. 6 inches 3 curb face in height.

In no case should the curb be less than 14 inches in height. Code interpretations electrical code existing building code elevator code energy code fire code mechanical code residential code what is it. Curb height also is determined by other factors. 18 inches 7 gutter thickness.

Bottom flange top flange and drip. 6 inches 8 gutter slope to curb face. The seattle building code sbc provides minimum requirements for design and construction of new buildings. If the curb does not include a counterflashing receiver.

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. Such as need for curb side drainage enclosure after repaving. 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. 1 back wall of curb in height.

See figure 6 6. Contractor called yesterday about the minimum curb height on a roof top unit.