Minimum Roof Curb Height Code

1 back wall of curb in height.

Minimum roof curb height code.

Now the hvac contractor is going to be replacing some of the. Such as need for curb side drainage enclosure after repaving. 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. 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.

Contractor called yesterday about the minimum curb height on a roof top unit. 1 2 inch 5 curb face and apron radius. Comply with local code requirements for minimum curb height but in no case shall curb height be less than 18 inches as measured from top of bar joist to top of curb nor shall curb height be less than 8 inches as measured from top of roof membrane to top of curb. Put in 4 curb and permit overhang.

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. Curb height also is determined by other factors. 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. If the curb does not include a counterflashing receiver.

Code interpretations electrical code existing building code elevator code energy code fire code mechanical code residential code what is it. Bottom flange top flange and drip. Florida building code 2010 building 1509 7 mechanical units. 6 inches 3 curb face in height.

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. 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. Seattle has adopted the 2015 international building code with amendments specific to our city. 6 inches 4 curb face slope in six inches.

The seattle building code sbc provides minimum requirements for design and construction of new buildings. 6 inches 8 gutter slope to curb face. See figure 6 6. 1 inch 6 gutter width.

18 inches 7 gutter thickness. 12 inches 2 curb top in width.