Overflow Scupper Drain

Where you can drain over the wall the overflow drain must be at least the same size as the regular drain and located no more than 2 above the low point of the roof.

Overflow scupper drain.

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The installation and sizing of secondary emergency overflow drains leaders and conductors shall comply with sections 1106 and 1108 as applicable of the international plumbing code. The scupper may channel water off the roof into a conductor box with a downspout or a gutter or with overflow scuppers it may let the water run freely down the side of the building. Where you must drain through the wall with a scupper the overflow must be three times the required size of the roof drain and have a minimum height of 4 and again be. Inside wall parapet drain has cad.

Scuppers shall not have an opening dimension of less than 4 inches. Overflow scuppers should be carefully positioned to prevent excess water from remaining on the roof if the regular scuppers become clogged. Scupper drain has cad. Menzies clamp tite overflow scupper drain sells for 124 09 and ships across canada and the united states.

1502 2 roof assemblies and rooftop structures secondary emergency overflow drains or scuppers. A primary scupper in a parapet wall with a conductor head and a downspout and an overflow scupper. Thunderbird copper separate parapet overflow drain. This detail illustrates the installation of an overflow scupper.

Thunderbird copper roof scupper. Separate overflow drain has cad. Thunderbird copper inside wall scupper drain with overflow. Section 1503 4 2 scuppers when scuppers are used for secondary emergency overflow roof drainage the quantity size location and inlet elevation of the scuppers shall be sized to prevent the depth of ponding water from exceeding that for which the roof was designed as determined by section 1611 1.