These drains are distinguished by having higher rims.
Flat roof drain with overflow.
Our exclusive dual functional structural deck flange and combination roof drains streamline specifications saving installation time and labor.
Cast iron roof drain with 2 in.
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Where you have roof drains you are also required to have overflow drains.
Where roof drains are required secondary emergency overflow roof drains or scuppers shall be provided where the roof perimeter construction extends above the roof in such a manner that water will be entrapped if the primary drains allow buildup for any reason.
In addition to the primary roof drains there will also be overflow drains which are used for redundancy and sized in the same manner.
As we will see in steps 3 4 the size of the roof drain lines is dependent on the square feet of the roof area being served by each roof drain.
Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs.
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P 1503 4 1 secondary emergency overflow drains or scuppers.
The one challenge with flat roofing is ensuring proper drainage.
Copper roof drain with overflow horizontal outlet.
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The 2006 international residential code specifies the size and locations for overflow drains on residential structures.
Smith carefully designs and manufactures a full line of roof drains deck drains scupper drains promenade and parking area drains and more to satisfy both the artistic eye of the architect and the calculating mind of the engineer.
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Unlike other roofing types that are slanted or sloped to allow water to drain automatically flat roofs need a built in drainage system to help remove moisture and debris.