Combination overflow roof drains.
Roof drain and overflow drain.
Overflow drains shall be the same size as the roof drains with the inlet flow line two inches above the low point of the roof and shall be installed independent from the roof drains.
By the 1997 edition of the upc section 1101 11 2 had been added that completely prescribed where and how secondary roof drainage was to be provided.
Copper roof drain with overflow horizontal outlet.
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Cast iron roof drain with 2 in.
In addition to the primary roof drains there will also be overflow drains which are used for redundancy and sized in the same manner.
Includes powder coated sump receiver roof drain and overflow fixtures.
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.
Combination overflow roof drains.
These drains are distinguished by having higher rims.
Josam 22100 combination roof drain overflow.
Enamel coated cast iron body gravel guard and dome strainer.
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.
Roof drain overflow.
Cast iron roof drain.
Install drain and overflow fixtures side by side using one sump receiver.