Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs.
Roof drain detail massachusetts.
Tapered backwashes can also help reduce the insulation height at the roof edge.
Backwash detail backwash overlayed on adjacent flat over structural slope when roof drains are located a great distance away from a sloped roof edge more than 48 it can be more cost effective to use a tapered backwash.
When a secondary roof drainage system is installed it shall discharge independent of the primary building storm system and shall terminate a minimum of 18 above grade in an area that will be visible to the people who occupy the building.
21500 q606 roof drain.
Green roof drain plaza planter perf standpipe mesh covered dome.
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.
Please contact us for support in determining which details are most pertinent to your individual project.
21500 q605 roof drain.
Green roof drain planting area uses a 2450x 27 series.
Download free high quality cad drawings blocks and details of roof drains organized by masterformat.
Roof drains must be firmly secured to the roof with an underdeck clamp otherwise due to snow loads rain loads and reg ular expansion and contraction the drain will work in and out of the roofing causing roofing membranes to flex and fail.
Typically a low slope roof is designed with one primary roof drain and one secondary roof drain or overflow scupper drainage outlet.
21500 q602 roof drain.
Green roof drain planting area pvc standpipe top section is 32100.
This system shall be compliant with all federal state and local codes.
Interior roof drains is determined by structural requirements limiting deflec tion and by plumbing requirements based on vertical drain leader diame ter roof slope roof area per drain and rainfall rate.