Flat Roof Drain Detail

But now flat roofs often are constructed with fewer layers because of improved waterproofing technology.
Flat roof drain detail. This air baffle is engineered and tested to prevent air from entering the piping system at peak flows. Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs. What is the general area of a flat 1 4 1 0 slope single ply roof for each roof drain ratio for the number of roof drains roof area. Open end scuppers allow for debris to be washed off the roof unlike a drain or gutter that gets full of debris.
The detail drawings are grouped by details and can be downloaded below in dwg or pdf format. Other than the baffle a siphonic roof drain has the same features as a traditional roof drain including a. Inner drains gutters or scuppers each have their own function and deciding which system is best depends on. Flat roof drains scuppers gutters and drainage systems on flat roofs.
Along with the benefits of a flat roof come unique challenges. Flat roofs are hard to replace. The most critical of these issues is the flat roof drainage systems. Alwitra flat roof details.
To design a sloped or flat roof drainage system we need to know the anticipated maximum rainfall rate and the flat or projected roof area. Hold your cursor over the file name to view when a drawing was last updated. The distinguishing feature of a siphonic roof drain is the air baffle. Firestone has developed cad drawings of its tpo installation details to assist roofing professionals with the specification of firestone tpo roofing systems.
More attention should be given to the location of a drainage system to avoid future problems. Your building and location can help determine which drain will fit your roof needs. 6 24 2014 david howard aia said. This could mean flat roofs may not raise the same red flags they used to.
A siphonic roof drain looks much like a traditional roof drain. Details and technical drawings of the flat roof drainage as downloads in the practical pdf dxf and dwg formats. One of the most overlooked items on a flat roof is the draining system. Download free high quality cad drawings blocks and details of roof drains organized by masterformat.