The result is the number of drains needed.
Where to get a flat roof drain.
Fitting the roof with one of the following systems to ensure proper drainage will help keep it protected.
The above sizing data is offered as a guide only.
Inner drains are found many times on large building roofs.
Scuppers on commercial and residential roofs are high efficient drains.
The most efficient drain for flat roofs.
Gutters are cheap to install and effective so are one of the most common draining methods for flat roofs in residential homes.
Ensure your drains are the lowest points on your flat roof and you can avoid water infiltration and subsequent flat roof repair.
Drainage pipes are placed under the roof or in the parapet wall to make sure that the space looks good and no pipes are visible.
Flat roof drains are the most critical components of any commercial roof.
Interior drains work just like the drain in your shower or sink.
Flat roof drains scuppers gutters and drainage systems on flat roofs.
One of the most overlooked items on a flat roof is the draining system.
More attention should be given to the location of a drainage system to avoid future problems.
There also needs to be an overhang from the roof to the guttering to avoid splashing or spilling.
Check this page out about scuppers.
These are most appropriate for large roofs.
Drains are responsible for removing water quickly and efficiently.
They re good because you can place them wherever you need to and a custom filter can be used to prevent clogging.
Namely if a drain clogs the water pools on the roof deck.
They attach to pipes that drain the water down through the building s roof.
Inner drains are located in central areas of the roof and are connected to pipes underneath the roof that drain the water to a sewer.
These can be used on large flat roofs as well as residential.
Flat roof drains on commercial flat roofs.
Inner drainage is common to most commercial properties.
Residential homes may also have this type of commercial roof installed.
Challenges the drains must allow a large volume of water equal to the square footage of your roof times the number of inches of rain to drain quickly.
The challenge with flat roof inner drainage systems.
Leaving your flat roof without a drainage system will greatly increase the risk of these issues.
Calculate drains needed.
Take the roof s total square footage and divide by the total square footage handled by one drain.
The drains are usually placed near the center of the building.
This table is based on zurn s roof drain vertical requirement for horizontal roof areas at various rainfall rates table.
