A gravity drainage system on a flat roof differs from the gutter system you find on residential roofs in two key ways.
Internal drainage system for flat residential roofs.
Roofs of this design will have one or more roof drains or scuppers installed.
They are often positioned towards the center of the roof or the place where the slope of the roof allows water to collect.
At page top and at left our photos show a low slope roof surrounded by a parapet.
Internal drains 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.
They assist in keeping any debris from clogging the drain.
The one challenge with flat roofing is ensuring proper drainage.
These drains are like the drain at the bottom of your shower except that the roof drain has a larger strainer to protect it from debris.
Appropriate for large roofs inner drains help in draining the water away from the building.
An interior drainage system makes use of several drains spaced across the surface of the roof most.
Inner drains are customizable as an attractive feature of your flat roof.
These ditches guide water toward the eavestroughs.
Of all of the methods used to prevent water buildup on flat roofs there is one that is by far the.
Drainage ditches are created in the roof in the lower insulated areas.
While one goal of gutters is to drain the water out and away from your home s foundation for structural protection they mainly work as a great solution for home s or commercial buildings with flat roofs.
Poor drainage can lead to serious issues with flat roofing from leaks to structural damage.
They require aluminum or copper inserts to be installed in roof areas where water is common.
Most roofs both flat and slanted come equipped with a gutter system.
Internal drainage systems are another affordable solution that can also connect with existing drainage systems.
The drainage requirements for flat roofs on buildings present some special problems that we describe and illustrate here.
Increase your building s curb appeal and beauty with custom fittings.
Strainers for inner drains are best when custom made to fit your roof and your particular climate.
These can be used on large flat roofs as well as residential.
Drainage helpers drainage helpers are a good option if you already have a good flat roof drain system but want to provide your system with the ability to move more water if need be.
Spring systems are attached to the drainage inserts to lead the water through a side wall outside of the building.
It s the most popular drainage system for the average roof.
They re good because you can place them wherever you need to and a custom filter can be used to prevent clogging.
The drainage pipes are placed under the roof and in the walls of the building.
Watch for clogs blockage at the roof drain or scupper.
