Flat roofs that are designed to have scuppers as a drainage system are almost maintenance free.
Flat roof scupper drain detail.
Regular cleaning and unblocking of the drains gutters and scuppers is mandatory.
There are three types of drain systems commonly used on flat roofs.
Scuppers will play one of two roles in a roof system.
An overflow drainage system will be designed to function independently of the primary system to drain water from the roof.
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6 24 2014 david howard aia said.
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.
Firestone has developed cad drawings of its tpo installation details to assist roofing professionals with the specification of firestone tpo roofing systems.
A canale roof scupper is a spout drain installed in the parapet of a flat roof building to drain rainwater.
Unlike most industry standard roof canales made of wood and sheet metal which deteriorate rapidly in a few short years our fiberspan concrete canales roof scuppers endure the most extreme of weather conditions for many years.
Scuppers are used to provide an outlet through parapet walls or gravel stops on flat and built up roofs to allow drainage of excess water.
Download free high quality cad drawings blocks and details of roof drains organized by masterformat.
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.
Scuppers can be installed to carry water into gutters or directly into downspouts through conductor heads.
The detail drawings are grouped by details and can be downloaded below in dwg or pdf format.
In short a scupper is a detail that provides drainage to a roof system by allowing the water runoff from the roof to exit the roof through a metal edge parapet wall or through the deck into a downspout or leader not run through the interior of the building.
Open end scuppers allow for debris to be washed off the roof unlike a drain or gutter that gets full of debris.
A major maintenance issue shared between all types of roof drains is debris removal.
They will either be a part of the primary drainage system or they will be a part of the secondary overflow drainage system a primary drainage system is designed to remove water from the roof as quickly as possible.
Each of these systems can become clogged by debris.
They can be used in conjunction with gutters and downspouts to divert the flow to the desired location.
Debris and small objects will not get stuck.
