Flat Roof Drainage Downspout

There are three types of drain systems commonly used on flat roofs.

Flat roof drainage downspout.

Ponding water on flat roofs reduces the roof s lifespan. This flexible downspout extension easily bends and holds its shape and can be extended from 25 55 in. To prevent erosion make a rock bed around the end of the tube. Each of these systems has its own pros and cons.

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. Scupper drainage systems are characterized by chutes cut out of the parapet walls which extend above roof level. The greenslope roof ponding repair kit provides a lightweight inexpensive solution to flat roof ponding. They catch rainwater as it rolls off the edge of the roof and divert the water into a downspout that dispenses it a safe distance from the foundation of the building.

Featuring durable plastic construction this extension can be buried bent or connected to additional sections. More attention should be given to the location of a drainage system to avoid future problems. A major maintenance issue shared between all types of roof drains is debris removal. Flat roof edging and gutters.

Screw a drain cover over the end of the tubing as it approaches daylight to keep critters out. Each of these systems can become clogged by debris. 6 24 2014 david howard aia said. Typically water is collected by an external leader head catchment that feeds into a downspout installed.

Use this downspout extension to divert water away from the foundation or connect to drainage pipe and catch basin to control drainage. There are several drainage options to repair pooling or ponding water on flat roofs including internal drains gutters and downspouts scuppers and roof leveling compounds. Typically flat roof drainage systems fall into one of the following categories. During winter gutters can get full of ice if it is not cleaned out before cold sets in.

Flat roofs should be pitched or sloped towards gutters for positive water flow even when they are we often see that the edge of the roof is slightly higher due to a tar build up from repeated repairs preventing water from flowing into the gutter. Regular cleaning and unblocking of the drains gutters and scuppers is mandatory. Where the tube passes by the downspout from the gutter we installed a y fitting and drained the roof water from the gutter system directly into the main drainage line. Gutters are the most commonly used and most cost effective drainage solution for flat roofs.