Flat Green Roof Drainage

The most critical of these issues is the flat roof drainage systems.

Flat green roof drainage.

Along with the benefits of a flat roof come unique challenges. 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. For flat or nearly flat roofs primary drains are located at the lowest point of the roof. Green roof solutions gr32 and gr52 drainage panels come in 24 x 24 interlocking squares constructed of 100 recycled high density polypropylene hdpp.

The drainage layer is applied over the entire roof area. A function of the drain layer is the application of a root resistant filter fabric. Unlike other roofing types that are slanted or sloped to allow water to drain automatically flat roofs need a built in drainage system to help remove moisture and debris. Roof leveling compounds.

Secondary overflow drains are located at a higher point on the roof. Increasing the angle of a flat roof will always increase the speed of water movement across the surface. These can be used on large flat roofs as well as residential. For a large roof it is recommended to have drains placed at multiple locations within the area of the roof.

The gr52 can withstand 0 352 gallons per square foot or 1 4 gallons per panel. A rooftop garden or additional outside living space are the top reasons people choose flat roofs. It forms an extremely stable and pressure resistant sub base and sometimes serves as an additional thermal air layer. The drainage of flat roofs is essential to drain off rain water and to protect the roof against moisture damage and warping.

The drainage system of any roof can be located at the edge or in the middle of the roof. Zurn is proud to introduce its green roofing drain product line specifically suited for the unique needs of a green roof installation. There are a number of drainage options for flat roofs to combat ponding. Poor drainage can lead to serious issues with flat roofing from leaks to structural damage.

The one challenge with flat roofing is ensuring proper drainage. Your building and location can help determine which drain will fit your roof needs. The grs gr52 panel size is 24 x 24 x 2 125. Flow of water into them is promoted by positive drainage.

Greenslope is a roof leveling compound that helps eliminate water ponding areas and facilitate flat roof drainage. Having proper drainage on a green roof is a critical aspect of the system.