Parts Of A Roof Drainage System

It has an angled outer wall that directs the flow of water into gutter sections.

Parts of a roof drainage system.

In either case the discharge shall be located so that it is readily visible by building occupants. The first step in sizing a roof drain is to calculate the surface area of the roof that the. Roof drainage system considerations part 2 september 2020. Has two adjoining gutters cut on 45.

Secondary drainage shall be provided through the use of sidewall scuppers or internal roof drains. Connects the gutter to the downspout. It is also called a clamp collar clamp ring or flashing ring. An interior drain has several components.

The end part that closes the gutter so that water or stray debris won t flow out. By mike silvers cprc frsa technical director mon sep 21 2020 the core of that article stressed the importance of not reducing the size of any type of roof drainage. Watts drainage products rd 300 r series 4 in. And not to do anything that can cause the roof to hold more water either during or after a rainfall than it was.

Secondary or emergency roof drainage is required wherever the buildup of water is detrimental to the roof structure. The top of the interior drain is a mesh or strainer that prevents debris from entering the. Connects troughs to keep the water flow off the roof and away from the property. Dome strainer or cover.

Drain ring a metal ring placed around the drainpipe to secure the roof drain to a surface such as a roof deck or parapet wall. A substantial portion of the rdca product portfolio is made up of specification driven half round gutter round downspout large custom gutter large k style and 3 4 and 4 5 heavy gauge corrugated downspout. Watts drainage products rd 300 r series 6 in. The vent allows the entire drain system to maintain equal air pressure.

Some a c installers use an aluminum downspout to cover the refrigerant and condensate lines that are routed from an attic mounted air handler down to an outdoor. Cast iron roof drain with 2 in. Boot a transitional pipefitting used to convert and connect a drain s downspout to the building s storm system. No hub cast iron high volume roof drain with ductile iron dome.

The upper part of the vertical soil stack provides the venting component of the dwv system. A watertight ring holds the drain and strainer together around the roofing membrane and prevents. Roof water drain types and sizing sizing a roof water drain. Conventional gutter systems such as those used on most houses are suitable for some low slope roofs.