How To Put In A Roof Drain

The most logical place to put the drain is at the lowest area of the roof.

How to put in a roof drain.

The roof should slope toward the drain. The placement of the drain to other rooftop units should be carefully determined. Appendix b in the ipc provides rates of rainfall for various u s. If the drain was messed up by other roofers then the second best thing to do is to install a retrofit.

Screw a drain cover over the end of the tubing as it approaches daylight to keep critters out. Flat roof drains scuppers gutters and drainage systems on flat roofs. To prevent erosion make a rock bed around the end of the tube. I usually dig a trench about 12 to 14 inches deep for downspout drain lines.

Size vertical storm drainage piping. Cities based on inches per hour that may fall during a storm of one hour duration and a 100 year return period. It is crucial to have a proper drain for a flat roof. Size horizontal storm drainage piping.

If you have hard clay soil or rocky soil you can use an electric hand held demolition hammer tool to dig a trench. One of the most overlooked. Even though it is called a flat roof it is not actually flat and instead has a very minor slope to it. Regardless of the type of leaf filter you have you still need to do regular maintenance to keep it clean from debris.

Step 3 fit the drain. The fastest way is to rent a trenching machine from a local tool rental. A drain strainer must be designed to allow small debris and water to flow freely to the drain. The drain is typically placed along the edge of the roof but it can be placed anywhere that you think it will do the most good.