There are several distinct types of roof water drains and roof drain downspout in Auburn, AL and each is an unique approach to the wide range of roof types and their drainage concerns. You should think about the type of roof, its dimensions, and its roof pitch to be able to pick the correct drain. You also may want to take into account the site of the drain, what amount of rainwater is anticipated and safe practices when selecting a roof water drain for a residence or business building. Gambrel, dormers, hip and gable roofs shed water thanks to gravitational force. Flat roofs, on the other hand, collect rain water. Until the water is guided out and away from the roof , it will create pools of water that could inevitably leak and the amassed weight may eventually result in damage to the structure. That is why roofs with a slope of under two percent ought to have roof drains located in the lowest spots on the roof where water pools and should be evenly spread all throughout the roof surface.
Kinds of Roof Drains
There are a number of distinct variations of roof drains. They basically fall into two categories: flat roof drains and pitched roof drains. Pitched roof drains normally comprise gutters that accumulate rainwater that passes by means of gravity to the roof periphery. Gutters channel this water towards downspouts which steer the water flow down and away from the structure or in to sewers. Flat roof drains can be one of three main types: scuppers, inner drains or siphonic drains.
Roof Drain Scuppers
Scuppers are situated on the roof's perimeter. They can also be put in on a balcony or terrace. Small openings are cut in the side of the roof structure so rain water can flow out and drain the roof surface. Scuppers can attach to a downspout, or can be lengthened to make sure that water is directed off of the building sides and foundation.
Inner Roof Drains
There are quite a few different kinds of inner drains for flat roofs. These are positioned at low areas in the roof and attach to inner drainage pipes that direct water outside or into a sewer system. Several models of internal roof drains have domes, strainers or covers that prevent trash from clogging the roof drain pipe. These kinds of drains work via gravity channeling standing water through the roof drain system. They are constructed from PVC, cast iron or cast aluminum.
Siphonic Roof DrainsSiphonic roof drains are a more effective alternative to gravity drainage. Traditional flat roof drainage allows both air and water to enter the drain system producing pipe space which is occupied by both air and water. By incorporating an engineered baffle to the sump of the drain body it creates a siphonic drain which removes air from the system and permits smaller pipe diameters to be used. When all air is removed, a negative air pressure in the tail portion of the drain is set up which pulls water off the roof siphonically. Though used primarily for flat roofs, siphonic drains can also be set up on pitched roofs.
If you need more information about flat roof drain or roof drain downspout in and around Auburn, Alabama, give us a call. We'd be glad to help.