#roofdrains

[digitexcavating]

Using the Hydrovac for some roof drain cleaning. Couple standpipes are full of river rock from the roof install. ✅👷🏻‍♂️🇺🇸 #foremost #rebelvacsystems #hydrovac #roofdrains #vacservices #cleandrains #ridgid #camera (at Cass County, Michigan) https://www.instagram.com/p/CiNlc9xr_hU/?igshid=NGJjMDIxMWI=

[saudicast]

What is Sump Roof Drain? And how to Install it.

To keep a building structure in good and reliable condition it is important to keep it protected against collection of water, as water poses a threat to the structure and decreases the life of the structure and makes it dangerous. Besides these, it will increase the maintenance cost of the building.

One of the important parts of the building that needs to be protected against the collection of water is its roof. Hence it is important to have a good roof drain, roof slope and elevation in place, that prevents the roof from ponding.

A Best Roof sump Drain acts as an outlet to drain the excessive water out from the roof, and it is specially used where roofs are flat and have low elevation. A good quality roof drain is ideally made of cast iron, and it consists of a grated dome at the top,  a bottom outlet and a membrane clamp.

How it works:

Water enters into the roof sump through the grate and drains out through the bottom outlet that is connected to the drainage pipe. The membrane clamp lies in between the top dome and the bottom outlet, and also holds flashing and roofing materials securely to the drain body. The dome grate provides sufficient free area for quick drainage of rain water and protects the drain sump and connected piping from choking by the intrusion of trash.

How a Sump Roof Drain is installed:

For efficient functioning, it is utmost important to install it correctly, and you sure need professional help. But still here is a simple guideline to understand how it should be installed:

A hole is cut on the roof, the size of the hole should be large enough to fix the sump roof and the drain pipe in it properly.

Once the drain pipe is fitted below the hole, set the sump roof drain, with of course the bottom outlet connecting properly to the drain pipe. Make sure good quality sealant is used between the sump roof and the drain pipe.

Screw the membrane clamps securely.

The surrounded area should be perfectly filled and coated with concrete, waterproof membrane and gravel fill, while taking care of the slope.

Fix the dome

Test it by filling the water on the roof.

Some important considerations:

Based upon vertical space between roof and ceiling, and some other factors, you need to determine whether you need a bottom outlet sump or a side outlet sump.

Based on the estimated amount of water to be drained out, you need to select the right outlet size and strainer free area. 

Some sump roofs come with extended perforated grates. If you fear of even smaller particles entering into the drain and choking it you can use these extensions.

Before purchasing a sump roof drain, check if the upper dome is removable. A removable dome can make it convenient to remove and clean it. The upper dome could either be made of aluminium or cast iron.

If you have limited space available, a smaller diameter body is recommended, which is also often used in inverted roof membrane assembly (IRMA). 

Hope the above points will work for you as a guideline to identify the right sump roof and install it accurately.

[saudicastuae-blog]

Drain Water from Flat Roof with effective Roof Drains

Flat roof often have problem of pooling of water due to lack of proper sloping. It may lead to some immediate as well as long term problems, like roof leakages and structural damages.

Here are some problems outlined:

Leaky roof

Sagging roof

Deterioration of roofing material and roof structure

Formation of algae, moss and plant growth

Weakening of the roof membrane

Water settled on roof could become a breeding ground for mosquitoes and other insects.

A plumber could suggest you to adopt one of the following solutions:

Make the existing drains wider

Increase number of drains

Get the proper sloping done on the roof

But there are other checks and fixes that you can do, so that you don’t face the problem again in the future.

First we need to understand three different types of roof drainage approaches, namely:

Internal Roof Drains

Gutter

Scupper

Drains are internal drainage systems which drives water out through pipes. Gutters are the open trays that runs along the edge of the roof and channelize it into a drain. Scuppers, are also similar to gutters, but instead of pushing water into the drain pipe, it throws out the water into a downspout through an opening in the roof wall.

How to improve the roof drainage?

The most obvious method to improve the drainage systems is to install more components to drain out the water. A specialist  like Saudi Cast will be able to tell you the best combination of components to install based on your roof area and design. These components might include, internal drains, gutters, scuppers and downspouts.

Besides getting the best quality components installed get your roof audited at least once a year. If you live in an area that face excessive rains it is advised to keep a water pump handy, and pump out the excessive water ponding on the roof.

Here are the most effective type of roof drains and its components available:

Large Sump Roof Drain: It is ideally used in inverted roof membrane assembly (IRMA) flat roof construction. It has an adjustable extension sleeve to adjust to different slab thickness. The benefit of this roof drain is that it can be connected to the pipe with drain body out and under the slab making the maintenance works easier when using thick slab. It has a dome that makes the draining quick through the large sump body and obstruct the debris to enter into the drain.

Deep Sump Roof Drain: It is similar to large sump roof drain, with a deeper sump. Both of the above roof drains comes with perforated filter.

Promenade Deck Roof Drain: It is installed at the surface level, used in flat roofs with pedestrian load.

Scupper or Parapet Roof Drain: It is installed at the periphery of the roof. However, it is widely used as a secondary roof drain system.

Gutter or Cornice Roof Drain: It is used in cornices, gutters, and other small overhanging areas where drainage of rainwater is required. Comes with bottom outlet as well as side outlet.

Roof Deck Indirect Waste Receptor: It is used to receive waste water used for excess water from Air Conditions, Cooling Towers and Mechanical Units.

Down spout nozzles: It is used as parapet overflow or at the base of a wall where a concealed leader (Pipe) discharges rainwater to ground. Nozzle design diverts water away from building, eliminating wall stains. Wall flange covers rough opening and serves as anchor.

Feel free to contact the roof drain specialists in UAE for any enquiries or doubts related to roof drains.