A Simple Guide to Commercial Roof Drainage

To maintain the structural quality of your commercial building, having a sound commercial roof drainage system is essential. A drainage system protects both your exterior and interior by channeling water from the roof.

Lack of a drainage system could have water collecting on your roof, which in turn could lead to water seeping into the building. This will cost you a lot in terms of repairing the roof and other items in the building.

Issues like leaking roof, peeling paint, mold, and inventory damages could stall operations. To avoid this, having a drainage system on your commercial property is very important.

Forms of Drainage System

There are two main forms of drainage systems that you should consider.

Gravity drainage: This system utilizes gravity as water flows from the roof to the ground.

Siphonic drainage: This system has baffles on the drainage points that block air from ingress. This creates a low atmospheric pressure which in turn sucks water down.

Since most commercial buildings have flat roofs, knowing which commercial flat roof drains to use will be very crucial.

Types of Drainage Systems

There are four types of commercial roof drains that are great for flat roofs.

1. Scuppers

These are openings or channels that are placed in the sidewalls of the roof. They allow water to flow through and connect to downspouts or gutters. Scuppers are generally cheap to install and easy to maintain, thus making them a prevalent choice.

However, scuppers tend to clog easily, but with the correct sizing, this problem can be avoided.

2. Internal Drains

This type of drainage point is installed on the surface of the roof where the water collects. They work best with an inclined roof to allow water to gather at the drainage point.

Internal drains work well with other drain systems. They are cheaper to install and easily maintained.

3. Gutters

Mostly found in residential houses, gutters are still used on the edges as commercial roof drains. Working in tandem with downspouts, gutters guide water down without touching on the surface of the building.

This system requires the roof to have a significant gradient so as water enters smoothly into the gutters. Also, the channels need to be kept clean to ensure free water movement.

4. Downspouts

Also known as roof drain leaders, downspouts channel water from the gutters or scuppers to the surface. In commercial buildings, downspouts should be larger compared to residential buildings. This is due to the large volume of water in a commercial building.

Drain leaders can be installed on the sides of already completed buildings without altering the structure. This makes them very economical.

With a roofing quote, you can gauge the best commercial flat roof drains that will be an excellent suit for your property.

Get the Best Commercial Roof Drainage System for Your Property

With the above-discussed tips, you’ll be in the best position to choose the best commercial roof drainage for your property. With this, your property will be well protected from damages that arise from the lack of quality commercial roof drainage.

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By Malik

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