Commercial and Industrial Roof Drainage Options

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Commercial and Industrial Roof Drainage Options

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While flat roofs are remarkable for their benefits, drainage doesn’t come easily to the low slope. If your drainage options arent skillfully planned and installed, you might experience pooling and leaks. To prevent problems before they happen, learn more about three of the most successful drainage options to protect your flat roofing system. 


Just like residential drainage systems, gutters are typically made from heavy-duty aluminum. This cost-efficient option is a half-boat vessel design that catches and drains the water to downspouts that carry it away from your building. Typically installed at an angled slant, the gutters divert water from the roof.

The downside of gutters is that debris and small animals can sometimes block water flow, causing the same pooling you had hoped to prevent. For gutters to be successful, regularly scheduled cleaning and maintenance are required. 


Scuppers can function independently or with gutters and downspouts. Rather than relying on just the gutter opening that can quickly become clogged, scuppers provide larger spaces for water to drain with downspouts underneath. 

While the scupper is more cost-effective and easier to maintain since it clogs less, you still have to consider clogs that can form in downspouts. Downspouts need regular cleaning and, in some cases, snaking to keep water flowing freely away from your building. 


Flat roofs can accumulate pools of water and debris, and interior drainage systems are an ideal response. Drains can be placed under the roof in problem areas, and water will flow out of the gutter and downspouts. 

While internal systems eliminate some of the trickier drainage problems on a flat roof, clogs and blockages can still arise. Installing cages or filters can help. Scheduling regular roof maintenance will also ensure that your drains are working as they should, keeping your roof dry and your building free of water. 

Contact Rain Man Roofing today to determine which drainage system is suitable for your building in Arizona or Northern California.

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