When your home or business has a flat roof, heavy or consistent rainfall can result in water damage from flooding or pooling water. Proper maintenance can help you avoid the need for premature roof replacement. It can also curb damage within your living spaces, such as leaks, water stains, and mold growth. Here is a guide with a few flood prevention tips to consider when caring for a flat roof. 

How to Prevent Flooding on a Flat Roof

1. Check Internal Drains

Flat roofs have internal drains and scuppers, or openings on the side wall, that help direct water away from the roof and building. Make a habit of checking these features on a regular basis to ensure they’re free and clear of dirt and debris. If a clogged or blocked drain is left unaddressed, water will pool on the roof.

2. Maintain the Gutters

While a flat roof may appear fully horizontal, these structures have a slight pitch of approximately 10 degrees. This allows gutters along the perimeter to help control water flow. When used in tandem with internal drains and scuppers, properly cleaned and maintained gutters provide an additional line of defense to collect and redirect moisture before it can accumulate.

3. Add Slope

If you notice your roof is susceptible to flooding and pooling water after a storm, adding additional slope or pitch to the system is an easy solution. Instead of a comprehensive replacement, a roofing contractor can install tapered insulation on the roof’s surface. This product will add slope so water flows smoothly toward drains, scuppers, and gutters. The added material will also boost overall energy efficiency. 

4. Fix Depressions & Sagging Immediately

Over time, a flat roof can develop saggy areas and depressions from bearing the weight of snow or the impact of tree branches and debris. These divots allow water to pool and further corrode roofing materials. To prevent moisture-related problems and flooding, inspect your flat roof regularly and patch depressions in a timely manner. 

If the flat roof on your home or business is flooding, BDW Roofing can provide roof repairs and gutter solutions that eliminate the problem efficiently. Based in Mount Kisco, NY, this local company has served clients throughout Westchester and Putnam County for over three decades. They work with a range of roofing systems, including EPDM, asphalt shingle, slate, and tile roofs. Call (914) 218-8820 to schedule a free estimate with this fully licensed and insured contractor.