Advantages and Disadvantages of a Flat Concrete Roof

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Flat concrete roofs are not used on residential buildings as often as other types of roof systems, especially in climates where snow and heavy rains are common. If you are looking at a concrete roof for your home, consider the pros and cons below to help determine whether this type of material is right for you.

Pros

Less Wind Damage

Flat concrete roofs stand up well when exposed to heavy winds. Tile and shingle roofing can be easily damaged by high winds that catch the edges of shingles and tiles, but a flat concrete roof does not present this problem.

Easy Cleaning

When cleaning a roof of stains, molds, and algae, pressure washing is often the fastest and most effective method. Pressure washing on a flat concrete roof is less likely to damage this type of roof and is much easier than with a traditional angled roof.

Cons

More Water Pooling

Melting snow and water buildup during a rainstorm can result in pooling of water on any flat roof, including a concrete roof. Trapped water can attract bugs, bacteria, algae, and mold.

2. Collected Debris and Dirt

A roof that is flat, such as a flat concrete roof, is more likely to collect debris that will typically slide off a sloped roof. The homeowner with a flat concrete roof will be required to clean off this kind of debris from his roof more often.