If you’ve ever seen a roof covered in gravel, you might have wondered about its purpose. While it may appear to be just an aesthetic choice, the reality is that this system offers multiple benefits, making it a smart and durable option for commercial and industrial buildings. In this article, we’ll explore in detail why some roofs have a layer of gravel and how this system protects your property.

1. Protection Against Water Leaks

One of the key elements of a gravel-covered roof is the waterproof membrane placed beneath the gravel layer. This membrane acts as a protective barrier that prevents leaks and damage caused by rainwater or snow.

When a flat roof lacks proper protection, water can accumulate and seep through cracks or poorly sealed joints, leading to moisture problems and structural damage. Gravel helps distribute water evenly, allowing for better drainage and reducing the risk of leaks.

2. Protection Against the Sun and Extreme Weather

UV rays can damage roofing membranes over time, causing cracks and material deterioration. This is where gravel plays a crucial role:

• It reduces direct sun exposure, extending the lifespan of the waterproof membrane.
• It prevents material expansion and contraction due to temperature changes, reducing the risk of cracks.

Additionally, the gravel layer acts as a natural thermal insulator, helping maintain stable indoor temperatures, which can contribute to energy efficiency.

3. Improved Drainage and Prevention of Water Accumulation

Flat roofs are prone to water accumulation if they don’t have an efficient drainage system. Gravel helps channel water toward drains, preventing puddles that could weaken the membrane or cause leaks.

Moreover, many gravel-covered roofs include vents and drainage systems designed to prevent water buildup, ensuring proper water flow off the roof.

4. Increased Durability and Lower Maintenance

Thanks to its ability to protect against water, the sun, and other weather conditions, gravel-covered roofs tend to be more durable than other roofing types. This means:

• Less frequent need for repairs.
• Greater resistance to wear from harsh weather conditions.
• Longer lifespan for the waterproof membrane.

While a gravel roof requires regular inspections to ensure the gravel is evenly distributed and that drains function properly, its maintenance is relatively low compared to other roofing systems.

Is a Gravel Roof the Right Choice for Your Property?

If you own a commercial, industrial, or residential building with a flat roof, a gravel system can be an excellent option to ensure greater protection and durability. At High Quality Roofing, we offer expert inspections and high-quality roofing solutions to help you choose the best option for your needs.

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