Hello there, I'm a construction and roofing specialist with years of experience in evaluating and implementing various roofing solutions. When it comes to the question of whether a tar and gravel roof is a good choice, there are several factors to consider.

Tar and Gravel Roofs: An Overview

A tar and gravel roof, also known as a built-up roof (BUR), is a type of roofing system that has been around for many years and is known for its durability and longevity. This type of roofing is particularly suitable for flat or low-sloped roofs. It's constructed using multiple layers of asphalt and reinforced with a top layer of gravel, which provides additional protection and longevity to the roof.

Durability and Longevity

One of the primary advantages of a tar and gravel roof is its durability. The asphalt layers provide a strong, waterproof barrier that can withstand harsh weather conditions. The gravel layer on top adds an extra layer of protection against UV rays, which can significantly extend the life of the roof. Typically, a well-maintained tar and gravel roof can last anywhere from 20 to 30 years, which is a considerable lifespan compared to many other roofing materials.

Cost-Effectiveness

Another benefit of tar and gravel roofing is its cost-effectiveness. While the initial installation cost can be higher than some other roofing materials, the long-term savings due to its durability and low maintenance requirements can make it a very economical choice. The cost of materials and labor for a tar and gravel roof is generally lower than that of metal or tile roofs.

Energy Efficiency

The gravel layer on a tar and gravel roof can also contribute to its energy efficiency. The light-colored gravel reflects sunlight, which can help to keep the building cooler in the summer months, thus reducing the need for air conditioning and lowering energy costs.

Maintenance

Maintenance for a tar and gravel roof is relatively low. Regular inspections and the occasional repair of damaged areas are usually sufficient to keep the roof in good condition. However, it's important to note that the gravel can become loose over time, which may require periodic reapplication.

Environmental Considerations

While tar and gravel roofs are not the most environmentally friendly option due to the use of asphalt, they do have a lower environmental impact compared to some other roofing materials when considering their long lifespan and low maintenance requirements.

Disadvantages

Despite its many benefits, a tar and gravel roof does have some disadvantages. One of the main concerns is its weight. The gravel adds significant weight to the roof, which can be a concern for older buildings not designed to support heavy loads. Additionally, the installation process can be more labor-intensive and time-consuming compared to some other roofing systems.

Conclusion

In conclusion, a tar and gravel roof can be a good option for homeowners or building owners with flat or low-sloped roofs, especially if they are looking for a durable, cost-effective, and long-lasting roofing solution. While there are some drawbacks to consider, such as the weight and initial installation costs, the benefits of durability, energy efficiency, and low maintenance often outweigh these concerns.

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If you have a home with a flat roof, a tar and gravel roof may be a good option for you. Tar and gravel roofs are usually made of 3 to 5 laminated layers of asphalt base sheets, hot tar, and roofing felt. ... Light colored gravel is used to cover the dark layers.read more >>