Installing Roll Roofing Over Existing Shingles for Efficient House Roof Upgrades

Rolling Roofing Over Existing Shingles A Practical Guide

When it comes to roofing, homeowners are often faced with the dilemma of whether to replace their old shingles entirely or opt for a more economical solution. One practical approach that has gained popularity is rolling roofing over existing shingles. This method not only saves time and money but can also be a viable option for those looking to extend the life of their roof. In this article, we will explore the process of rolling roofing over existing shingles, its benefits, potential drawbacks, and considerations to keep in mind.

Understanding Rolling Roofing

Rolling roofing, commonly made from modified bitumen or rubberized asphalt, is a lightweight and flexible material that can be installed in large rolls. It is typically used for low-slope roofs, providing a protective layer that is both durable and waterproof. The rolling roofing process involves laying down these rolls over the existing shingles, effectively creating a new roof surface without the need for a complete tear-off.

Benefits of Rolling Roofing Over Existing Shingles

1. Cost-Effective Solution One of the primary advantages of rolling roofing over existing shingles is cost savings. Removing old shingles can be labor-intensive and costly. By installing a new layer on top, homeowners can reduce labor costs and disposal fees associated with tear-off.

2. Time-Saving Installation The installation of rolling roofing is generally quicker than a full roof replacement. Without the need to strip the previous roofing material, contractors can complete the job in a fraction of the time, minimizing disruption to your daily life.

3. Minimal Environmental Impact By avoiding the disposal of old shingles, rolling roofing can be a more environmentally friendly choice. Shingle waste accounts for a significant portion of landfill materials. Adding new roofing over existing shingles mitigates this issue.

4. Enhanced Insulation Rolling roofing can improve the insulation of your home. The extra layer can add an additional barrier against the elements, potentially helping to regulate temperature year-round, which can lead to improved energy efficiency.

5. Aesthetic Appeal New rolling roofing is available in various colors and textures. It can enhance the overall appearance of your home, updating the look without the expense of a complete overhaul.

Potential Drawbacks

While the benefits are compelling, there are potential drawbacks to consider. First, not all roofs are suitable for rolling roofing over existing shingles. Roofs with more than two layers of shingles may not be compliant with building codes, and the additional weight may compromise the structural integrity of the roof.

Another concern is that an existing roof may have hidden damage, such as rot or leaks, which could worsen over time if not addressed before installation. Professional assessment is essential to identify any underlying issues that need repair.

Finally, rolling roofing may not provide the same durability and lifespan as a complete roof replacement, particularly in areas prone to severe weather. Homeowners should weigh the longevity and warranty of rolling roofing products against their specific climate needs.

Important Considerations

Before deciding to install rolling roofing over existing shingles, it’s vital to take several factors into account

- Building Codes Check local building codes and regulations regarding roofing materials and installation methods. Some jurisdictions have specific guidelines that must be followed.

- Roof Condition Have a qualified roofer inspect your existing roof to determine its condition. Only proceed if the roof is structurally sound and free from significant damage.

- Ventilation and Insulation Ensure proper ventilation is maintained to prevent moisture buildup and maintain energy efficiency. Proper insulation should also be considered to promote overall roof health.

- Choose Quality Materials Not all rolling roofing materials are created equal. Research and select high-quality products that come with warranties, providing peace of mind regarding their performance.

Conclusion

Rolling roofing over existing shingles can be a practical and cost-effective solution for many homeowners. However, it's crucial to approach this decision thoughtfully, considering the condition of your existing roof, local codes, and the long-term implications of your choice. By conducting thorough research and enlisting the help of a professional, you can enjoy the benefits of a new roof while preserving the integrity of your home. Whether you're looking to save money or simply update your roof, rolling roofing is certainly worth considering in your roofing strategy.