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install roll roofing over shingles

Installing Roll Roofing Over Shingles A Comprehensive Guide

If you’re considering a roofing project that involves installing roll roofing over existing shingles, you’ve come to the right place. This method can be an effective solution for homeowners looking to extend the life of their roofing system without the expense and hassle of a full tear-off and replacement. In this article, we’ll discuss the steps involved, the materials required, and the benefits of this roofing installation method.

Understanding Roll Roofing

Roll roofing is a cost-effective and convenient roofing material that typically comes in large rolls. It is made from the same materials as traditional asphalt shingles but is designed for quicker installation and a more straightforward application. Roll roofing is commonly used for flat or low-pitch roofs, making it an attractive option for garages, sheds, and other outbuildings.

Benefits of Installing Over Shingles

One of the main advantages of installing roll roofing over existing shingles is the reduced labor and material costs. By avoiding a complete roof tear-off, you can save time and prevent the mess associated with traditional roofing projects. Additionally, laying roll roofing over shingles can provide additional protection against leaks and improve the overall insulation of your roof.

Preparing for Installation

Before you begin, ensure that your existing shingles are in good condition. Inspect the roof for any damaged or missing shingles and replace them as necessary. Clean the roof thoroughly to remove debris, dirt, and any loose material that could interfere with the adhesion of the roll roofing. Depending on the condition of the existing shingles, you may want to apply a primer to help the new roofing adhere better.

Materials Needed

1. Roll Roofing Material Available in various types, such as mineral-surfaced or smooth roll roofing. 2. Roofing Nails Use galvanized or aluminum nails to prevent rust. 3. Roofing Cement Essential for sealing seams and edges. 4. Primer (optional) To ensure better adhesion. 5. Utility Knife For cutting the roll roofing material to size. 6. Measuring Tape To measure the roof dimensions accurately. 7. Ladder and Safety Gear For accessing the roof safely.

install roll roofing over shingles

Installation Steps

1. Measure and Cut Begin by measuring the dimensions of your roof to determine how much roll roofing you will need. Cut the roll roofing into manageable lengths, usually 6 to 8 feet.

2. Start Laying the Material Begin at the lowest point of the roof and roll out the first piece of roofing. Ensure that it overlaps the shingles adequately. For best results, make sure that the roll roofing extends beyond the eaves of the roof.

3. Secure the Roofing Using roofing nails, secure the roll roofing in place. Nail along the edges and throughout the body of the material, ensuring that you avoid any gaps.

4. Seal the Seams Apply roofing cement to the overlaps and seams to create a watertight seal. This step is crucial for preventing leaks.

5. Continue Layering Repeat the process, overlapping each subsequent piece on the previous one by about 6 inches. This will help to ensure that water flows off the roof smoothly.

6. Finish the Edges Once the entire roof is covered, trim any excess material and seal the edges with roofing cement to secure them further.

Conclusion

Installing roll roofing over shingles is a practical and economical choice for many homeowners. By following the steps outlined above and ensuring proper preparation and installation, you can achieve a durable and effective roofing solution that prolongs the life of your home. Remember to prioritize safety throughout the process, and consult a professional if you have any doubts or questions. With the right approach, your new roll roofing can protect your home for many years to come.

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