نوامبر . 08, 2024 06:57 Back to list

How to Install Roll Roofing Over Existing Shingles for Effective Protection

Installing Roll Roofing Over Shingles A Comprehensive Guide

When it comes to roofing options, homeowners often seek cost-effective yet durable solutions. One such option that offers both affordability and resilience is roll roofing. This type of roofing material is primarily composed of asphalt and is typically used for low-slope or flat roofs. However, many homeowners wonder if it is viable to install roll roofing over existing shingles. This article will guide you through the process, benefits, and crucial considerations for installing roll roofing over your shingled roof.

Understanding Roll Roofing

Roll roofing is a type of roofing material sold in large rolls and is made of asphalt-saturated felt or fiberglass. It is available in various styles and colors and is often used for low-pitch roofs, sheds, or garages. One of the biggest advantages of roll roofing is its straightforward installation process, which can often be accomplished without the need for professional help.

Benefits of Installing Roll Roofing Over Shingles

1. Cost-Effectiveness Installing roll roofing over existing shingles can save you money. Rather than incurring the expense of tearing off the old shingles, you can layer the new material directly on top.

2. Time-Saving This installation method is generally quicker than a complete roof replacement, as it eliminates the need for a tear-off process.

3. Added Protection Roll roofing can provide an additional layer of protection from the elements, especially if your existing shingles are wearing down.

4. Eco-Friendly By choosing to install roll roofing over shingles, you are minimizing waste, as you won’t be sending old shingles to a landfill.

5. Improved Appearance If your shingles are damaged or faded, roll roofing allows for a new, clean look without the hassle of a complete tear-off.

install roll roofing over shingles

Steps to Install Roll Roofing Over Shingles

1. Inspection Before proceeding, inspect your existing shingles for damage. Look for loose or missing shingles, signs of rot, or leaks. If the underlying structure is compromised, repairs must be made before proceeding.

2. Preparation Clean the roof surface thoroughly. Remove any debris, leaves, or loose shingles. Ensure the surface is dry, as moisture can compromise adhesion.

3. Installing Underlayment While roll roofing can be installed directly over shingles, using an underlayment is advisable for added protection. Lay down a layer of felt paper or synthetic underlayment, overlapping the edges to ensure water resistance.

4. Laying the Roll Roofing Begin from the bottom edge of the roof and roll out the roofing material upward. Ensure the edges overlap by at least 4 inches to prevent water from seeping in. For added security, apply roofing cement or adhesive to the seams.

5. Securing the Roll Roofing Using roofing nails, secure the roll roofing in place. Nail along the top edge and along seams, spacing the nails according to the manufacturer's instructions. Be careful not to overdrive the nails, which can damage the material.

6. Finishing Touches After the installation, trim excess material at the edges and apply additional roofing cement around the nail heads and seams to ensure a waterproof seal.

7. Inspection and Maintenance Regularly check your newly installed roll roofing for any signs of wear or damage, especially after severe weather. Early detection of issues can prolong the life of your roof.

Conclusion

Installing roll roofing over shingles can be an efficient, cost-effective way to rejuvenate your roof while adding an additional layer of protection. By following the suggested steps and precautions, you can successfully complete the installation and enjoy the benefits that come with a new roofing system. Always consider consulting with a roofing professional if you’re uncertain about any part of the process or if your existing roof requires significant repairs. With careful planning and execution, your roll roofing installation can be both simple and rewarding.

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