putting tin over shingles

Putting Tin Over Shingles A Comprehensive Guide

As homeowners look for ways to improve the durability and longevity of their roofs, one method that has gained popularity is putting tin over shingles. This technique not only provides an additional layer of protection but can also enhance the overall aesthetics of the home. In this article, we will explore the benefits, drawbacks, and the step-by-step process of placing tin over shingles.

Benefits of Putting Tin Over Shingles

1. Enhanced Durability One of the most significant advantages of installing tin over existing shingles is the added durability it provides. Tin roofing is known for its resistance to harsh weather conditions, including heavy rain, snow, and high winds. This can be particularly advantageous in areas prone to severe weather.

2. Energy Efficiency Metal roofs, including tin, reflect sunlight, which can help keep your home cooler in hot weather. This reflects sunlight effectively helps in reducing energy costs associated with air conditioning during the sweltering summer months.

3. Cost-Effectiveness Although the initial investment may be higher, many homeowners find that adding tin over shingles can save money in the long run. Since metal roofs can last 50 years or more with proper maintenance, they often eliminate the need for frequent roof replacements, which can be a significant financial burden.

4. Installation Process Installing tin over shingles can be simpler than tearing off and replacing your entire roofing system. This can save time and labor costs, making it a feasible option for many homeowners.

5. Improved Aesthetics Tin roofs come in various colors and styles, allowing homeowners to choose a look that complements their home. This can increase curb appeal and possibly the home’s resale value.

Drawbacks of Putting Tin Over Shingles

1. Weight Considerations While tin is relatively lightweight, it is essential to consider the weight of the additional layer on your existing roof. Most shingle roofs can support this weight, but consulting a structural engineer is recommended if you have concerns.

2. Potential for Moisture Trapping If not properly installed, placing tin over shingles can trap moisture between the two layers. This can lead to mold growth and damage to both the shingles and your home’s structure. Proper ventilation and installation techniques are crucial to prevent this issue.

3. Aesthetic Changes While many find the look of tin attractive, the transition from shingles to metal may not appeal to everyone. It is essential to evaluate whether the new look fits in with the neighborhood and your style preferences.

Step-by-Step Process of Installing Tin Over Shingles

1. Preparation Begin by cleaning the existing roof surface thoroughly to remove debris, leaves, and dirt. Ensure that any loose shingles are secured or replaced.

2. Install Furring Strips Place furring strips (1x3 inch wood strips) horizontally across the roof. This creates a space between the shingles and the tin, allowing for ventilation and preventing moisture buildup.

3. Lay the Tin Panels Begin laying the tin panels from the bottom of the roof, working your way up. Overlap each panel according to the manufacturer's instructions to ensure proper sealing against water intrusion.

4. Secure the Panels Use screws or nails specifically designed for metal roofing to secure the panels to the furring strips. Be sure to follow the recommended spacing for fasteners to maintain the integrity of the roof.

5. Install Flashing Flashing is vital for directing water away from critical areas such as joints and chimneys. Ensure that flashing is installed correctly to prevent leaks.

6. Final Inspection Once the installation is complete, conduct a thorough inspection of the roof. Look for any loose panels or areas where water might penetrate and make necessary adjustments.

Conclusion

Putting tin over shingles can be an excellent solution for homeowners looking to enhance their roof's durability, improve energy efficiency, and increase aesthetic appeal. While there are drawbacks to consider, the benefits often outweigh them when the process is done correctly. With proper installation and maintenance, a tin roof can provide a long-lasting, attractive covering for your home.