The roofing industry has moved to metal roofs, which are famous for their functionality, durability, and beauty. Metal roofs provide a modern and smooth outlook to the roof, and the following advantages make them popular among many people. Of all the installation methods, the idea of a metal roof-over, where the homeowner puts a metal roof over the existing shingle, has received a lot of interest. This method will likely provide time, labor, and cost efficiency.

This blog intends to analyze the factors to consider when putting a metal roof over shingles.

Advantages of Metal Roof-Over

Installing a metal roof over existing shingles provides several advantages that can make this option appealing for homeowners. Here are some key metal roof benefits to consider:

1. Cost Savings

One of the primary advantages of opting for a metal roof-over is the cost savings. When positioning a metal roof over existing shingles, homeowners can avoid the labor and disposal costs of tearing off the old roof. This can result in significant savings, making the metal roof-over an economically attractive option.

2. Reduced Installation Time

Since tearing off the existing shingles is bypassed, the installation time for a metal roof-over is significantly reduced. This means that homeowners can enjoy their new roof much sooner and with less disruption to their daily lives.

3. Environmental Benefits

A metal roof-over can be an environmentally friendly choice. Reusing the existing shingles as a base layer generates less waste, reducing the amount of roofing material in landfills. Additionally, multiple metal roofs are made from recycled substances and are recyclable at the end of their metal roof lifespan.

4. Improved Insulation

Installing a metal roof over shingles can improve the insulation of the home. The additional layer of shingles provides extra insulation, helping regulate the home’s temperature. This can decrease energy bills and increase comfort for the occupants.

5. Durability and Longevity

Metal roofs in Fox Island, University Place, Gig Harbor, Port Orchard, and Tacoma are known for durability and longevity. When installed over shingles, a metal roof for a home can offer even greater protection, as the underlying shingle layer can act as an additional barrier against weather elements. Depending on the material, metal roofs can last 40-70 years, significantly longer than traditional shingle roofs.

Disadvantages and Considerations of Metal Roof-Over

While there are many advantages to installing a metal roof on top of the existing shingles, there are also several important considerations and potential drawbacks. It’s crucial to be aware of these factors before making a decision:

1. Weight Concerns

One of the main considerations when opting for a metal roof-over is the added weight. While metal roofs are relatively lightweight, combining metal and existing shingles can be substantial. It is crucial to ensure that the home’s structure can support the additional weight to avoid any potential issues.

2. Building Code Compliance

Before proceeding with a metal roof over, checking local building codes and regulations is essential. Some areas may have restrictions or specific requirements for roof-over installations. Compliance with such codes is crucial to ensure the security and legality of your roofing project.

3. Potential for Trapped Moisture

Another potential drawback of a metal roof-over is the risk of trapped moisture. Covering any leaks or damaged areas in the shingle roof with a metal roof could trap moisture, leading to mold and rot. A thorough inspection of the existing roof is necessary to identify and address any issues before proceeding with the installation.

4. Roof Ventilation

Proper roof ventilation is critical for any roofing system. While installing a metal roof over shingles, it is crucial to ensure that the roof’s ventilation system is adequate. Poor ventilation can lead to moisture buildup, reducing the lifespan of the roof and potentially causing damage to the home’s structure.

5. Aesthetics and Compatibility

While metal roofs are visually appealing, it is essential to consider how the new metal roof will look when installed over the existing shingles. The combination of materials should be aesthetically pleasing and compatible with the home’s overall design. Additionally, the metal roof should be installed in a way that does not interfere with architectural features or cause any visual discrepancies.

Key Factors to Decide: Metal Roof-Over vs. Tear-Off

Choosing between a metal roof-over and a complete roof tear-off requires careful evaluation of several key factors. These considerations will help you determine the best option for your home and ensure a successful roofing project:

1. Structural Integrity

Assessing your home’s structural integrity is crucial before deciding on a metal roof. An experienced roofing contractor should inspect the current roof and the overall structure to ensure it can support the additional metal roof weight. Custom Design Roofing LLC offers comprehensive roof inspection services in Tacoma, Fox Island, Gig Harbor, University Place, and Port Orchard to help homeowners make informed decisions.

2. Condition of Existing Shingle Roof

The condition of the existing shingle roof is a significant factor in deciding whether to go for a metal roof. A metal roof-over can be viable if the shingles are in good condition without significant damage or leaks. However, if the shingle roof has substantial damage, a roof tear-off might be necessary to ensure a solid foundation for the newly installed metal roof.

3. Long-Term Benefits vs. Initial Cost

While a metal roof-over can be more cost-effective initially, weighing the long-term benefits against the upfront savings is essential. A metal roof tear-off followed by a full metal roof installation may have a higher initial cost but could offer better long-term performance and durability. Homeowners should consider their budget, future metal roof maintenance needs, and the expected lifespan of the roofing system.

4. Roof Ventilation and Moisture Control

Ensuring proper ventilation and moisture control is crucial for the longevity of a metal roof. A roof-over installation should not compromise the ventilation system. Consulting with roofing professionals, such as Custom Design Roofing LLC, can help homeowners evaluate their current ventilation system and make necessary adjustments to accommodate the new metal roof.

5. Local Climate and Environmental Conditions

The local climate and environmental conditions in areas like Tacoma, Fox Island, Gig Harbor, University Place, and Port Orchard play a significant role in roofing decisions. Metal roofs perform exceptionally well in various climates, but factors such as heavy snowfall, high winds, and humidity must be considered. Custom Design Roofing LLC can provide expert advice on the best roofing solutions tailored to your area’s specific environmental conditions.

Final Thoughts: Custom Design Roofing LLC is Here to Help

Whether to install a metal roof over existing shingles requires careful consideration of various factors, including metal roof cost, structural integrity, ventilation, and local building codes. Metal roofs in Fox Island, University Place, Gig Harbor, Port Orchard, and Tacoma offer numerous benefits, including durability, longevity, and boosted insulation, making them an excellent choice for homeowners.

Custom Design Roofing LLC is dedicated to providing top-notch roofing services, ensuring that each installation meets the highest quality and safety standards. Our staff of professionals can help you assess your current roof, evaluate the feasibility of a metal roof, and provide expert guidance throughout the installation process. Contact Custom Design Roofing LLC today to schedule a meeting and explore the best roofing solutions for your home.