5 Reasons To Not Install A Metal Roof Over Shingles

Your home’s roof is key to it’s safety and wellbeing Over time, however, even the most durable roofs can wear down, showing signs of aging and wear.
If you’re considering replacing your shingle roof, you might have heard about the option of installing a metal roof over shingles. But just because you can, doesn’t always mean you should.
We’re here to guide you through the decision making process, by teaching you all about:

• The signs indicating the need for a roof replacement
• The benefits of choosing a metal roof
• The feasibility of installing one over shingles
• The financial aspects involved

Signs That You Need to Replace Your Shingle Roof

Before exploring the option of a metal roof, it’s crucial to identify whether your current shingle roof requires replacement. Here are some signs to watch out for:

• Age: Asphalt shingle roofs typically last between 20 to 30 years. If your roof is nearing or has surpassed this lifespan, it’s time to consider a replacement.
• Curling or Buckling Shingles: Shingles that are curling, buckling, or losing granules indicate deterioration and may lead to leaks and water damage.
• Missing Shingles: Missing shingles leave your roof vulnerable to water infiltration and can compromise its integrity.
• Leaks or Water Damage: Interior leaks, water stains on ceilings or walls, and attic moisture are clear indicators of roof issues.
• Mold or Moss Growth: Excessive moisture or poor ventilation can lead to the growth of mold, moss, or algae on your roof, signaling potential problems.

Why You Should Consider a Metal Roof

Once you’ve recognized the signs necessitating a roof replacement, it’s time to explore your options. Metal roofing offers several compelling advantages over traditional shingles:

Durability:

Metal roofs have a significantly longer lifespan compared to shingles, often lasting 50 years or more with proper maintenance.

⛈️ Weather Resistance:

Metal roofs are highly resistant to various weather elements, including wind, rain, snow, and hail, reducing the risk of damage and leaks.

⚡️ Energy Efficiency:

Metal roofs reflect solar radiant heat, keeping your home cooler in the summer and reducing energy costs.

Low Maintenance:

Unlike shingles, which may require periodic repairs and replacements, metal roofs are relatively low maintenance, saving you time and money in the long run.

Aesthetic Appeal:

Modern metal roofing comes in a variety of styles, colors, and finishes, allowing you to achieve the desired look for your home.

Re-Roofing: Understanding the Process

Before diving into the specifics of metal roof installation, it’s essential to understand the concept of re-roofing. Re-roofing involves placing a new layer of roofing material over the existing one, rather than completely tearing off the old roof.
While this may seem like a cost-effective solution, it’s not always the best option, especially when transitioning to a different roofing material like metal.

Can You Install a Metal Roof Over Shingles? (5 Reasons We Don’t Recommend It)

While it’s technically possible to install a metal roof over existing shingles, it’s generally not recommended for several reasons:

1) Weight:

Metal roofing is heavier than shingles, and adding another layer of roofing material can exceed the load capacity of your roof structure, leading to structural issues.

2) Inspection:

Installing a metal roof over shingles makes it difficult to inspect the underlying roof for damage or defects, potentially exacerbating existing problems.

3) Ventilation:

Proper ventilation is essential for the longevity of your roof. Adding another layer of roofing material can impede ventilation and lead to moisture buildup and rot.

4) Voided Warranties:

Many metal roofing manufacturers void warranties if the roof is installed over shingles, as it may compromise the performance and longevity of the roof.

5) Aesthetics:

Installing metal over shingles can result in an uneven surface, affecting the appearance and potentially causing issues with water drainage.

The Cost of Total Roof Replacement

While the initial cost of a metal roof may be higher than shingles, it’s essential to consider the long-term value and savings. The total cost of a roof replacement depends on various factors, including:

• Roof Size: The larger the roof area, the higher the overall cost of materials and labor.
• Roof Complexity: Steep roofs, multiple levels, and intricate architectural features can increase installation costs.
• Material Choice: Different metal roofing materials, such as steel, aluminum, and copper, vary in cost, with some being more expensive than others.
• Labor Costs: Installation fees depend on the contractor’s rates, experience, and location.
• Additional Features: Factors like insulation, underlayment, flashing, and gutter replacement can add to the total cost.

Financing Options for Your Roof Replacement

Investing in a new roof is a significant financial decision, but several financing options can help make it more manageable:

Home Equity Loan or Line of Credit:

Using the equity in your home can provide low-interest financing for large home improvement projects like roof replacement.

Personal Loan:

Personal loans offer flexibility in terms of borrowing amount and repayment terms, although interest rates may be higher compared to home equity loans.

Roofing Financing Programs:

Some roofing companies offer financing plans with competitive rates and convenient repayment options.

Credit Cards:

While not ideal due to high-interest rates, using a credit card for smaller roof repairs or emergencies can provide short-term financing.

Government Loans or Grants:

Depending on your location and circumstances, you may qualify for government-backed loans or grants for energy-efficient home improvements, including roofing upgrades.

How a New Roof Adds Value to Your Home

Beyond the immediate benefits of improved aesthetics, energy efficiency, and durability, a new roof can significantly enhance the value of your home:

• Curb Appeal: A well-maintained roof enhances the overall appearance of your home, making it more attractive to potential buyers.
• Increased Property Value: Studies have shown that replacing an old roof can yield a high return on investment, with homeowners recouping a significant portion of the cost at resale.
• Extended Lifespan: A new roof provides peace of mind to prospective buyers, knowing they won’t have to worry about costly repairs or replacements in the near future.
• Energy Savings: Energy-efficient roofing materials can lower utility bills, making your home more appealing to environmentally conscious buyers.
• Negotiating Power: A new roof gives you leverage during negotiations, allowing you to command a higher selling price or attract multiple offers.

We Install Metal Roofing the Right Way

Upgrading to a metal roof over shingles offers numerous benefits, including enhanced durability, energy efficiency, and aesthetic appeal. While it’s possible to install a metal roof over existing shingles, it’s generally not recommended due to structural concerns, warranty issues, and aesthetic considerations.

When considering a roof replacement, it’s essential to assess your current roof’s condition, explore financing options, and weigh the long-term value of investing in a new roof for your home. With proper planning and professional installation, a metal roof can provide lasting protection and value for years to come. Contact Greentek Roofing to learn about our metal roofing panels and other roofing options!