Switching from a traditional shingle roof to a metal roof overlay offers a smart option for homeowners seeking durability and long-lasting protection without the full expense of a complete roof replacement. Installing a metal roof over existing shingles can extend the life of your roof, improve energy efficiency, and enhance your property’s resistance to weather.
At Choice Roofing Services, LLC, based in Bedford, PA, we understand that upgrading your roof is a big decision. With more than 18 years of experience, we’ve helped many homeowners and business owners make this transition smoothly and confidently. In this guide, we’ll walk you through the benefits, the installation process, and the cost factors involved in a metal roof overlay so you know exactly what to expect when working with a metal roofing contractor like us.
Understanding Metal Roof Overs
What Is a Metal Roof Over?
A metal roof over is installing a new metal roof directly on top of an existing shingle roof without removing the old shingles. This approach saves time and reduces labor costs compared to a full tear-off.
Installing metal roofing over shingles can reinforce your roof’s protection and improve energy efficiency. It also minimizes disposal fees because the old shingles remain in place. However, not all roofs qualify for this method; the existing shingles must be in good condition and structurally sound.
For example, a homeowner with an asphalt shingle roof showing no signs of rot or severe damage can benefit from a metal roof overlay. Commercial buildings with large, flat shingle roofs often use this method to cut down on project time.
How Metal Roofing Differs from Shingles
Metal roofing is more durable and longer-lasting than traditional shingles. Metal panels resist cracking, curling, and warping, which are common issues with asphalt shingles. Metal roofs also reflect sunlight, which reduces cooling costs in warm climates. Shingles, usually made from asphalt, tend to absorb heat and break down faster under harsh weather.
For example, metal roofing can last 40 to 70 years, while shingles generally last 15 to 30 years. Metal roofs also handle heavy snow loads better, making them ideal for regions with winter weather.
Types of Metal Roofing Materials Suitable for Overlays
Several types of metal roofing materials are suitable for installation over shingles, including steel, aluminum, and standing seam panels. Each type offers unique benefits depending on the building and climate.
Steel panels are strong and affordable, often coated to resist rust and corrosion. Aluminum is lightweight and resistant to salt corrosion, making it a good choice for coastal areas. Standing seam metal roofing features raised seams that lock panels together, offering enhanced weather resistance.
For example, a commercial roofing contractor may recommend standing seam panels for warehouses requiring watertight seals. A residential property in a coastal town might benefit from aluminum for its corrosion resistance.
Advantages of Installing a Metal Roof Over Existing Shingles
Cost Benefits Compared to Full Roof Replacement
Installing a metal roof over existing shingles generally costs less than a full roof replacement. You avoid the expense of tearing off and disposing of old shingles, which can save 10% to 20% on labor and disposal fees.
This method reduces the project timeline and the risk of damage to the underlying roof structure. For example, homeowners save on removal costs, and commercial roofing contractors can complete large jobs faster, reducing downtime.
Cost savings also depend on the condition of the existing shingles and local disposal fees, but overall, a metal roof-over is a more budget-friendly option.
Durability and Longevity of Metal Roofs
Metal roofs last longer than asphalt shingles, often 40 to 70 years, compared to 15 to 30 years for shingles. Metal roofing resists cracking, shrinking, and erosion, which are common issues with shingles. This durability means fewer repairs and less frequent replacements. Longevity also connects to the roof’s ability to protect the home from moisture, pests, and fire, providing stronger overall performance.
Energy Efficiency and Environmental Impact
Metal roofing reflects up to 70% of the sun’s rays, reducing cooling costs by up to 25% in hot climates. Shingles tend to absorb heat, increasing energy bills during the summer months.
Metal roofs often contain recycled materials and can be fully recycled at the end of their life, reducing landfill waste. For example, aluminum metal roofing is popular for its recyclable nature and corrosion resistance.
This energy efficiency ties directly to cost savings and environmental benefits, making metal roofing a smart choice for eco-conscious homeowners.
Noise Reduction and Weather Resistance
Modern metal roofs with proper insulation reduce rain and hail noise to levels comparable to shingles. The perception that metal roofs are noisy often comes from older installations without adequate soundproofing.
Metal roofing is highly resistant to extreme weather, including heavy rain, hail, snow, and high winds. For example, standing seam metal roofs are tested to withstand winds over 120 mph, providing better protection than many shingles. This resistance helps reduce damage and maintenance costs, making metal roofing a durable choice in areas prone to severe weather.
At Choice Roofing Services, we bring over 18 years of experience as metal roofing contractors installing metal roof overlays that offer real value. Our team uses materials that meet high-performance standards and follow proven installation practices to help you get the most out of your investment. We’re trusted in Bedford, PA, and surrounding areas for our dependable work, clear pricing, and professional approach to every metal roofing project.
Important Factors to Consider Before Installing a Metal Roof Over
Assessing the Condition of Your Current Roof
The existing shingle roof must be in good condition before a metal roof is installed over it. If shingles are damaged, rotting, or have structural issues, a metal roof over won’t be effective and could cause problems like leaks.
A metal roofing contractor will inspect for soft spots, water damage, or missing shingles. If issues are found, repairs or a full replacement might be necessary before proceeding. Proper assessment avoids costly repairs later and ensures the new metal roof performs as expected.
Structural Requirements for Supporting Metal Panels
Your roof’s structure must support the additional weight of metal roofing panels. Although metal is lighter than many roofing materials, adding a new layer over shingles increases the load on the frame.
Typically, most modern homes and commercial buildings can handle the extra weight, but older structures may need reinforcement. For example, metal roof installers might recommend adding support beams or upgrading rafters if the current framing is weak. Ensuring structural soundness prevents sagging and extends the roof’s lifespan.
Building Code Regulations and Permit Considerations
Local building codes often regulate metal roof overlays and may require permits before installation. Codes vary by region and address aspects like wind resistance, fire safety, and insulation. For instance, some areas limit the number of roofing layers allowed or specify types of materials suitable for overlays. Metal roofing contractors familiar with local regulations can guide you through the permitting process. Obtaining permits and meeting code requirements prevents legal issues and makes sure the roof meets safety standards.
Local building codes in Pennsylvania require permits and compliance checks before installing a metal roof over shingles. These rules vary by municipality and often cover wind load, snow load, fire ratings, and ventilation. Some townships in Bedford and Blair Counties limit the number of existing shingle layers that can remain in place, usually to one or two.
In Johnstown, for example, older homes may require structural assessments due to age and roof framing types. McConnellsburg and the surrounding Fulton County areas sometimes mandate energy code compliance, especially for insulation and moisture control under metal panels. These differences make it important to work with a roofing contractor familiar with regional codes.
At Choice Roofing Services, we handle the entire permit process for our customers. We stay updated on local codes across Bedford and nearby towns. This helps your roof meet inspection requirements and avoids costly delays or code violations.
Ventilation Needs and Moisture Control
Proper ventilation is essential to prevent moisture buildup under a metal roof installed over shingles. Without adequate airflow, trapped moisture can cause mold, rot, and damage to the roof structure.
Metal roof installers recommend adding ventilation channels or ridge vents to improve air circulation. For example, installing a breathable underlayment can help moisture escape while protecting against leaks. Effective ventilation supports the durability of both the metal roof and the underlying shingles.
Step-by-Step Process for a Metal Roof Over Installation
Initial Inspection and Measurements
The process starts with a thorough inspection and precise measurements of your current roof. This step helps identify any issues, like damaged shingles or structural concerns, that must be addressed first.
At Choice Roofing Services, our metal roofing contractors examine the roof’s condition and take exact measurements to make sure the metal panels fit perfectly. Accurate measurements prevent material waste and make sure the installation is smooth.
Preparation of the Existing Shingle Roof
Preparing the existing shingle roof involves cleaning and securing loose shingles. Any debris, dirt, or loose shingles can interfere with the metal roofing installation. This preparation step also includes checking for nails or protrusions that could damage the metal panels. In some cases, small repairs are made to strengthen the surface. Proper preparation creates a stable base for the metal roof and enhances its longevity.
Installation of Protective Underlayment
A protective underlayment is installed over the shingles before attaching metal panels. This underlayment acts as a moisture barrier, preventing leaks and protecting the roof deck. The layer also adds an extra barrier against wind-driven rain. The underlayment links the existing shingles and metal roofing, enhancing overall durability.
Attachment of Metal Panels and Fastening Techniques
Metal panels are carefully placed over the underlayment and secured using specialized fasteners. The choice of fasteners and placement is to make sure the roof withstands wind and weather.
Typically, screws with rubber washers are used to create a tight, waterproof seal. Fasteners are installed at precise intervals to avoid panel warping or loosening. Proper fastening is vital for the roof’s structural integrity and resistance to weather damage.
Finishing Touches: Flashing, Ridge Caps, and Sealing
After panel installation, flashing and ridge caps are added to seal joints and roof edges. These components prevent water infiltration and improve the roof’s appearance. Sealing around vents, chimneys, and skylights is also done at this stage to avoid leaks. These finishing touches are key to a fully weatherproof metal roof system.
Final Quality Inspection
The final step is a quality inspection to make sure the metal roof is installed correctly. This includes checking fasteners, seals, panel alignment, and ventilation. At Choice Roofing Services, we perform this inspection personally to meet our high standards and customer expectations. This final quality check helps guarantee a long-lasting, reliable metal roofing system.
Cost Considerations for a Metal Roof Over Project
Key Elements Affecting Pricing
The total cost of a metal roof over project depends on several factors. These include the size and pitch of your roof, the type of metal chosen, and the complexity of the installation. Additional elements like roof accessibility, required repairs, and local building codes can also affect pricing.
How Professional Metal Roof Installers Ensure Value
Professional metal roof installers like Choice Roofing Services deliver value by combining experience with quality materials and workmanship. Our team has 18+ years of expertise as metal roof contractors. We make sure the installation is efficient and has lasting results.
We also help homeowners select the right metal roofing materials to fit their budget and needs. Choosing trusted contractors reduces the risks of future repairs and costly mistakes, making your investment worthwhile.
Why Choose Choice Roofing Services?
Experience and Expertise with Metal Roofing
Choice Roofing Services has over 18 years of experience in metal roofing installations. Our team has handled a wide range of projects, from residential overlays to commercial roofing jobs. We understand the unique challenges and requirements of metal roof installation. Our metal roof installers stay updated on best practices to deliver durable and reliable results.
Transparent and Fair Pricing Policy
We maintain a transparent pricing policy to keep costs clear and fair. From the initial quote to project completion, there are no hidden fees or surprises. We provide detailed estimates that cover materials, labor, and any additional services. This approach helps homeowners make informed decisions.
Commitment to Quality Workmanship
Quality workmanship is central to our service at Choice Roofing Services. We use premium metal roofing materials and follow precise installation standards. This helps your metal roof perform well in all weather conditions and last for decades. We regularly train our team to maintain high standards and safety.
Warranty and Customer Support
Choice Roofing Services backs all metal roof installations with solid warranties and responsive customer support. Our workmanship warranty protects against installation defects, while material warranties cover metal panel durability. We also offer ongoing support to address any questions or concerns after installation, ensuring peace of mind.
Frequently Asked Questions About Metal Roof Overs
Can a Metal Roof Be Installed Over Any Shingle Roof?
Not all shingle roofs are suitable for metal roof overlays. The existing roof must be in good condition and free of major damage or rot. Typically, one layer of shingles is acceptable for a metal roof over installation. If the shingles are damaged or there are multiple layers, repairs or removal might be necessary.
How Long Does a Metal Roof Over Installation Take?
Metal roof-over installations usually take between two to five days. The timeline depends on the roof size, complexity, and weather conditions. Our metal roofing contractors plan each step carefully to minimize disruptions. We provide clear scheduling and updates throughout the process.
What Maintenance Is Required for a Metal Roof Over?
Compared to shingles, metal roofs require minimal maintenance. Routine inspections for loose fasteners or damaged panels are recommended, especially after storms. Cleaning debris and checking sealants helps maintain performance. Professional roof inspections every few years can extend the lifespan of your metal roof.
Getting Started with Your Metal Roof Over Project
Choosing to install a metal roof over your existing shingle roof is a practical way to improve durability, energy efficiency, and curb appeal. With over 18 years of experience, Choice Roofing Services offers expert metal roof installation at fair prices. We guide homeowners through every step, ensuring a long-lasting, high-performance roof.
If you’re considering a metal roof over, trust our skilled metal roof installers to deliver quality workmanship and reliable service in Bedford and nearby areas. As a trusted commercial roofing contractor, we also support larger-scale projects for businesses needing strong, low-maintenance solutions.
Ready to upgrade your roof with a durable metal overlay? Contact Choice Roofing Services today for a free consultation. Call us at (814) 410-1409 or email daniel.choiceroofing@gmail.com to schedule an appointment with our expert metal roof installers. We’re here to provide reliable, high-quality roofing solutions tailored to your needs.
