Can Metal Roofing Be Installed Over Shingles?

Metal roofing has gained popularity in recent years due to its durability, energy efficiency, and sleek design. However, many homeowners are surprised by the cost when they first get an estimate. To reduce expenses, some homeowners are exploring the possibility of installing metal roofing over existing shingles. But is this a good idea?

When considering upgrading to metal roofing, especially in the Haliburton area, this guide provides insight about installing a metal roof over the old shingle roof. We’ll explain the advantages, potential drawbacks, and why hiring a professional, such as Country Contracting and Construction, can make all the difference.

Can You Install a Metal Roof Over Shingles?

Yes, metal roofing can be installed over shingles, but it depends on the condition of the existing roof. The shingles if nearing the end of their lifespan should be in reasonably good condition—no significant lifting, cracks, blistering, or bumps. If the shingles are in fair condition, a metal roof can be successfully installed over them, saving about 25% in labour costs to remove the old roof, install new underlayment, or pay for disposal fees.

That said, most roofs are not ideal candidates for this installation method, and even if it’s possible, it may not always be the best option. Here’s why.

Key Considerations Before Installing a Metal Roof Over Shingles

While installing a metal roof over existing shingles may seem like an easy solution, there are several critical factors to should be considered before proceeding.

Compromised Protection from the Old Roofing Materials

Old shingles that have reached the end of their lifespan no longer provide adequate protection of the home. If water manages to seep under the metal panels, it can penetrate the worn shingles, leading to hidden leaks and serious water damage. Once moisture gets under the surface, detecting and repairing these issues becomes much harder, potentially leading to expensive repairs in the future.

Challenges in Locating and Repairing Future Leaks

One of the main issues with installing metal roofing over shingles is that tracking and fixing leaks becomes significantly more difficult. If water penetrates the metal panels, it will follow a winding path across the old shingles before making its way into the home. This can make pinpointing the source of a leak extremely challenging and time-consuming. Multiple repair attempts may be needed to resolve the issue, which can quickly drive up labor costs.

Missing the Opportunity to Replace Critical Roofing Components

Skipping the tear-off process when installing metal roofing means that essential roofing materials, like the underlayment, won’t be replaced. Underlayment serves as your roof's last defense against water infiltration. If you install metal roofing over an old, deteriorating underlayment, you’re relying on a material that may be well past its effectiveness. With a full roof replacement, you’d have the chance to install proper underlayment and materials specifically designed for metal roofing, ensuring long-term protection.

Structural Integrity May Be Compromised

One major risk of installing metal roofing over shingles is that the roof’s wooden decking (the structural support) will not be inspected. When old shingles are removed during a traditional roof replacement, the contractor has the opportunity to check for issues like wood rot or structural weakness. If you skip this step and cover the decking with metal roofing, undetected problems in the wooden structure may worsen over time. The additional weight on potentially compromised structure could lead to significant

damage and costly repairs later on.

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Preparing Your Roof for Metal Roofing Installation

If you’re determined to install metal roofing over shingles, taking the right preparatory steps is key to a successful installation.

1. Inspect the Existing Shingles

Before installing a new metal roof, it’s crucial to inspect the condition of your current shingles. Look for any cracks, missing pieces, or water damage. If your shingles are in poor condition, it’s best to consult a Haliburton construction company like Country Contracting and Construction to assess whether the roof can handle the additional weight of metal roofing.

2. Clean and Repair the Roof Surface

A clean surface is essential for a smooth installation. Be sure to remove any debris, that could cause issues with the new roofing. Make necessary repairs to any damaged areas before installing the metal roof.

3. Gather the Right Tools and Materials

Ensure all the necessary tools and materials are on hand before starting the installation. You’ll need metal panels, fasteners, underlayment, and safety equipment to complete the job.

Benefits of Installing Metal Roofing instead of Shingles

1. Enhanced Durability and Longevity

Metal roofing is known for its longevity, often lasting two to three times longer than traditional shingles. Withstanding harsh weather conditions and high winds, metal roofs provide extra protection against the elements.

2. Cost Savings

While the initial cost of metal roofing may be higher, there are saving on long-term maintenance and energy costs. Metal roofs are energy-efficient and can reduce heating and cooling bills, making them a cost-effective investment over time.

3. Improved Curb Appeal

Metal roofs come in various styles and colors, allowing a customized look. Whether choosing a modern, sleek design or a traditional appearance, metal roofing can enhance the home’s aesthetic appeal and increase its value.

Why Hire a Professional for Metal Roofing Installation?

Installing metal roofing is a complex process that requires expert knowledge to ensure the best results. Working with a Country Contracting and Contstruction ensures:

The integrity of your roof’s structure is maintained.
Proper installation techniques are used to avoid potential issues down the line.
All local building codes and regulations are followed.

By hiring Country Contracting and Construction, you can rest assured that your roof will be installed safely and correctly, extending the life of your investment.

Final Thoughts

While installing metal roofing over shingles is possible, it’s not always the best option. Carefully consider the condition of the existing roof and whether it can support the added weight. For homeowners in Haliburton looking for metal roofing near me, it’s always a good idea to consult with an experienced Haliburton construction company like Country Contracting and Construction to assess your options.

https://www.countrycontracting.ca/services/metal-roofing

Making an informed decision about roofing ensures the home is protected for years to come, offering both beauty and long-lasting durability.

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Why Choose Country Contracting and Construction for Your Septic System Installation

June 5, 2025

Expertise in Septic System Installation When it comes to something as important as your septic system installation, you want to be sure you're working with people who really know their stuff. That's where Country Contracting and Construction comes in. We're not just another haliburton construction company; we've built our reputation on being the best at septic solutions. Decades of Industry Experience We've been doing this for a long time. It's not just about having years under our belt; it's about what we've learned and how we've adapted over those years. We've seen it all, from the simplest setups to the most complex challenges. This experience means we can handle pretty much anything that comes our way. Specialized Septic System Knowledge We don't just dabble in septic systems; it's a core part of our business. We keep up with all the latest technologies and best practices. This includes: Understanding different types of septic systems and which ones work best for different situations. Staying current with environmental regulations and health codes. Knowing how to troubleshoot problems and keep your system running smoothly. We believe that continuous learning is key. Our team regularly attends training sessions and workshops to stay ahead of the curve. This commitment to knowledge ensures that we're always providing our clients with the best possible service. Certified and Licensed Professionals It's important to know that the people working on your property are qualified. All of our technicians are fully certified and licensed. This means they've met rigorous standards and have the skills to do the job right. You can have peace of mind knowing that your septic system installation is in capable hands. Comprehensive Site Assessment Before any septic system installation begins, Country Contracting and Construction understands the importance of a detailed site assessment. It's not just about digging a hole; it's about understanding the land and how a septic system will interact with it. We take this part very seriously, because a good assessment prevents problems down the road. We're not just another haliburton construction company ; we're your neighbors, and we want to do the job right. Thorough Soil Analysis Soil is a big deal when it comes to septic systems. We need to know what we're working with. Our team conducts thorough soil analysis to determine the soil's composition, absorption rate, and overall suitability for a septic system. This involves: Multiple soil samples taken from various locations on your property. Percolation tests to measure how quickly water drains through the soil. Detailed lab analysis to identify soil types and potential issues. Detailed Property Evaluation It's not just about the soil; it's about the whole property. We look at everything, including: The slope of the land and how it might affect drainage. The location of wells, streams, and other water sources. Existing structures and potential obstacles. A detailed property evaluation helps us understand the unique challenges and opportunities of your site. This allows us to design a septic system that works efficiently and effectively for years to come. Customized System Design Every property is different, and every septic system installation should be too. Based on our soil analysis and property evaluation, we design a customized septic system that meets your specific needs. This includes: Selecting the right type of septic system for your property. Determining the optimal size and location of the septic tank and drain field. Ensuring the system complies with all local regulations and health codes.