Replacing your roof is a big investment, so would you like to upgrade to a more durable roofing material without having to rip off your old shingles? One question homeowners ask is: can you install a metal roof over shingles? The quick answer to that is yes, but it takes an expert hand, the right preparation and contractor to guarantee a safe and enduring job.
Old Time Roofing a well known name in the residential and commercial roofing business. We are experienced in metal roof installation over existing shingles and can help make your home unique. In this explainer, we’ll go over the benefits, technical details and perhaps whether or not the option is right for you home.
Key Takeaways
- Installing a metal roof over shingles is possible in many cases, provided the existing roof structure is sound.
- It saves time and money by eliminating the need for a full tear-off, reducing labor costs and debris.
- A proper inspection is crucial to ensure the shingles and decking can support the new roof.
- Using an underlayment or furring strips between layers prevents moisture buildup and improves ventilation.
- Hiring an experienced roofing contractor, like Old Time Roofing in St. Petersburg, ensures the installation meets code and lasts for decades.
What is a Metal Roof Over Shingles?
When we say installing a metal roof over shingles, we do not mean to take the old shingles off and then install your new metal roof. This procedure may be known as a “roof-over” or “re-roof”.
It’s not just a matter of convenience: This method can help cut down on waste, lower labor costs and shorten installation time. But it has to be done right, including according to local building codes and in a way that allows for proper ventilation while preserving the structure of your house.
Benefits of Putting Metal Roof over Shingles
Cost Efficiency
One of the obvious reasons for using this technique is obviously cost saving. By not tearing off the entire roof, homeowners can save thousands of dollars on labor and disposal costs. Old Time Roofing makes sure your new roof is installed perfectly with no hidden fees and cheapening out.
Less Mess and Faster Installation
It can be days of messy, dusty removal of old shingles. Not only is it a cleaner and quicker process to install metal roofing over shingles, according to the Metal Roofing Alliance (MRA), this technique also increases energy efficiency. That means less interference with your life and faster defense against the elements.
Added Insulation and Noise Reduction
The second layer of shingles can act as an extra layer of insulation, and help muffle the noise when rain or hail makes contact with the metal roof. Many consider metal roofs loud, but with a proper installation (shingles or sheathing) the sound issues are minimal.
Eco-Friendly Option
Re-roof over shingles also decreases the waste that goes to landfills. Besides, metal roofing is 100% recyclable and very often produced by recycled material; it is one of the greenest options.
Technical Considerations Before Proceeding
Although, the response to “can you put metal roof over shingles” is often in the affirmative, it just doesn’t come as a one-size-fits-all answer. And there are many important variables to factor in:
Building Codes and Permits
Different areas have different building codes and some do not allow for roof-over installations. Some codes restrict the number of roof layers to just one more. Old Time Roofing takes care of all the local red tape so you can be sure everything gets done properly and legally.
Roof Deck Inspection
Inspect the existing roof deck before installing a new metal roof, it is critical to inspect the current roof deck for damage. You should also check the plywood beneath it, if water-damaged or soft, you may have to repair or replace that too. Old Time Roofing inspects with infrared and moisture detection devices.
Weight Load
While not as heavy as tile or slate, metal roofing is heavier than some other materials and a house must meet certain structural standards to support the load. Old Time Roofing will assess the structural integrity of your home prior to starting a job.
Underlayment and Furring Strips
Trapped moisture and inconsistent surfaces are reduced by the use of a built-up underlayment (eg, synthetic underlayments and possibly vertical furring strips) in most situations. These act as a barrier between the shingles and the metal; they enhance airflow while protecting against corrosion.
Type of Metal Roofing
Most metal roofs can’t be installed over shingle. One of the most popular and effective re-roofing options is the standing seam metal roof that has concealed fasteners and vertical panels. Corrugated panels are also usable but would be installed differently.
Why Trust Old Time Roofing?
A metal roof covered over shingles isn’t a novice do it yourself job. It requires specialized knowledge, attention to detail and many years of experience. And that’s where Old Time Roofing comes in.
Old Time Roofing has been installing premium metal roofs In Florida for over 40 other years! Their services are state certified, licensed and insured. Their award-winning staff has gained a reputation for exceptional quality, detail and communication.
Old Time Roofing’s services include:
- Free on-site inspections
- Customized roofing assessments
- Compliance with local code requirements
- Use of premium, weather-tested materials
- Financing options for homeowners
Common Misconceptions
Myth #1: Metal Roofs Are Too Heavy
Metal roofing is actually quite light — among the very lightest options, lighter than many layers of shingles. The increase of weight usually inconspicuous to professionals.
Myth 2: Installing Metal Over Shingles is Too Bulky
Contemporary installation and trim construction result in a thin profile that eliminates that old-fashioned “box” look. If properly done, your new metal roof will look clean and spare.
Myth #3: You Are Simply Masking the Problem.
A reliable roofing contractor like Old Time Roofing never overlooks scheduling an inspection. Before installing the new system, any leaks or structural problems in the old roof are fixed.
Keep your roof in top shape by calling us at 727-390-0717
Is a Metal Roof Over Shingles the Best Choice for your Home?
If your current asphalt shingle roof is old but still in good condition, you might be able to layer a new layer of shingles on top of the existing one. But if you have bad shingles or a rotted deck, then you might need to remove everything.
Either way Old Time Roofing will give you straightforward evaluations and help consult wIt’s you on what would be the best course of action for your particular circumstances.
Final Thoughts
So, the next question is – can you put a metal roof over shingles? Can you get a tile roof this low? This is the best method: It will save you money, speed up installation, and is environmentally friendly.
With Old Time Roofing, we insist on applying a high-quality roofing system that can protect and enhance your home! Whether you are upgrading to prevent the next storm from blowing right through your property, or you simply want more durable windows for better peace of mind, our team is here to help you each step of the process.
Looking to learn more about metal roofing options for your home and budget?
Call Old Time Roofing today for a free estimate and see how simple it is to make the switch with an attractive, energy-saving metal roof—the last roof you’ll ever need on your home.
Old Time Roofing is a dedicated team of experts that can help you with the following:
Roofing materials that we work with:
Refrain from entrusting your roofing needs to just anyone. With Old Time Roofing, you can rest easy knowing that your roof is in capable hands. Contact us today!
Keep your roof in top shape by calling us at 727-390-0717
Frequently Asked Questions
1. Can you install a metal roof directly over shingles?
Yes, you can install a metal roof over shingles if the existing roof is in good condition and local building codes allow it. A professional inspection ensures the roof deck can support the extra weight.
2. Do you need an underlayment between metal roofing and shingles?
Absolutely. Installing a quality underlayment or furring strips provides a moisture barrier, prevents corrosion, and helps the roof “breathe,” extending its lifespan.
3. Will installing a metal roof over shingles void my warranty?
Not necessarily. Many manufacturers and installers honor warranties if the installation follows proper procedures and meets local codes. Always confirm with your contractor and the manufacturer first.
4. How long will a metal roof last compared to shingles?
A properly installed metal roof can last 40–70 years, while asphalt shingles typically last around 20–25 years. Metal roofs also offer better energy efficiency and storm resistance.
5. Should I hire a professional to install a metal roof over shingles?
Yes. Professional roofers like Old Time Roofing have the expertise to evaluate your current roof, ensure compliance with local codes, and deliver long-lasting results with proper installation techniques.