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Columbus Ohio Metal Roofs Over Shingles

Can you Install a Metal Roof Over an Asphalt Shingle Roof?

Columbus Ohio Metal Roofs Over ShinglesYes, you can install a metal roof over an asphalt shingle roof. This is known as a “roof-over” or “re-roofing” project, and it has become increasingly popular due to the numerous benefits of metal roofing. However, things are more complex than just placing the metal sheets over your existing shingles. There are a few essential factors to consider before deciding if this is the right choice for your home.

Today, we will explore the process of installing a metal roof over any asphalt shingle roof and take a closer look at the consequences you might face in the future.

How to Install a Metal Roof Over an Asphalt Shingle Roof:

Here are the 5 simple steps for installing a metal roof over any asphalt shingle roof:

Step 1: Inspection and Preparation

Before installing your metal roof over the asphalt shingles, it’s crucial to thoroughly inspect your current roofing condition. It includes checks for any loose or missing shingles, any signs of water damage, or any sagging areas. If your roof is in poor condition, we are sorry to say upfront that it might need a complete replacement instead of a roof-over.

Step 2: Laying down the Underlayment

After you have done the inspection, it’s time to lay down the underlayment. This protective barrier helps prevent condensation and potential water damage to your roof. For this step, it’s recommended to use a high-quality synthetic underlayment that is both lightweight and durable.

Step 3: Installing the Battens

Once your roof is ready and you think it is in a reasonable condition, the next step involves the installation of battens. Battens are thin strips of material that create a barrier between the old shingles and the new metal roof. They help level the roof surface and provide a secure place to attach the metal roofing.

Step 4: Installing the Metal Panels

Now comes the fun part – installing the metal panels! These should be attached to the battens using screws. Always start at the bottom and work your way up, ensuring each panel overlaps the previous one to create a watertight seal.

Step 5: Installing the Flashing

The flashing is your roof’s secret weapon against water damage. It’s usually placed around the chimney, vents, and the roof valleys. These are those places where water has a sneaky habit of collecting. Flashing is designed to be the ultimate raincoat for your home, directing water off the roof and ensuring it doesn’t leak in.

If you find the process too daunting, it’s always best to seek professional help. Click Here and get help from the best metal roofing contractors.

Now, let’s look at some of the benefits you can enjoy if you opt to install a metal roof over an asphalt shingle roof.

Benefits of Installing a Metal Roof Over an Asphalt Shingle Roof

Here are the three benefits of installing a metal roof over an asphalt shingle roof:

1. Save Money on the Removal of the Shingles

Installing a metal roof directly over existing asphalt shingles allows you to pocket some serious cash by skipping the messy, time-consuming process of shingle removal. Imagine avoiding the hefty disposal fees and the labor costs involved in the tedious strip down. It is like giving your home a sleek new hairstyle without the need for a costly and drastic cut! This also helps to reduce construction waste and promote sustainability.

2. Easier on the Environment

Choosing to install a metal roof over your existing asphalt shingles is also a conscientious decision towards preserving our environment. Traditional roof removal processes contribute to a significant amount of waste in landfills. By opting for an overlay installation, we essentially divert tons of shingle waste from landfills each year. This is actually a commendable step towards waste reduction.

Metal roofing itself is highly recyclable, leading to lowered raw material extraction and usage. Overall, metal roofs have a much lower environmental impact compared to traditional asphalt shingles.

3. Enhanced Energy Savings in Winter and Summer

A metal roof installed over existing asphalt shingles significantly enhances energy efficiency. This dual-layered system aids in maintaining a steady indoor temperature, irrespective of the season. In summer, metal roofs reflect solar radiation, reducing the need for excessive air conditioning.

In winter, they effectively insulate your home, minimizing heat loss and reducing reliance on heating systems. Ultimately, this results in considerable energy savings and a marked reduction in your utility bills.


Installing a metal roof over an asphalt shingle is an easy solution. However, as highlighted above, it has its fair share of potential consequences. So, before you decide to roof over, always consult a professional roofing contractor, and make sure to consider all the future consequences involved.

Your home is an investment worth protecting, and taking shortcuts in roof installation can lead to long-term problems that might be more difficult and expensive to fix. Remember: safety first! So, do your homework before you embark on this DIY project, or hire professionals who know what they are doing.

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