List of Common Metal Roof over Shingles Problems

Understanding the problems with installing a metal roof over shingles is crucial for homeowners considering this renovation option. Putting a metal roof on top of an existing asphalt shingle roof can save money in the short term, but it’s important to be aware of potential issues.

Metal Roof over Shingles Problems

Doing this action can be problematic sometimes. However, if you are ready for the risks, you should look for the anticipations immediately.

Benefits and Risks

While installing a metal roof over an existing roof can be cost-effective, weighing the benefits against potential risks is important. In the long run, issues like corrosion or improper installation can lead to costly repairs.

Therefore, finding a roofing contractor who can assess the feasibility and ensure that the metal panels are compatible with your current roof system is crucial.

Common Problems with Metal Roof over Shingles

So, what is the metal roof over shingles problems? There are a few of them that will be written below. It will allow you to understand the risk of covering the roof shingles with a metal material.

Read also: Metal Roofing Pros and Cons That You Should Know

Before doing so, make sure you have read the information below so you know exactly what to expect and what to do when the problem does happen. Here they are.

  1. Scratches

There are quite a lot of problems with a metal roof over shingles. However, you can tell that scratches are probably the most common ones. Yes, metal is quite prone to scratches. Debris, tree barks, falling stones, and many more can leave obvious and visible marks and scratches on the roof.

  1. Corrosion

There is no doubt that the most profound metal roof over shingles problem is corrosion. Metal, when a waterproof layer does not protect it or something like that, will most definitely rust and cause corrosion.

Moreover, it destroys the roof structure over time, making the roof prone to break apart and fall.

Metal Roof over Shingles problems corrotion

  1. Falling Clips

Clips or suspenders are needed to hold the metal roofing together. Over time, these clips can get loosened up. When it does happen, the metal roof will get lifted a bit and leave a gap between the shingles and the outer roof. It may cause leaks, and it is just not so pretty to look at.

  1. Loud Noise

One thing to understand about using a metal roof is that it does get loud when raining. When the rain hits the metal surface, the sound can be loud and bother most people under the roof. Many people despise being under a metal roof during heavy rain.

  1. Extra Heat

It is in its nature that metal absorbs heat. This is why you will feel that the temperature in a room or a house with a metal roof is higher. Use heat reduction layers or insulators under the metal roof if this matter bothers you.

Read also: Metal Roof Coating to Reduce Heat the Metal Roof

Considerations Before Installation

Before installing a metal roof over shingles, it’s essential to consider the structural integrity of the existing roof system. Adding metal panels without assessing the underlying structure can lead to structural damage in the long run. Consulting with a roofing repair expert and adhering to building codes ensures the roof is installed correctly.

Those are some of the most common problems that will most likely happen to a metal roof installed on top of existing shingles. Anticipate those problems by choosing the highest quality metal sheet or complete them with a heat insulator.

Remember that the roof is always one of the essential parts of the house exterior, regular maintenance is key to addressing metal roof over shingles problems.

Homeowners should conduct periodic inspections to identify and rectify any issues early on. Properly maintained, a metal roof installed over shingles can offer long-term benefits, combining the durability of metal with the existing protection of shingles.

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RoofLast is an experienced author and roofing expert. With years of practical experience in the field authored several informative articles on various aspects of roofing, including installation, maintenance, and repair