Blog, Commercial Roofing . March 21, 2024


Metal Roof Installation


Need professional metal roof installation services? Turn to Preferred Roofing for installation services in Oklahoma and the surrounding areas. We have been in business for over 20 years and can help with any of your roof needs, whether residential or commercial.

One of the reasons metal panel roofs are popular is due to their durability. They can last 50 years, if not longer, and are resistant to fire and pests. They also reflect heat, which can help reduce your utility bills in the summer. Here is a more in-depth look at what you’ll get with metal roof installation services.

Are Metal Roofs Installed Over Existing Shingles?

A professional roofing company can install metal panel roofs over existing shingles, but only under specific conditions. The existing shingles must be in good condition. There should be little wear and tear and no damage or rot. The roof structure should also be able to support the additional weight of the metal, whether it’s corrugated metal roofing, standing seam metal roofing, or zinc roofing.

If you plan on adding a metal layer over existing shingles, schedule a professional inspection first. A roofing company like Preferred Roofing can determine if your existing roof is suitable and if there are potential risks.

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How are Metal Roofs Installed?

When we install metal roofing, we typically follow these steps.

Inspection and Preparation

We first inspect your roof to determine if we need to repair any damaged areas, and then we ensure that your roof is clean and flat. Because metal expands and contracts, how we design and attach the metal roofing panels is key.

Underlayment Installation

We lay a protective underlayment on the surface to protect your roof deck. This layer prevents water leaks.

Metal Panel Installation

Next, we install metal roofing panels on the surface of the underlayment and fasten the panels with roofing nails 12 inches apart. The corrugated metal panels are measured in square footage and usually come in panels measuring 50-100 square feet. To create a weather-tight barrier, we interlock the panels.

Trimming and Sealing

Trimming and sealing is the final step. After laying out the panels, we install a drip edge at the edges of the panels to help direct water away from your roof and toward your gutter. We place flashing around areas like your chimney and vents to prevent water intrusion and apply sealant to any fasteners and seams. We also place a ridge cap along the roof’s edge at this stage. Ridge caps prevent rain, snow, debris, and insects from entering your home. We use the top of the closure strips as well. Besides keeping out moisture, they also act as an insulator, reducing noise from rain.

Installing roofs is a detail-oriented job, and contacting Preferred Roofing is important if you need professional roofers. We can provide a detailed consultation, an outline of our process, and a quote for your needs.

Can Metal Roof Be Installed Over Existing Asphalt Shingles?

While it’s certainly possible to install metal roofing over existing asphalt shingles, it’s important that you consult professionals to determine the best approach. Installing corrugated metal panels over asphalt shingles is what roofers call “roofing over,” it can help save money as you don’t need to remove the existing shingles. But not every state allows it.

Before installing the panels, the existing shingles should be flat, smooth, and show no signs of damage. In other words, they can’t be cracked or bumpy. If the shingles are uneven, we may need to replace the uneven ones before adding new panels. Your roof structure should also be able to support the added weight of the metal.

Moreover, moisture may become trapped between the new corrugated metal panels and the old shingles. Therefore, a professional metal roof installation is necessary to prevent moisture buildup.

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Can Metal Roofing Be Installed Over Plywood?

Installing metal roofing over plywood is possible as long as the plywood is in good condition. If the plywood rots or suffers from moisture damage, you’ll need to replace it. If there are small damaged spots, have those areas repaired before installing the metal panels. 

However, the plywood is in good condition. In that case, our roofers can fasten the panels directly onto the deck with roofing nails.

Metal Roof Installation on New Construction

Installing metal roofing on a new construction offers the most benefits. Some benefits include:

Streamlined Installation Process

When you choose metal shingles, zinc roofing, or another type of metal for your roof on a new construction, you’ll get a streamlined installation process because you won’t have to remove any existing shingles. This saves both time and effort.

Cost Savings

Starting afresh with metal roofing saves money, as you won’t need to repair damaged areas or remove old roofing materials. Repairing and removing old roofing materials also means labor and disposal costs.

Long-Term Durability

Roofs made from metal can last 50 years, if not longer. By having roofers install this type of roof, you’ll be ensured of long-term durability. You may also have less repair needs.

Energy Efficiency

Many roofs made from metal come with a heat-reflective coating that can help deflect sunlight. This translates into cooler interiors and lower utility bills.

Metal Roof Installers Near Me

If you’re searching online for “roof installers near me,” be sure to check out what our team at Preferred Roofing offers. We are experts in installing roofs in Oklahoma and the surrounding areas. We have an A+ rating with the BBB and employ certified installers. With our commitment to using high-quality materials, we can ensure that you’ll get an energy-efficient roof that will withstand the elements and last for years. Contact us for a free, no-obligation estimate to learn more about our roof services.

Metal Roof Installation Mistakes

Although metal roofs offer a great alternative to asphalt shingle roofs, some important mistakes should be avoided.

Improper Ventilation

Many people may be surprised to learn that roofs made from metal need to breathe. Installing intake vents to allow air to enter the roofs from below is important. Proper airflow can help prevent moisture buildup on humid or wet days.

Incorrect Fasteners or Techniques

Another mistake to avoid is using incorrect fasteners or techniques. Incorrect fasteners can weaken your roof’s structure and make it vulnerable to the elements. At Preferred Roofing, we always use high-quality roofing nails to fasten the metal roofing panels to the layer below.

Neglecting Proper Flashing Installation

If your flashing isn’t installed properly around vents or your chimney, water can leak into your home through the exposed areas. This can eventually result in water damage or mold and mildew growth. 

To avoid these pitfalls and ensure a long-lasting metal roof installation, hire the experienced professionals at Preferred Roofing. We have over 20 years of experience and can install your roof correctly.

Steel Roof Installation Near Me

Need a steel roof? At Preferred Roofing, we can install a variety of roofs. These include steel roofs, corrugated metal roofing, zinc roofing, standing seam roofs, metal shingles, and more. Call us to find out what kinds of materials we have available.

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Metal Roof Installation on Sheds

Roofs made from metal aren’t just an excellent choice for your home or business. You can also use them on sheds. Sheds get exposed to extreme temperatures: hail, snow, rain, and UV rays. When you choose metal for your roof, however, you’ll get material that can withstand extreme weather, is long-lasting, and is durable. Another benefit is that metal is resistant to mold and rot, which can reduce the need for maintenance. 

We’ll be happy to inspect your shed at Preferred Roofing to help you decide on the type of roofing material you’d like to use. We offer free estimates.

Metal Roof Installation for Commercial & Residential

Metal roofs are more popular than ever because they offer exceptional benefits, such as long-term durability, 50-year lifespans, energy efficiency, resistance to fire, and resistance to mold.

When you need metal roof installation services for your home or commercial business, Preferred Roofing can provide high-quality metal roof installation services in Oklahoma and the surrounding areas. Contact us for a free consultation or quote for your metal roofing installation needs.

Preferred Roofing is the top roof company in OKC, offering expert commercial roofing & residential roofing repair in Oklahoma City. Specializing in metal roofing, shingle roofers, TPO roofing, spray foam roof, and silicone roofing. From metal shingles to standing seam roofs, explore our cost-effective solutions, including corrugated metal, steel sheets, asphalt shingles, and more. As the best roof contractors in OKC, we prioritize satisfaction, providing durable solutions for both commercial and residential roofing.