Standing Seam vs. Exposed Fastener Metal Roof Options

Style Exteriors
October 25, 2024

When it comes to metal roof options, standing seam vs. exposed fastener are two popular choices. Both have distinct features, advantages, and drawbacks, depending on your budget, style preferences, and long-term needs.

These metal roof options are very different and it’s critical that you know the differences so you can make the best choice.

Standing Seam vs. Exposed Fastener: What You Need to Know

They are made from the same materials and perform the same function but have very different pros and cons.

Standing Seam Metal Roofing

Standing seam metal roofing uses a concealed fastener metal panel system. It is made up of vertical legs and a broad, flat area between the two legs. There are raised seams that rise above the level of the panel’s flat area. The panels are attached to the roof deck using a clip or directly fastened to the deck under the vertical leg.

Standing seam metal roofing is known for its longevity and durability. It also gives buildings a sleek, modern look.

Understanding what standing seam metal roofing is, is one thing. Here are the critical pros and cons, though.

Pros:

There are no exposed fasteners. That means the fasteners are protected from UV damage, moisture, wind, and the elements. There are also no holes in the panels that could be weak points down the road.
They often come with specific weathertight warranties. These warranties promise that the system won’t leak or fail during specific weather conditions. An important note is that these warranties are usually only for commercial projects.
The metal panels allow for thermal movement. When there isn’t enough movement space, you may end up with issues like oil canning, fastener withdrawal, and increased noise. Standing seam metal roofs are long-lasting. However, they do need professional maintenance.

Cons:

Standing seam metal roofs are often more expensive. Especially when compared with exposed fastener systems.
Not all contractors have the necessary skill. This means it can be tricky to book the right contractor for the job. The installation can be tedious, complicated, and labor-intensive, adding to the time and cost.
Maintenance can be a mission. To repair or replace panels is much harder than with other systems.

Exposed Fastener System

In an exposed fastener system, the metal roof panels are fastened to the structure through the metal and directly into the roof deck or framing. As the name suggests, the head of the fastener is visible. This system is popular on residential, structural, industrial, and agricultural buildings.

Here are the pros and cons of exposed fastener metal roofs.

Pros:

An exposed fastener system is economical. You have the option of wider and thinner gauge panels. These systems can also have cheaper paint options and the panels don’t require extra clips during installation.
Exposed fastener systems don’t need seaming. There is a lap seam where the overlapping panels are fastened simultaneously. This is also less labor intensive.
It offers good performance for an economical system. The caveat here is that the system must be professionally installed.
You have more contractor options with an exposed fastener system because this system is easier to install.

Cons:

Your roof is more exposed to the elements because of the many roof penetrations.
You may encounter fastener problems like fastener withdrawal, UV degradation, or incorrect installation.
Exposed fastener systems may need more regular maintenance. This takes time and can cost you money.
These systems don’t have the warranty that a standing seam system has.

Standing Seam vs. Exposed Fastener Metal Roofs: Quick Comparison

Choose a standing seam metal roof if you’re looking for a long-lasting, sleek, low-maintenance roof that offers excellent weather protection and energy efficiency. Though more expensive, it’s a great long-term investment for residential homes or commercial buildings.

Exposed Fastener Metal Roof

Opt for an exposed fastener metal roof if you need a cost-effective, easy-to-install solution that still provides the benefits of metal roofing. While it requires more maintenance, it’s ideal for agricultural, industrial, or budget-conscious residential projects.