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Standing Seam and Corrugated Metal Roof Screw Pattern and Placement

standing seam and corrugated metal roof screw pattern and placement

The roofing industry is in the midst of a major transformation.

The old standard 3-tab asphalt shingle has been replaced with higher quality metal roofs that are more durable, require little to no maintenance, and come in many different styles.

In this blog post we go over Standing Seam and Corrugated Metal Roof Screw Pattern and Placement!

There are many factors when installing a metal roof that must be taken into account, including but not limited to the length of standing seam panels on your home or commercial building.

This article will provide an overview of these options so you can make an informed decision about which type of metal roof is best suited for your project.

Standing Seam and Corrugated Metal Roof Screw Pattern

Standing seam metal roofs have been used predominantly on commercial buildings for many years, but recently they have gained popularity as a hip roof replacement system for residential homes.

Standing seam installations are covered by ASTM Specification A730/A730M for Installation of Metal Roof Deck, G90.7.31 Standard Practices for Installation of Standing Seam Metal Roof Systems, and G90.7.32 Standard Practices for Installation of Corrugated Metal Roof Panels.

Since 1938 the standing seam roof has been a staple on commercial buildings because of its durable nature, lasting 50 years or more with little or no maintenance needed to repair leaks.

Due to its simplicity and durability the standing seam roof has been used all over the world and is one of the most accepted metal roofs.

Corrugated metal sheets are commonly used on commercial buildings such as warehouses, big-box stores and car dealerships where aesthetics are not a high priority because corrugated panels add strength and give this type of structure its “big rig” appearance. 

In recent years, corrugated metal roofing has been gaining acceptance as a residential roofing material because it is more affordable, environmentally friendly and has a more appealing look than other types of exterior cladding materials such as asphalt shingles or wood shakes.

Screw placement in standing seam and corrugated metal roofing systems

Screw Pattern and Placement for Standing Seam and Corrugated Metal Roofs

Many metal roofing systems, both standing seam and corrugated, offer a hail-resistant shingle effect. This is achieved by interlocking the individual pieces of metal together.

When installing such systems, it is critical that the screws that hold the panels in place are placed at the proper angle and evenly spaced for this interlock to occur.

In general, most manufacturers of standing seam roofs require that the screws be installed from bottom to top at a 45-degree angle from the shingle edge.

This allows for proper drainage around the panels making it virtually impossible for water to penetrate behind individual pieces of metal.

In addition, screws should be spaced no further than 24″ apart.

There is no formal specification that sets the standard for corrugated screw pattern and placement, but it is recommended that they be installed in a manner similar to standing seam roofs.

Corrugated Sheet Roof Detail

The seam on a corrugated sheet roof is at the exact middle of each long side of the sheet.

The screw pattern for this type of roof is to place screws in connectors on either end of the sheets and then placed anywhere along the seams on the bottom of each sheet.

Standing Seam Roof Detail

The screws for a standing seam roof are placed directly into the very top of the seam, which is at the center of each 20- or 30-inch panel piece.

The screw pattern is basically one screw placement per panel section across the full width and length of the roof.

Benefits of Choosing a Standing Seam

Standing seam is an appealing option for building owners, architects and roofing contractors. It offers beauty, durability and long lasting performance.

The metal standing seam panels are enjoyed by many homeowners because they can be made to resemble other popular types of roofing materials such as shakes or tiles.

Another inherent benefit of this type of panel is that it is completely waterproof, so it is ideal for climates that experience heavy rain or snowfall.

Because these panels are designed to mount flush with the roof surface, water drains easily over the seams and doesn’t get trapped behind them.

But this isn’t all; standing seam panels can be installed in a variety of shapes and colors, making it possible to bring any roof design to life with this product.

Benefits of Choosing a Corrugated Metal Roof

Corrugated metal panels are an excellent choice for building owners who want to create an industrial or modern style structure that is both functional and aesthetically pleasing.

The ridged texture on these panels adds strength, while the wide array of colors and finishes they’re available in brighten up the appearance of any structure.

Whether you want your panels to match or contrast with the rest of your building, you can trust that this product will meet your needs and then some.

And if you are interested in maximizing energy efficiency, then you’ll be happy to know that corrugated metal roofing is a great option because it reflects heat during warm weather and traps it for insulation during the colder months.


Standing seam and corrugated metal roofs can be installed on both new construction projects as well as retrofit jobs.

A qualified roofing expert will make sure to properly install these types of systems, taking into account the proper spacing for screw placement in order to create an optimal installation that offers high quality performance for years to come.

Placement of screws in standing seam and corrugated metal roofing