Metal Roof Seam Types

A standing seam roof is among the most durable and maintenance free type of any metal roof and can last over 30 years.

Metal roof seam types.

The synthetic type is a relatively newer technology and is made by spinning together polyethylene or polypropylene with a polymer. It s a better and more advanced metal roof underlayment. For this reason galvalume steel is used most commonly in rather simple metal roof styles such as standing seam because there isn t quite as much bending in the metal. Mechanically seamed metal roofs are the only metal option for roofs of less than 2 12 pitch.

Depending on your location and environment the type of material will be a crucial first step in deciding which direction to go. Types of metal roofing materials. When selecting a roofing material there are many factors to take into consideration beyond installation cost. While they are used on steeper roofs they can be overkill for many applications.

While a standing seam metal roof system can be one of the most durable and weather tight roof systems available in the industry its benefits can be negated if you fail to understand the details in application parameters of the specific system. There are two types of underlayment for a metal roof felt paper and synthetic each with its pros and cons. Often called commercial roofing or agricultural panel roofing or even barn. Standing seam roofing provides additional energy reduction benefits and can be installed easily in many instances over the existing roofing material.

Here s a side by side comparison of metal roofs and other common roofing materials. While the initial investment of a metal roof is higher the value it offers over a lifetime is substantial. Metal roofing it s a general term that covers a broad scope of roofing options products and choices. One downside to this style of metal roof is that with the panels being crimped together repairs or alterations to the roof can be very difficult.

When it comes to specifying standing seam roofs one type doesn t fit all. Because galvalume steel is more corrosion resistant than galvanized it is sometimes installed unpainted or with a low cost acrylic clear coat. When someone references metal roofing he or she could be talking about shingles or tiles made of metal an exposed fastener roofing system that is common for agriculture buildings or maybe even a standing seam metal roofing system. Those types of metal roofs typically have panels that run vertically up the roof.

Seam heights vary but are typically 1 to 2 inches tall and allow the panels to snap together without any exposed fasteners. A standing seam roof system also classified as concealed fastener panels utilizes a series of adjoining panels that are connected by raised seams or vertical legs.