This is all done under the panel, which minimizes the chances for leaks.Ĭorrugated roof systems are installed by fastening through the panel into the roof deck, meaning the panel is now pierced. No fasteners are visible, nothing pierces through the panels to attach it to the roof deck. The single main reason why you would choose a standing seam roof system is because it is a better system, and the main reason for this is because when properly installed, Why choose standing seam metal roofing over corrugated roofing panels? The most widely used system that can be seen still working on some applications for over a century is the standard mechanical lock standing seam roof panel. What is the best standing seam roofing system? The lock size varies, but it is commonly 0.75″.įlat locked panels are commonly used with zinc for wall applications, with more of a diamond shape. Normally, to keep costs down, flat locked panels are made with dimensions that get an even number of panels out of a sheet or coil.įor example, if using copper sheets 3’x10′, it is common to cut panels with 18″ x 24″, where 10 panels are extracted from every sheet. That means colored materials like Kynar aluminum and steel can only be used on walls. The exception lies with vertical applications (walls). Pre-Tinning of edges is also available.įlat lock panels always need to be soldered on flat roofs. Metal clips and nails for fastening the panels are available. These panels are ideal for flat roofs, domes, turrets and any wall panel system – interior or exterior. Flat Locked Roof and Wall Panelsįlat-Lock roofing panels come in a variety of shapes, sizes and metals. This eliminates the need for installing wood battens. A batten cap is then snapped into place over the cleat. U-Panels can be used in conjunction with heavy-duty batten cleats to form Batten Lock Panels.īatten Cleats are installed between each panel. The U-Panel is offered in 1” or 1.5” seam heights. This is an economical system, very quick to install, ideal for short runs where expansion and contraction are not a concern.Īs the snap lock system, this system relies on the rigidity of the material used, therefore softer materials such as copper are not recommended. This system snaps together just like a Snap Lock system and has a hidden built –in nail strip that eliminates the need for cleats. The Nail Strip Lock system is offered in 1” and 1.5” high seams. Snap lock panels cannot be curved.īecause this system relies on the rigidity of the material used, softer materials such as copper are not recommended. Snap Lock also incorporates fixed or expansion cleats that allow the panel to expand and contract. Snap Lock eliminates the need to mechanically lock the seams together, allowing for a much faster installation, much easier for those looking for a DIY project. This system snaps together as the panels are installed. The Snap Lock seam is offered in 1” and 1.5” high seams. These panels are secured to the roof deck via roof clips and can be curved. Commonly used materials are copper, lead coated copper, freedom gray, zinc, and Kynar coated steel and aluminum.Ĭopper based systems offer the advantage of being able to be soldered where needed, where aluminum systems are easier to work with and more malleable, while Kynar steel systems are a more tough panel, although not recommended for installations near the ocean. The double lock has long been considered the best locking system available and is it not uncommon to find century old systems still functioning properly. This profile panel is available in 1” or 1.5” high standing seam. The most widely used, traditional metal roof system, the mechanical lock, also commonly referred to as just standing seam roof, can be installed as a single lock or double lock system.
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