![]() ![]() They are better used for low-slope building applications that may need to be extra weathertight. Some of the benefits of using a single lock profile are that they take less labor to install and are easier to replace should damage occur than the double lock alternative.ĭouble lock seams are those that have been folded over twice (or 180 degrees). Two types of mechanical seam profiles used on standing seam metal roofs are single lock or double lock.Ī single lock seam refers to the fact that there’s only one fold of the seam so it’s a 90-degree seam. Often, mechanical seam profiles require expansion clips to account for the panel’s thermal movement. The concealed clips are then a part of the mechanical lock system. Using an electric seaming tool can allow for a tighter and more consistent seam than just hand-forming them. Mechanically-seamed metal roofs have vertical legs that line up with each other and are seamed together with a hand or electric seamer. What to consider to help you figure out which profile to use on your project.Advantages and disadvantages of using mechanical lock and snap-lock profiles.The characteristics of mechanical lock profiles and snap-lock profiles.Understanding the characteristics, advantages, and disadvantages of these types of panel profiles can help you decide what profile is the best option to use on your next metal roofing project. We understand the importance of researching what makes each of these profiles unique, including the pros and cons of each kind of profile so that you can select the best profiles for your machine and projects. snap-lock metal roof profile?Īt New Tech Machinery (NTM), we manufacture portable roof panel machines designed to make standing seam panel profiles including both of these popular metal roof panel profile styles. However, how much do you know the differences between them? What are the advantages and disadvantages of using mechanical lock vs. Mechanical seam and snap-lock metal roof profiles are the two most common styles used in residential and commercial standing seam roof systems. ![]()
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