Standing Seam Roof Spacing

Colonial seam continuous standing seam metal roof panel with an integral seam.

Standing seam roof spacing.

Most standing seam systems can have anywhere from a 1 to a 3 seam. Part of the beauty and appeal of standing seam metal roofs is that the fasteners holding the metal panels in place are concealed. What is in a seam has a lot to do with the panel performance. Standing seam features approximately one inch high ribs and a net coverage of 16 inches.

Spacing in the range of 3 to 6 on center commensurate with the design wind loads as shown in figure 8 in order to avoid flashing blow off as shown in figure 9. Areas that have been torn or cut should be replaced or repaired prior to installation of the climate guard panel. Handlers should maintain uniform movements while transporting panels to prevent bending or twisting that will cause permanent damage. Elements of standing seam roofs.

Brian gough senior engineer asc profiles west sacramento calif says this varies depending on climate panel coating etc but believes a good rule of thumb is around 1 8 inch of thermal expansion for every 10 feet of panel length. Roof panels can come either pre formed or site formed. Handling individual panels should be carried on edge by hand and supported evenly with a maximum spacing of 10 to 12 feet figure 3. Standing seam roofing is composed of preformed.

That gives the roof its clean continuous appearance that is often desirable but it also avoids the issue of potential roof leaks around exposed through fasteners. The nail strip and screws that attach each panel are in turn covered by each subsequent panel as each overlapping panel locks into place over the previous one. Overlap the end of minimum of six inches when starting a new roll of underlayment. At side wall and end wall conditions continue the underlayment a minimum of six inches up the wall and fasten.

These seam fasteners might be anywhere from 0 5 inches to 1 5 inches high. For snap lock systems 1 seams are the most architecturally specified panel especially for commercial applications. Because these fasteners are concealed you only see a smooth continuous ridge extending from top to bottom.