Standing seam roofing systems are metal roof systems that feature long,narrow panels.THe long edge of the panel is oriented from gutter to ridge or valley.Upright,verticsl edges folded closed on site join the long panels. Interlocking seams snap together,simplifying installation

It is the only type of system for low-slope roof because they can be watertight with the use of seams that either incorporate sealant in the seam or use double-lock tpe seams.It is also applicable for steep-slope architectural roofs. They donot have exposed fastners except isolated locations,so they require less maintenance

The greatest advantage of standing seam roof is the ability to fabricate the panels on site using coils of sheet metal and a roll forming machine.This process enables the fabricator to create panels that are continous from ridge to gutter on each unique roof sections