Seam type that consists of an upturned rib, that may also be structural, with a watertight seam. It is made by turning up the edges of two adjacent metal panels and then folding them over in one of a variety of ways.
A type of metal roof system where the longitudinal seams on adjacent panels are turned up, overlapped and folded in various ways in order to prevent moisture entry and interlock the panels.
A type of metal roofing system
in metal roofing, a type of seam between adjacent sheets of material made by turning up the edges of two adjacent metal panels and then folding or interlocking them in a variety of ways.
Side joints of roof panels that are arranged in a vertical position above the roof line.
A roof system secured to the roof substructure by means of concealed hold-down clips where side laps between roof panels are arranged in a vertical position above the roofline.
A type of joint often used on metal roofs.
a metal roof system that consists of an overlapping or interlocking seam that occurs at an upturned rib.
