Identification is often linked by the manufacturer’s project or job number, which is generally located on the original plans and frequently written on various elements within the building. The source and certification of the base metal, as well as the type and thickness of any coatings that have been applied to the metal, is commonly retained by the roofing manufacturer and is typically available upon request. More frequent attachment is common along the non-structural panel length. ![]() Non-structural metal roof panels are installed over a structural deck, which is the primary load-carrying component. Structural metal panel roofs-either SSR, TFR or IMP-generally include higher ribs in the panels/profiles, which enable it to carry significant design loads over open framing with spacing intervals of several feet. On the performance level, metal panel roof systems may be structural or non-structural. There are many different types of metal panel roof systems available to meet the performance and aesthetics needs of a building. 1.1.1 Low-Slope Metal Panel Roof System Description Some roof systems even have standing seam side laps. Some use simple side laps with exposed through-fasteners others use tongue-and-groove systems with hidden fasteners. ![]() Various manufacturers have different panel profiles and side lap connections. thick with excellent R-values to meet the needs of refrigerated warehousing, freezer buildings, and the ever-increasing energy code provisions for thermal insulation. IMPs are used in many applications that require high insulating properties and a durable interior liner. IMPs typically have an insulation core clad with either steel or aluminum. The fasteners should include an EPDM washer. Sliding clips allow the SSR to expand and contract.Ī TFR includes metal roof panels that are attached directly to the substructure with fasteners that penetrate the roof panels. A fixed clip is commonly used when shorter panel lengths are involved. There are two types of clips-fixed clips and sliding clips. It is important that clips be installed in the locations specified on the construction documents. The roof clips, or hold-down clips, are concealed in the seam of the panel. If the SSR is attached directly to open framing, it is typically designed to expand and contract and must be allowed to float. The prevalent rib geometries for low-slope metal panel roofs include the trapezoidal or vertical rib profile. Through-fasteners may be used at a limited number of locations where simple lap joints occur, such as at ends of the panels and at roof penetrations. ![]() The metal roof panel is secured to the roof substructure by means of concealed hold-down clips attached with screws to the substructure. Low-slope metal panel roofing may be a standing seam roof (SSR), through-fastened roof (TFR), or insulated metal panel (IMP) roof.Īn SSR has side joints between the roof panels that are arranged in a vertical position above the roof line. For more detailed information beyond what is provided herein, please refer to resources provided in Section 5 and the manufacturer’s installation specifications. Due to the composition, metal panel roofing is also resistant to fire, cracks, shrinkage and corrosion. Metal panel roofing provides protection from weathering-including heavy snow, wind and rain loads-along with resistance to the effects of hailstorms and wildfires. 1.3 Product Manufacturers and Industry Trade Associationsġ.5 Industry-Specific Standard and Code Requirementsġ.6 Industry-Specific Flashing and Metals Requirements
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