Products / TR 80

TR 80 is an exposed-fastener roofing profile made of grade 80 steel, with ribs about 17 mm high at 9 inch centres and an anti-siphon overlap joint, formed from 41 inch coil to a 36 inch covering width, with a 24 inch minimum length. It is offered in 29 gauge. Duchesne lists it for large roofs such as agricultural buildings and states it is not recommended on multi-slope roofs because its rigid ribs can rupture under falling ice. Duchesne's roof load-table notes state the steel conforms to ASTM A653/A653M or A792/A792M.