The SSR Roof System is a “floating” concealed fastener roof system with exposed fasteners at the eave, endlaps and ridge locations. The SSR panel is “through fastened” to the structural framing at the low eave location only this allows for thermal expansion of the roof panel. To ensure that the SSR roof is “floating”, fasteners at the endlaps, ridge and gables must not penetrate into the structural framing or sheathing.
When the SSR Roof System is installed on wood framing it is recommended that:
The roof be installed on a minimum of 2”x4” wood strapping @ 2’-0” o.c. on 5/8” (min.) Fir plywood sheathing.
- The 2” thick strapping is required so that the endlap and ridge fasteners do not penetrate into the sheathing (stopping the thermal movement of the panel).
- The strapping allows for the recommended installation of batt insulation between the SSR roof panel and the sheathing (see below).
It is recommended that insulation be installed directly under the SSR roof panel.
- This help prevent the noise from the SSR roof panel vibrating against the structural framing/sheathing under certain wind conditions.
- This helps prevent condensation from forming on the underside of the SSR roof panel.
- The insulation may need to be “un-faced” or without vapour barrier depending on actual site detail.
- Ensure that Westman/Behlen is informed of insulation thickness at time of quoting.