Discover the strength of the new 1.5N Horiz-N™ Steel Roof System, designed for projects that demand both performance and reliability. This new system features a 1.5-inch deep, 48-inch-wide bare deck, available with a standard nested sidelap (1.5N) or the folded XT nested sidelap (1.5XTN).
This profile is ideal for warehouse market segments. Built around the same 8' joist spacing already used for wood and OSB roofs, it does not require layout revisions. Skylights plan in from day one, no field cuts or supplemental framing needed. The profile also delivers superior diaphragm shear capacity, giving engineers more flexibility in how wind and seismic loads move through the building. And with nothing required below the deck, it's ready for conditioned space applications right out of the box.
