Purlin Spacing For 29 Gauge Metal Roofing

R panel install manual metal roofing vinyl siding answer to the growing demand for metal roofing and siding needs.

Purlin spacing for 29 gauge metal roofing.

R panels provide for attachment to metal purlins a minimum of 12 x 1 hex head tek for 2 foot spacing between rows of screws multiply the total linear feet of metal times 1 9 retrieve content. Purlin spacing is dependent on profile of the metal and gauge plus snow and wind load plus what the rafters are designed to carry. Fyi we run purlins on 3 5 feet on center depending on size of purlin. Pullout values decrease if the fasteners protrude completely through the purlins.

Screw line spacing for metal roofing over metal purlins. Without a set of blueprints with a pe s seal you have no option but to follow the inspectors gig. Purlins are non pressure treated 1 x 4 x 12 lumber that is installed on to the roof in a specific layout pattern and screw pattern. Once the purlin spacing is determined then the metal roofing panels are typically attached to every line of purlins.

The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to. Do all roofing projects require purlins. Metal roofing gauge sizes. We do recommend it however.

22 24 26 29 when it comes to metal roofing gauges thicker typically means that the cost will be higher. Some people may believe that thicker is always better but whether it needs that added strength actually depends on the type of building construction as well as its location. When using purlins fabral recommends a maximum spacing of 24 on center note that 5v requires solid decking.