Attaching Hardi Siding To Steel Purlins

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.

Attaching hardi siding to steel purlins.

You can make your own fiber cement starter strip by ripping a piece of hardieplank lap siding into 1 1 4 inch strips. James hardie recommends that you consult your design professional if you have questions regarding the use of rainscreen on your single family project. We do recommend it however. Siding siding should be installed using the standard fastening and overlap patterns to ensure optimum.

The term applies to a nailing screwing method for joining hardieplank planks to hide nail or screw fasteners. Do all roofing projects require purlins. From the top edge and no closer than 3 8 in. Hardi board is some brittle stuff and will break if you look at it wrong if not applied over a solid backing material.

Hardie plank siding is almost always installed with air nailers which are the best tool for quick installation. James hardie recommends installing a rainscreen an air gap between the hardiepanel siding and the water resistive barrier as a best practice. Bolts should be completely threaded. James hardie prefers and recommends installation of hardieplank lap siding by the blind nailing technique such that fasteners are hidden by the course above.

The only downside of pneumatic tools is that sometimes the installer will get going a little bit too quickly and will lose track of where the nails are going. The manufacturer does not list an appropriate wood stud screw. Ring shank pole barn nails heavy wood screws lag screws or bolts are often used for attaching these purlins. Three screw threads must penetrate the steel stud.

I wouldn t apply it over metal siding with or without furring strips. Fasteners shall be installed between 1 in. Drill guide holes to slide the bolts through the wood into the steel frame. The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to.

If your going to use hardi board take off the metal siding and install osb or plywood first. Use bolts made specifically for screwing into steel or metal if attaching wood flush onto a steel frame. Use a number 8 1 1 4 inch long by 0 375 inch wide hd ribbed wafer head or equivalent screw on steel studs. Bolt the piece of wood to the steel frame by pre cutting holes into the frame so the bolts can fit through.

From the ends of the plank. And bottom purlins on an arched rafter building to prevent the curved panels from pulling the purlins loose from the rafters.