Roof Membrane Button Fastener Spacing

The information listed in the chart below is for use with the referenced roof deck fastener type minimum pullout values and required penetration depths based on fasteners type.

Roof membrane button fastener spacing.

Stress plates a variety of 2 and 3 inch round plates for securing insulation and for lap seam fastening in single ply applications. Leave the top portion of the paper loose. This article describes the fastener screw or nail schedule for several types of exposed fastener metal roof systems citing manufacturers installation manuals and guidelines. 1 4 seal the roof deck choose one of the following three options.

These values are in reference to mechanically attached insulation cover boards under adhered membranes or mechanically attached membrane assemblies. Put fasteners at least every 8 inches. You will want to note your metal roof screw pattern so you know where to look for potential problems. Applying a secondary water barrier similar to the sealed roof deck that will now be required outside the hvhz.

Some suppliers recommend staples about every 4 inches. Photograph the fastener package and the spacing of the installed new fasteners in four locations including at least one gable. An excellent overview of metal roof fastener technology by bob fittro editor in chief of metal architecture magazine was published in the december 2006 issue. Overlay a second layer of felt 2 to 3 inches and fasten it.

Designed for attaching single ply membrane systems to structural steel purlins up to 3 16 in standing seam metal roof retrofit applications. 1 4 1 option 1 install a self adhered peel and stick membrane 3 3 over the entire roof deck. Recommend 15 felt as bond break between. Fasteners for the metal roofing industry evolved as well.

Virtually all fasteners now meet fm corrosion resistance requirements by using polymeric or metallic coatings. We include a discussion of the requirement for use of a greater number of metal roof fasteners in high wind zones and we give an example schedule of the. Adding supplement ring shank fasteners to attach the roof decking where the existing deck has insufficient fasteners such as staples or 6d nails or where the spacing of fasteners is lacking see table 706 7 1. Corrugated roof panels and other exposed fastener metal roofs are usually held together with screws every 18 inches or 2 feet.