Roof Membrane Button Fastener Spacing

Leave the top portion of the paper loose.

Roof membrane button fastener spacing.

Fasteners for the metal roofing industry evolved as well. These values are in reference to mechanically attached insulation cover boards under adhered membranes or mechanically attached membrane assemblies. Mechanically attach underlying sheet at the lap to the structural deck with fasteners and 2 3 8 60 mm diameter barbed membrane plates spaced at 6 153 mm on center or as specified down the entire lap with the disc centered 1 1 8 29 mm from the sheet edge. Applying a secondary water barrier similar to the sealed roof deck that will now be required outside the hvhz.

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. 1 4 1 option 1 install a self adhered peel and stick membrane 3 3 over the entire roof deck. Corrugated roof panels and other exposed fastener metal roofs are usually held together with screws every 18 inches or 2 feet. Virtually all fasteners now meet fm corrosion resistance requirements by using polymeric or metallic coatings.

1 4 seal the roof deck choose one of the following three options. 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. Some suppliers recommend staples about every 4 inches. This article describes the fastener screw or nail schedule for several types of exposed fastener metal roof systems citing manufacturers installation manuals and guidelines.

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. The all purpose fasteners heavy duty fasteners are specifically designed screws for mechanical attachment of the ultraply tpo membrane and roofing insulation to steel wood and concrete decks. Spacing recommendations for exposed fastener metal roof systems. You will want to note your metal roof screw pattern so you know where to look for potential problems.

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. Put fasteners at least every 8 inches. Stress plates a variety of 2 and 3 inch round plates for securing insulation and for lap seam fastening in single ply applications. Photograph the fastener package and the spacing of the installed new fasteners in four locations including at least one gable.