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.
Roof membrane button fastener spacing.
Spacing recommendations for exposed fastener metal roof systems.
These values are in reference to mechanically attached insulation cover boards under adhered membranes or mechanically attached membrane assemblies.
Applying a secondary water barrier similar to the sealed roof deck that will now be required outside the hvhz.
Corrugated roof panels and other exposed fastener metal roofs are usually held together with screws every 18 inches or 2 feet.
Fasteners for the metal roofing industry evolved as well.
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.
Put fasteners at least every 8 inches.
Virtually all fasteners now meet fm corrosion resistance requirements by using polymeric or metallic coatings.
Some suppliers recommend staples about every 4 inches.
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.
Stress plates a variety of 2 and 3 inch round plates for securing insulation and for lap seam fastening in single ply applications.
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 1 option 1 install a self adhered peel and stick membrane 3 3 over the entire roof deck.
Overlay a second layer of felt 2 to 3 inches and fasten it.
Recommend 15 felt as bond break between.
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.
Designed for attaching single ply membrane systems to structural steel purlins up to 3 16 in standing seam metal roof retrofit applications.
1 4 seal the roof deck choose one of the following three options.
Leave the top portion of the paper loose.
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.
