Use 5 purlin spacing maximum install panels note.
Pro rib steel roofing purlin spacing.
For panel lap details see figure 5 on page 4.
Install emseal closure 3 inches back from metal.
The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to.
Galvanized steel which is created by using a soft layer of zinc to protect the inner layers is the most common type of steel roofing.
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Purlin spacing must be uniform and carefully measured.
Premium pro rib steel panel substrate shall be.
We do recommend it however.
Without a set of blueprints with a pe s seal you have no option but to follow the inspectors gig.
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Install panels direct ly to wooden framing.
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.
At bottom of opening slit panels or.
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Fastener spacing may not exceed 1 1 2 38mm.
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2 1 3 4 5 figure 5 p install metal directly to wood metal frame use maximum 2 purlin spacing install metal do not use this option for heated spaces install metal on solid deck.
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Figure 7 screws should be placed on both sides of the ribs at both eave and ridge.
Walking or standing on a metal roof which does not have a plywood or other deck beneath it is not recommended.
Nominal thickness of 0180 g 100 galvanized coating plus zinc phosphate per astm 653.
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Keep metal roofing back 3 inches.
Noise is usually not a factor if you are installing a steel roof over asphalt.
Install panels on solid decking install plywood deck.
Crown of the rib to secure the side lap.
For 2 x 4 purlins use 9 x 1 woodfast screws fastener spacing panel screws per lineal foot of roofing 12 4 5 18 3 0 24 2 5.
Do all roofing projects require purlins.
Roof sheathing consists of premium pro rib steel panels attached to the top edge of roof purlins in accordance with manufacturer s specifications or as shown on design drawings.
Grand rib 3 style metal roofing can be separated from the moisture barrier by minimum nominal 1 x3 yellow pine battens spaced on maximum.
Maximum purlin spacing for roof 5 on center option 1.
5 rib metal roofing system ordering installation guide.
This option not recom mended for roofing a heated space with no insulation or vapor barrier.
Rib of roof panel with screws on every rib along both sides of rib.
403 279 2766 skylight chimney cut opening in roof panel.
