Because galvalume steel is more corrosion resistant than galvanized it is sometimes installed unpainted or with a low cost acrylic clear coat.
Nailing pattern for galvalume metal roof.
For duration series shingles owens corning recommends using either a 4 or 6 nail fastening pattern depending on the roof s slope and building code requirements.
End lap w valley a minimum of 12 inches.
If there are gutters installed on the eaves the eave flashing should be installed to overhang the lip of the gutter by about 1 2 inch.
Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging.
Place corner pieces where panels will meet bends at the edge of the roofing.
This way i don t get chewed out by the building inspector when they show up to inspect that particular.
Regardless of whether your roofing project is a new installation or a re roof and whether your building is residential commercial or agricultural our metal roofing panels and paint.
I like to give them a call about any new nailing schedules that i m uncertain about.
Nail available for steel panels when screws are not desired.
Temporarily secure valley in place with small nails or flat screws.
Metal roofing installation guide ggrraanndd rriibb 33 aanndd mmuullttii ppuurrppoossee ppaanneell.
The correct way to fasten steel panels with nails is to drive the nail through the top of the rib so the washer is compressed securely against the metal.
Most of the time you ll need to contact a local building inspector directly to get a definite answer if it s not already written out for you on the blueprints or manufacturers specifications.
In most cases 4 nails are adequate.
Position the nails appropriately according to the shingle installation instructions.
Nail placement must be in the ribs for roofing ap plications to minimize the potential for roof leaks.
Install fasteners on center on both sides of valley through panel and closure 3 inches back from edge of cut metal.
Use the lower edge of the roof as a guide and install nailers end to end across the roof with the lower edge two inches from the edge of the roof.
Metal roofing installation guide mighty rib pbr r panel regardless of whether your roofing project is a new installation or a re roof and whether your building is residential commercial or agricultural our metal roofing panels and paint systems have been created to exceed your requirements and expectations.
Drive a pair of 8d nails through the wood.
Align shingles properly to avoid nail exposure.