Fasten the purlin with 16d common nails into each vertical rafter.
How do you frame for a metal roof.
Metal should not be re bent once it has been formed nor should it be folded back on itself.
When a metal roofing sheet must be installed on a curved roof screws should be installed at every overlapping rib at the sheet ends to resist the natural tendency of the metal to spring back.
Take care the first piece is aligned precisely perpendicular square to the edge.
Take your first sheet of metal and place it on the roof so that it overhangs the edge at least 3 4 in 1 9 cm.
Insert two equally spaced nails into the rafter.
Then remove the rest of the roof including all the shingles.
When you are done you will see the bare bones of the roof frame and plywood sheathing i e.
Use your neoprene washer head screws to secure the metal to the sheathing.
Spacing of furring strips for metal roof when installing a metal roof over an existing roof insulate the spaces between the wood strips with rigid insulation to prevent condensation before.
Space the screws about 12 in 30 cm apart down the entire piece of metal.
Snap a chalk line horizontally across the roof two feet down from the top.
The framing style of the roof refers to the actual components of each roofing truss and the design of the structural foundation of that roof.
How to building frame a roof by steel frame amazing smart techniques practical implementation.
Partially these will depend on the style of roof you ve selected but you ll also have some wiggle room depending on the design elements of the house.
The old wood that was under the shingles.
The plywood covers the entire roof and is solidly attached to the rafters providing a sturdy base for both insulation and metal roofing panels.
Place corner pieces where panels will meet bends at the edge of the roofing.
Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging.
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.