How Do You Frame For A Metal Roof

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.

How do you frame for a metal roof.

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. Place corner pieces where panels will meet bends at the edge of the roofing. 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. 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.

Then remove the rest of the roof including all the shingles. Insert two equally spaced nails into the rafter. Fasten the purlin with 16d common nails into each vertical rafter. Metal should not be re bent once it has been formed nor should it be folded back on itself.

The plywood covers the entire roof and is solidly attached to the rafters providing a sturdy base for both insulation and metal roofing panels. Remove any nails sticking out and reposition any metal gutters so that water flows properly off the roof. Snap a chalk line horizontally across the roof two feet down from the top. 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. The old wood that was under the shingles. Lay the first purlin at the ridge of the roof down to the chalk line beginning at either corner. 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.

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. Take care the first piece is aligned precisely perpendicular square to the edge. How to building frame a roof by steel frame amazing smart techniques practical implementation.