Roof Sheathing Overhang

To stabilize the rafters support the roofing material and hold the entire roof together roof sheathing is installed.

Roof sheathing overhang.

Position the first piece of plywood or oriented strand board sheathing on the bottom edge of the rafter tails at one end of the roof. Sheath one slope of the roof at a time ripping the top course to the needed width at the ridge. Measure from the edge of the plywood outside of the wall over to whatever the overhang will be and square a line up to indicate the end of the truss tail. Roof sheathing or decking is one of those elements.

A tapered piece of sheathing can be cut to fill in at the eave if necessary. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. Box beam gable framing new gable overhang is framed in the form of a box beam hanging off of a new layer of roof plywood roof sheathing cantilevered over the top of the 3 layers of rigid insulation. When one slope is completely sheathed pop a chalk line down any slope edge as in a hip roof that needs to be cut at an angle.

Add an inch and a half for subfascia strike a line. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. Roof sheathing basics the skeleton of a roof is formed with rafters or trusses generally spaced 16 inches or 24 inches apart from the center of one rafter to the center of the next. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.

A typical metal roof overhang may be 2 to 4 inches or even less. Points to the installation of ice and water shield along the lower roof eaves protecting against ice dam leaks that are common on un vented roofs in cold weather or snow climates. Align the long edge of the sheathing with the ends of the. Add the thickness of the true fascia 15 16 in in this case.