Roof Sheathing Fascia Detail

Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof.

Roof sheathing fascia detail.

In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. 1 vent space insulation retainer r 30 batt insul or code req roofingsystem roof sheathing 12 5 j f f i it1 v 2x4 blking nailer dbl2x4. In this case and strike that line that completes the drawing of the whole eave. Its top edge is tucked up under the shingles and its outside face is where the gutter is mounted.

Click to enlarge any image our illustration above shows proper placement of the roof drip edge atop the roof sheathing before installation of roofing felt or ice and water shield and spaced a bit away from the fascia. Ben likes to keep the bottom edge of the roof sheathing above the outer edge of the fascia in case there are little discrepancies in the framing so he marks a line about a quarter inch in from the outer edge of the. Now that i ve modeled what i was going to build i decided i need a piece of molding to break up the plain look of just the fascia trim plank. Metal roofing specifications cad pdf drawings testing bim.

Where should roof drip edge flashing be placed. This would add another 3 4 to the thickness. Fascia and soffits finish the edges of roofs by covering the ends of the roof rafters or roof trusses where they overhang the sides of the house the fascia is the wide board that s installed on edge and runs horizontally along the edge of the roof. This is to just enough to cover the 3 4 x6 actual fascia.

Most of the roof runoff is going off the roof not down the fascia board. Roof sheathing or decking is one of those elements. I ve trimmed my roof sheathing to run between 5 8 and 3 4 over the sub fascia. Also for exposed fastener panels wall panels tiles soffit fascia copping.