Should Roof Sheathing Overhang Fascia

Soffits a soffit encloses the underside of sloped or flat roof overhangs.

Should roof sheathing overhang fascia.

Soffits are commonly constructed from fiber cement panels metal panels stucco vinyl panels or wood sheathing. Roof sheathing or decking is one of those elements. Use 2x6 for fascia board. 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.

On roofs with no eaves overhang or soffit proper installation of drip edge proud of the fascia board at the wall top is very important to avoid water damage to the building walls below. Building a shed roof with an overhang is an important part of protecting your shed and thus should not be overlooked. Use your speed square on the fascia board and run the sheathing down to that. Never attach roof sheathing with staples.

Sheathing should be a minimum of 19 32 inch thick. Put that up first. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof.

Don t overhang the sheathing at all. Make sure it is square level etc. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. This opens the door to the possibility of water damage by letting gravity work against you.

8d ring shank nails should be used instead. A shed roof overhang is something most homeowners don t think about until their standing in the rain trying to get the door unlocked or fretting about all the water that s suddenly pooling around the shed s foundation. Overhangs can be open in which the trusses rafters and decking are exposed see figure 1 or enclosed by a soffit. The typical thickness range for sheathing is 3 8 to 3 4 inch.

Plywood is a bit more expensive but is usually. When sheathing a roof the first step is to snap a line so that the first row goes on straight. Under it from the sun. I ve trimmed my roof sheathing to run between 5 8 and 3 4 over the sub fascia.

But if you snap it at 40 inches then the sheathing will not project over the subfascia or true fascia.