How far should Roof sheathing overhang rafter tails?

It is at 45-3/4 in. Measure up the rafter 45-3/4 inch from the cut end of the truss tail and snap a line along the trusses. This indicates the upper edge of the first row of roof sheathing—leaving enough overhang that the subfascia and fascia will tuck neatly underneath when the time comes.

Two feet is the general maximum length for a typical roof overhang. This will protect a roof from most types of damage. Roof overhangs can extend farther than 2 feet, but beyond this length, they begin to lose structural integrity and require external supports.

Also Know, how far can you cantilever a 2×6 roof? Deck Joist Cantilever Rules and Limits

Joist Spacing (o.c.) 24″
Douglas Fir-Larch, Hem-Fir, Spruce-Pine-Fir 2×6 1′-2″
2×8 2′-2″
2×10 2′-9″
2×12 3′-3″

Just so, how much overhang should a plywood roof have?

The overhang is multiple meaning that the sheeting you would overhang some 3/4-1″ followed by a drip edge then if using shingles another 1″. If using metal w/o drip another 3/4-1″ past the wood sheeting. You would want to keep your completed overhang close to 1-1/2″ if using gutter.

How big should overhang be?

A typical overhang for a comfortable seating area should be around 25-30cm (10-12”), this should leave enough knee room and adequate space between the countertop edge and the person seated. Therefore, as the depth of the overhang increases, so does the comfort and usability of the bar.

Is sub fascia necessary?

Floor Plans. Sub-fascias are not required by code. The fascia can be nailed directly to the truss tails, but while the sub-fascia is typically a t.

What is the underside of a roof overhang called?

Soffit: The underside of the eaves, or roof overhang, which can be enclosed or exposed. Soffit Vent: An intake vent in the soffit area of the house that provides attic venting at a lower portion of the roof deck and good circulation with other forms of venting such as ridge or roof vents; also called an intake vent.

Does a roof need an overhang?

Roof overhangs have several important functions: they can protect exterior doors, windows, and siding from rain; they can shade windows when solar heat gain is undesirable; and they can help keep basements and crawl spaces dry. The most common design error is to make roof overhangs too stingy.

How thick should roofing plywood be?

Most Common Thickness For rafters spaced 20 or more inches apart, 1/2- or 5/8-inch plywood is recommended. The most common rafter spacing is 24 inches, and 5/8-inch plywood is recommended for that. It will support roof loads for most situations and is the standard for most roof applications.

How far down should sheathing go?

For a one story house, the sheathing should extend from the bottom of the lowest framing member to the top of the highest framing member (as shown in blue).

Should roof sheathing have gaps?

Sometimes, plywood or OSB was installed right on top of the boards. The recommended maximum gap between roof sheathing boards for low-quality, 3-tab shingles is 1/4-inch. If asphalt shingles are installed over sheathing with gaps exceeding 1/4-inch, over time, these gaps may telegraph through and become visible.

What is the minimum thickness of roof sheathing?

Sheathing should be a minimum of 19/32-inch thick. Never attach roof sheathing with staples; 8d ring-shank nails should be used instead. The typical thickness range for sheathing is 3/8 to 3/4 inch. Sheathing is installed perpendicular to roof trusses.

Can you use OSB board on a roof?

Both OSB and plywood panels can cut and installed on a roof using conventional roofing equipment. They have similar structural characteristics, and can be used interchangeably. OSB is now the most-used sheathing and subflooring material for new roofs and roof replacements.