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Shingles should not extend more than 3/4” (19 mm) past the drip edge. If shingles overhang the edge of the roof by more than 3/4” (19 mm), then they are not supported and may crack and break off. In addition, the wind resistance at the roof edge may be compromised.
Should shingles overhang the drip edge?
Asphalt shingles should overhang the exterior edge of the drip edge by ¼ to ¾-inch. Check local building code for drip edge requirements prior to the start of your roofing project.
How much should a starter shingle overhang?
Whether installed at the eave or the rake, the starter shingles should overhang the edge of the roof by ¼ inch to ¾ inch. Typically, the finish shingles are then installed to align with the edge of the starters.
How much should a roof overhang?
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 support.
Should shingles overhang gutters?
Most shingle manufacturers recommend a 1/4 to 3/8 inch overhang over your eave, which is where your roof ends by your gutter. In many cases, and particularly as home ages and settles, the roof edge at the eave edge can wave in and out by more than this amount.
How much should a gutter overhang?
How Far Should Gutters Be From the Roof Edge? A safe distance between the gutter and the roof edge should be between 2 to 3 inches. If the gutter distance is more than 3 inches, the rain will run off the roof and won’t drain properly.
Does drip edge go on before fascia?
The correct placement of a roof drip edge is on top of the roof’s exterior cover directly between the sheathing and the fascia board, which forms a drainage gap between the drip edge and the fascia board. As a result, the drainage improves water flow and protects the roof from potential water damage.
Do starter shingles go up the rake?
Starter shingles should always overhang the eave and rake edges of the roof by about 1/4″-3/4″ to ensure adequate rain water drainage. It is also important that the seal strip is placed facing up and close to the edge of your roof; otherwise, your roofing system won’t seal properly.
How do you fix a incorrect shingle overhang?
To fix an overhang that’s too short, buy some aluminum drip edge (aka drip-cap flashing). It’s typically sold in 8-ft. lengths, and can be cut with tin snips or even poultry shears. Slide the wide, flat flange of the flashing under the first course of shingles and adjust it to extend over the gutter.
How much should a metal roof overhang?
A typical metal roof overhang may be 2 to 4 inches, or even less. Some slight overhang is recommended, in conjunction with a drip edge flashing, to prevent water from getting under the roofing and onto underlying wood.
How do you measure a roof overhang?
A roof overhang is measured from the building out to the end of the fascia board. Common measurements for a house overhang are 12 inches and 16 inches. On a shop or pole barn, the overhang is normally 18 inches.
How much should a corrugated roof overhang?
3: The panels at the eave side of the roof should overhang into the gutters 1 to 1-1/2 inches. If installing metal on a non gutter application you can overhang the panel up to 3 inches.
Are roof overhangs necessary?
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 much should gutter drop per foot?
Too much of a slope poses its own problems, however. A sharp gutter slope reduces the water capacity of the gutters, looks strange and can cause water to splash outside the gutters during heavy rain. A good rule of thumb for a gutter slope is that you want at least a quarter inch of slope for every 10 feet of gutters.
Does the gutter go behind the drip edge?
It is recommended that gutters are placed under or ‘behind’ the drip edge of your roof. If gutters are installed below the drip edge, water can drip behind the gutter and cause damage to the wood supporting the gutter system.
Should there be a gap between roof and fascia?
The best installation method is to leave a gap between the drip edge and the fascia board, about the width of a finger. The shingles should also overhang the drip edge 3⁄8 to 1/2 an inch.
Should sheathing overhang fascia?
Ideally the sheathing should be on top of the fascia without extending beyond it. Guesswork can create a situation in which it extends too far and it interferes with flashing installation, or you have to cut it. If the fascia is to be one layer of 1x, I overhang the sheathing 5/8.
How do you measure a roof for shingles?
How Many Roofing Shingles Do I Need? Measure the length and width of each plane on the roof (including dormers) then multiply length times width. Add the square footage of each of the planes together.
Can you glue drip edge?
Secure the drip edge with roofing cement. Apply a continuous bead of cement along the top of the drip edge, then press down on the shingle. If necessary, secure the ends of the drip edge with short roofing nails; just be sure they’re positioned high up under the shingles.
