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.
What is the proper overhang for shingles?
Ideal Overhang Length Once the drip edge is installed, the shingles should extend ½ inch to ¾ inch past the drip edge. If the shingles are allowed to extend too far, then they can be caught by the wind and damaged. If they do not extend far enough, driving rain can get under them and damage the roof deck.
How much should drip edge overlap?
Nail high up on the drip edge so that the shingles will cover the nails. Ideally, you’d nail about every 12 inches, and in no circumstances should you have 16 inches or more between nails. When you place the next drip edge piece, it should overlap the first by an inch.
How much do you overlap shingles side by side?
There are two simple rules to follow: Each flashing should overlap the one below by at least 75 mm (3″), but not be visible below the shingle top lap. Imbed each step flashing in a 75 mm (3″) wide application of asphaltic plastic cement, and nail in place.
How far should shingles overhang drip edge Related Questions
Do I need drip edge on all sides of roof?
In short, yes, it’s necessary to have drip edge installed on your roof. Without the installation of drip edge flashing on your roof, water could get behind the gutter and start running down your home. This would allow for moisture to collect on the fascia board causing it to rot.
Is the drip edge on a roof supposed to be over the gutter?
It is recommended that gutters are placed under or ‘behind’ the drip edge of your roof. A drip edge refers to a component that hangs over the roof and has an outward projecting lower edge.
Should drip edge be flush to fascia?
A metal drip edge will help protect the sheathing under the roof, but if it’s installed too closely to the fascia board, it can still cause water to be drawn into the fascia. The best installation method is to leave a gap between the drip edge and the fascia board, about the width of a finger.
How much drip edge do I need?
Drip edge shall extend a minimum of a ¼ of an inch below roof decking and extend up a minimum of 2 inches. Underlayment must be installed over the drip edge along the eaves and under the underlayment on gables.
How far below drip edge should gutters be installed?
How Far Should Gutters Be From the Roof Edge? The gutter should be installed as close to the shingles as possible; no more than 2 or 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 over or under roofing paper?
It depends on where the drip edge is. At the side, or gabels, of a roof, the drip edge goes over the roofing felt. At the bottom of the roof, the drip edge goes under the roofing felt.
Does drip edge go over or under roll roofing?
It is also a good idea to install drip edge flashing before laying the rolled roof. Drip edge is a type of metal flashing that is installed at the edges of your roof to keep water from getting underneath your roofing materials.
What is the proper placement of drip edge?
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.
How much should 3 tab shingles overlap?
Shingle Peaks and Hips When you reach a peak or hip, shingle all the way up the first side (until the reveal portion of the shingles is within 4 inches of the peak) and cut the 3-tab shingles just below the ridge. Shingle the other side and allow these pieces to overlap the ridge by no more than 4 inches.
Do you peel the plastic strip off shingles?
Once shingles are installed, the cellophane strips no longer align with the adhesive, and the cellophane does not have to be removed. In fact, it should not be removed because it often carries printed information about the shingles.
Do you overlap first row of shingles?
Make sure that those rows come down and overlap the starter shingles you laid at the bottom. Lay your first row of shingles so it overhangs the drip edge by about one inch. Put between four and six nails into each shingle below the tar line, but above where the bottom of the next shingle will cross by about ½”.
Should shingles be glued to 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.
Can you install shingles without drip edge?
The drip edge helps to maintain the integrity of your roof by preventing water from entering under the roofing materials and compromising the structure. Without a drip edge, your shingles could slouch and could even need premature replacement due to the damage incurred.
Why does rain go behind my gutters?
When the roof shingles do not extend past the metal drip edge the water will suck back on the metal drip edge ( this is called capillary action) and run behind your gutters. NOTE: Capillary Action is a water activity in which water adheres to a surface and follow the surface around.
Does drip edge go over or under ice and water shield?
Ice and water protector needs to be installed directly onto the roof deck after you have placed the drip edge at the eave. (The drip edge will be installed over the ice and water protector and other underlayments at roof rake edges.)
Does drip edge go on rakes and eaves?
A drip edge should be installed on the eaves and rakes of the roof, flush with the decking and fascia. On eaves, the drip edge is installed directly to the deck with underlayment installed over it for proper water shedding. On rakes, the underlayment is installed over the drip edge.