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To attach a 3-tab shingle, align it with the layout line and drive nails 1/2 inch above the cutout slots (including the half slots at each side). Drive a nail at one end first, then drive the others. If you are using a power nailer, drive nails by squeezing the trigger and bouncing the nailer’s tip onto the shingle.
What is the pattern for shingles?
Shingles are installed in a diagonal up the roof in the pyramid pattern. Progressively shorter shingles make up a starter kit and are aligned to several vertical control lines or a rake edge to establish the offset between horizontal shingle courses.
How many nails do you put in a 3 tab shingle?
NAILING: Use galvanized (zinc coated) roofing nails, 11 or 12 gauge, with at least 3/8″ diameter heads, long enough to penetrate through plywood or 3/4″ into boards. Use 4 nails per shingle placed 6-1/8″ above the butt edge, 1″ and 13″ in from each end and 1/2″ above each cutout.
What’s the difference between architectural shingles and 3 tab shingles?
3-tab shingles are flat, and they have a single tab shape and size. Architectural shingles are also referred to as dimensional shingles. This is because they provide a more dimensional look to the roof. Each shingle appears more dimensional because it is; multiple layers of materials adhere to the base.
Do you overlap shingles side to side?
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.
How far should shingles overhang the rake?
The edge of the shingles should hang over a roof between an inch and an inch and a half — or between a half inch and three-quarters of an inch if drip edge flashing is installed. Too much overhang and the shingles could blow off in high winds; too little can allow water to seep into rake or fascia boards.
Should shingles overlap horizontally?
Horizontally within each course, the shingles do not overlap the adjacent shingle to the left and to the right, rather those joints are butted together such that water is allowed to enter and run within that particular joint because that water is being shed by the preceding shingle course.
Can you put architectural shingles over 3 tab shingles?
In most cases, you can apply a second layer of three-tab shingles over an existing roof that features three-tab shingles without having to tear off the existing roof. However, you cannot apply three-tab shingles over architectural shingles.
Can you put 3 layers of shingles on a roof?
No, you can’t put three layers of asphalt shingles on a roof. In most states, you’re only allowed to have two layers of asphalt shingles on a roof for fire safety reasons. However, a reputable roofing contractor will recommend a full replacement if you already have two or more layers.
Are two layers of shingles OK?
Two layers of shingles trap more heat, which in turn damages the shingles and shortens the life span of the roof. Adding a second layer could compromise the structure of your roof. Problems fixing leaks: A second layer of shingles only complicates the job when a roofer is trying to fix a leak.
Do I need tar paper under shingles on a shed?
Roofing felt is necessary on a shed, as it not only protects the interior from water damage but also extends the life of your shingles. Felt is asphalt-infused synthetic or wood composite paper that repels water. It provides a smooth, unbroken surface for the application of shingles.
How do you finish the last row of shingles on a shed roof?
Here’s how to shingle the top edge of your shed roof: For the final row, cut shingles into strips. Ensure strips are wide enough to cover nails. Install your strips. Apply sealant over exposed nails on the last strip. Use more sealant along the top edges of all shingle strips.
Do you need a drip edge on a shed?
Your shed should be built to withstand the elements. That means repelling water in the most efficient way possible. Installing drip edge around the perimeter of the shed is the best way to keep water out and away from your shed.
How far should shingles overhang 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 long should roofing nails be?
Nails should be long enough to penetrate 3/4 of an inch into a roof deck; if a roof deck is less than 3/4 of an inch, nails should be long enough to penetrate and extend at least 1/8 of an inch through the roof deck.
How long do 30 year architectural shingles really last?
The truth is, a 30-year shingle will not really last 30 years. The expected service life of a 30-year product, if properly cared for, is approximately 25 years. If it’s not cared for properly, that 30 year shingle will only last 12 to 15 years.
Should shingles be staggered?
Call it whatever you want, you should be looking at roof shingle stagger. Stagger is important because, if the spacing is less than 4 inches, water can travel from joint to joint under the shingles and create a leak in the roof.
