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Where To Nail 3 Tab Shingles

Where To Nail 3

How to Nail Roof Shingles | Mastering the Roof by GAF


vtx531 said:Thank you, I appreciate the advice. You are right- my first time. I was able to read online and on the package all the other stuff but none of it explains…If the drip edge extends 1/2″ beyond the decking edge and the shingles another 1/4″ past that, then the nails on the edge of those shingles would be floating in mid air. That’s the thing I am trying to figure out how to do.

When Are Shingles Worn Out

The most obvious sign that your roof needs to be replaced is a leak. Since you don’t want to wait until that happens, inspect the shingles every year. Most asphalt shingles have a life span of 20 to 25 years, although they can wear out and need to be replaced in as few as 15 years, especially on the south side of the house.

Signs that shingles are failing include cupping along the edges and extensive cracking. In severe cases, the shingles will completely deteriorate. Buckling shingles are an indication that moisture is getting underneath them. If large sections of shingles are coming loose and falling off, it’s time for a new roof.

Shingles typically show signs of wear along the edges first. Rounded or curled corners are early warnings that the roof is ready or nearly ready for new shingles.

How Many Nails For Starter Strip Shingles

If you are installing starter strips and you should always use starter strips beneath your first course of roof shingles then youll need more nails. You should have at least 5 nails in your starter strip shingles, as they are your first defense against wind uplift and moisture penetration on your roof.

If you purchase a pack of starter strip shingles that covers 50 linear feet and your starter strip shingles are 40 long, then youll have 16 starter strip shingles per bundle. Multiply 16×5 and youll need at least 80 nails per one bundle of starter strip shingles.

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Button Up The Roof And Final Clean

Cover the roof right away to protect against rain. Buttoning up the roof is the final prep step before shingling. It consists of installing ice and water barrier and 30-lb. asphalt-saturated felt. This underlayment acts as a temporary weather barrier to keep rain out. But it won’t stop heavy rain and wind, so once you start a section, always try to flash and shingle it by the end of the day.

Ice and water barrier is used at roof edges and other vulnerable areas. To install it, snap a chalk line 36 in. from the edge of the eaves. If you have gutters, you’ll want the ice and water barrier to cover all of the gutter flashing that’s on the roof.

Starting at the rake edge of the roof, align the ice and water barrier with the chalk line. Tack it at the top with staples every few feet to hold it in place. Once the entire section is tacked along the chalk line, lift up the bottom part, peel off the backing, then let it fall back into place. The ice and water barrier will immediately stick to the roof.

Flip the top part of the ice and water barrier back over the bottom section , peel off the backing, then set it back into place on the roof. Work carefully to avoid wrinkles. They’re a hassle to get out. Move on to the next section of roof edge, overlapping the vertical seams of the ice and water barrier by 6 in.

How Roof Shingles Are Installed

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The specifics of how shingles are laid on your roof vary by manufacturer.

Some roofing shingles, such as Duration®, are applied with a 6-1/2-inch offset and a 5-5/8-inch exposure over a prepared roof deck. Contractors start at the bottom of the roof and work across the roofs surface and up.

Proper overlapping covers up the nails and provides a seamless, attractive look to your roof.

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The Contractor Cant Inspect Your Asphalt Roofs Decking

When you get a full roof replacement, your roof is taken down to its decking. This gives your contractor a chance to inspect the deckings integrity to see if it can handle your new roof.

When you get a nail-over, theres no opportunity to inspect the decking before installing your new roof. If one of the boards break during installation, the contractor will have to take off the old shingles, replace the piece of broken decking, put the old shingles back on, and start installing again.

This adds to the time it takes to replace your roof and can even add to the final cost of the job.

How To Nail Asphalt Shingles To A Roof

When nailing asphalt shingles to a roof, there is a right way and a wrong way to drive the nail. First, you do not want to nail at an angle. Nailing at an angle will cause the nails head to sit at an angle to the roof. That means part of the nail head will not contact the surface and will be a likely entry point for water.

Ensuring the heads of nails are flush with the roofs surface will prevent moisture from creeping into the nail holes of the shingles.

Do not overdrive nails. When hammering a roofing nail, you dont want the head to sink below the level of the shingle. If the nail looks indented on the shingle, youve probably driven it too far. Doing so risks damaging the roof shingle, as it will become more prone to cracking over time.

Under-nailing a roofing nail has the obvious consequence of being a water entry point. Without the sealing effect of a nail head hit flush to its surface, water will slide right under the nailhead and into your home.

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High Wind Nailing Pattern For Shingles Installation

When preparing for a roofing job you need more than just a good coil roofing nailer. You also need more than a solid understanding of OSHA safety rules. Whether it be a complete re-shingle or simply a repair, youre bound to hear talk about a high-wind nailing pattern. This goes double if you live near the coast or anywhere in Florida. In hurricane-prone areas high-wind nailing patterns are mandated by local building codes.

The high wind shingle nailing pattern came about in 2003. Since then, the International Building Code required roofers to fasten shingles using six nails. You must also properly space nails in front of the seal line. They required these high-wind-rated products on any roofs in wind regions rated at or above 110 mph. Shingle manufacturers now produce products rated somewhere between 60 and 130 mph, using two-hour duration tests.

See our article on How to use a roofing nailer.

Proper Nailing Techniques For Optimal Performance Of Asphalt Shingles

Common Mistake: Substituting Cut 3-Tab Shingles For Starter Strips

Roofing shingles have specific guidelines for how they should be fastened to your roof. They relate primarily to the quantity, location, and driving method of the roofing nails.

Proper installation is essential for optimum shingle performance and for compliance with the International Building Code. Learn where and how to nail shingles to ensure performance and holding power.

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Strip The Roof Start At The Peak Using Roofing Tear Off Tools

Start the tear-off at the section farthest from the trash container. Standing at the peak, use a garden fork or a specially notched roofing tear off shovel to tear away the ridge caps and the top courses of shingles.

Some roofers prefer forks because they don’t get caught on nails, making it easier and faster to remove the shingles. Others like the tear off shovels because they pull out more nails with the shingles. Work the fork under the ridge caps, prying them loose. As they come loose, allow them to slide down to the roof jacks. Or, if they don’t slide down the roof, carry them to the edge of the roof and throw them into the trash container.

What Nails To Use To Install Shingles Properly

Roofing nails should be no gauge higher than 12, which is the diameter of the nail shank. 11 gauge is better because it is thicker and thus has greater holding power. Length should be no shorter than 1 ¼ and the head must be at least in diameter.

Nails must penetrate the roof sheathing at least by ¾. If the sheathing isnt ¾ thick, then they must go through the sheathing by at least . Abiding by these requirements will ensure you have the right sized nail.

Installations of shingles that occur over the top of old shingles require nails that are, at minimum, 2 in length. This is to ensure the nail penetrates through both the new and old shingle, plus penetrates the roof deck by at least ¾.

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Driving Roofing Nails For Shingles

Roofing nails should be driven by hand with a hammer or with a properly adjusted pneumatic nail gun.

Nail guns that are improperly adjusted can result in either under penetration or over-penetration of the roofing nails, which then affects the shingles performance. It can also cause:

  • Nail corrosion
  • Buckling, and
  • Shingle blow-offs.

Roofing nails are typically placed no closer than 1 inch fromthe edge of the shingle according to the manufacturers specifications.

Fixing Nailing Mistakes

Its important that nailing errors are fixed immediately.

  • Underdriven nails can be appropriately tapped in with a hammer.
  • Crooked or overdriven nails need to be removed, and the holes need to be filled in with asphalt roofing cement.
  • A new nail must be driven in a nearby spot to secure the shingle. If this cant be done, the entire shingle should be replaced.

Nail Fastening Pattern

A four-nail fastening pattern per shingle is required to take advantage of the maximum wind warranty available on Owens Corning® Duration® shingles. Six nails are required for structures with slopes exceeding 60 degrees or 21 inches per foot. In some areas of the country, building codes may require six nails as well.

It is important to consult your local building department and to refer to the manufacturers installation instructions as the number of nails required often varies depending on the shingle product.

How Much Do Architectural Shingles Cost

Grip Rite GRCR19GAL Wire Collated Galvanized Coil Roofing ...

To buy architectural shingles you might be looking at around $25 per square foot. This is clearly more expensive than standard shingles, but you get what you pay for. They should last much longer and even save on energy costs by providing better insulation. When you also consider how much they could increase the value of your home, they might be much more affordable than you might think.

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Build The Open Metal Valleys

  • 4.1 – Install metal valley trim on the membrane, starting at the bottom of the roof.
  • 4.2 – Center the trim on the valley and secure the edge with roofing nails. The nail head must maintain the flashing in place. Do not perforate the metal.
  • 4.3 – Continue along the valley and lap sections of trim by at least 6″. Coat each overlay with plastic cement.
  • 4.4 – Establish two lines on either side of the valley where the shingles will end.
  • 4.5 – Place a line at the top, 3″ from the centre on both sides of the valley.
  • 4.6 – Deviate 1/8″ per foot as you bring the line down to the drip edge, where the maximum deviation should be 8″.
  • 4.7 – Snap the chalk line on both sides of the valley

How Do You Shingle A 3 Tab

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Considering this, how many nails do you put in a 3 tab shingle?

NAILING: Use galvanized 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.

Subsequently, question is, how many years does a 3 tab shingle last? Asphalt ShinglesA typical 3tab asphalt shingle roof will last anywhere from 10 to 20 years. 3tab shingles are an OK option for temperate climates, but they are not at all suitable for storm-prone areas.

Similarly, you may ask, what is the exposure on a 3 tab shingle?

3Tab Shingle ExposureIn the past, most 3tab shingles were Imperial-sized at 12 inches wide and 36 inches long with an exposure of 5 inches. Now, most 3tab shingles, typically referred to as metricshingles, are larger. Metric shingle exposure is proportional to their larger size, commonly 5 5/8 inches.

How do you start laying shingles?

Lay a starting row at the bottom of the roof along the edge.Place nails in the three tab shingles about 3/4 inch above the cutouts, near where the tab meets the upper part of the shingle. However, make sure that you do not nail into the tar strip.

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How Many Roofing Nails In A Pound

Using a nail weight chart will tell you that it takes 160, 11 gauge 1.5 roofing nails to make one pound of nails. It is more common to buy 5 pounds or more of roofing nails. Using the same type of nail means 5 pounds of nails will give you 800 roofing nails enough for 2.5 squares of standard 3-tab shingles.

If we take a 2000 square foot roof as an example, we know we need about 6700 nails to finish our roof. How many pounds is 6700? We know 160 nails equals a pound. If we divide 6700 by 160, we get a number close to 42. That means well need 42 pounds of standard 11 gauge roofing nails for a 2000 square foot roof.

How To Estimate How Many Roofing Nails Are Needed

Asphalt Roof Shingles Installation

When you go to the store to buy roofing nails, you will be buying them by weight, not number. Containers of roofing nails will indicate how many pounds of nails it contains, not necessarily a number. Therefore, you need to know how much a nail weighs so you can estimate the number of nails youll be buying.

Knowing the total amount of shingles, youll need for your roof will allow you to calculate the nails needed. Youll use starter strips on the eave and rake ends, and any gable ends you might have. Youll add up the linear feet of starter strip shingles required.

If that is 300 feet, and we know that 16 shingles cover 50 feet, that means youll need 96 shingles. 96 x 5 nails mean youll need 480 nails just for your starter strip shingles.

For a 2000 square foot roof, youll need 20 squares of shingles. If you use standard 3-tab shingles, youll need 312 x 20, which equals just over 6,200 nails.

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How To Install Architectural Shingles Over 3 Tab Shingles

Are you looking to remodel or spruce up the exterior of your home sometime soon? You might have heard someone talk about architectural shingles. If youve seen of heard of these but arent really sure what they are, then youre in the right place.

The main aim of architectural shingles is to give the look of heavy-duty roofing materials like slate or cedar, but at a fraction of the cost. Theyre also much cheaper and can be easier to install. In this article, were going to look at a few issues surrounding architectural shingles, along with whether theyre right for you and a few other issues if youre looking to get the job done. Keep reading for all the info you need on architectural shingles, including how to install them yourself if you want to give that a go.

Importance Of Proper Shingle Installation

Proper installation of shingle is essential. Shingles are not only for home beautification but also to protect your roof, home, and family from the elements. Improper installation of shingles could just defeat its purpose.Additionally, poor shingle installation may only result to rework. This means additional costs and time. Thus, it must be correctly installed.

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Install The Eaves Protection Membrane And Cover The Valleys

  • 2.1 – Install self-adhesive waterproof membrane 36-72″ wide on all fascia boards.
  • 2.2 – Unroll and align the membrane so that it overlaps the metal drip edge by 3/8″.
  • 2.3 – Temporarily attach the roof membrane at a few equidistant locations.
  • 2.4 – Fold back the lower half and peel off the release film.
  • 2.5 – Reposition and press down to ensure good adherence.
  • 2.6 – Remove the temporary installations and fold back the upper half of the membrane.
  • 2.7 – Peel off the release film, reposition and press down to ensure good adherence.
  • 2.8 – Repeat to cover the eaves and fascia.
  • 2.9 – Lap the end joins by 6″ and the lateral joins by 3″.
  • 2.10 – Install roof vents and other roof elements on the decking.
  • 2.11 – Cover valleys with self-adhesive waterproof membrane. Begin at the lower section of the roof. Center a 36″ strip so that half of the strip covers each side. Overlap each section of the membrane by 6-12″.
  • 2.12 – Lay the self-adhesive membrane to extend 4″ up the sides of the chimney and to form a 12″ strip on the roof around the chimney.
  • 2.13 – Cover ridges and crests so that half a strip covers each side.

Its Cheaper Than An Asphalt Roof Replacement


The main drive for people to try to reroof is the cost. When you nail-over your old shingles, most of the typical roof replacement process is left out.

Nailing-over doesnt require a tear-off, dump fees, underlayment installation, new flashing, or new decking. This allows for the labor and material costs to come down, making it cheaper than a full roof replacement.

I understand everyone has a budget and a full roof replacement is an investment some people cant make. But its crucial to the life of your roof that you invest in quality over picking the cheapest estimate out there.

To learn more about how investing in quality affects your roof, read this article on the 3 ways cheap roofs cost more in the long run.

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