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. via
What size nails do you use for shingles?
The International Building Code requires that roofing nails have a minimum 12-gauge shank and a 3/8-inch diameter head. via
What type of nail is used for asphalt shingles?
For asphalt roofing shingles, use galvanized nails. Galvanization adds a layer of zinc onto the steel that significantly inhibits rust and corrosion. There are two methods of galvanizing nails: hot‐dipped and electro‐galvanized. via
How do you calculate roofing nails?
Divide the entire square footage by 100 to reach the estimated amount of shingles needed. Multiply the estimated amount of shingles by 2 to 2 1/2. The resulting figure is an estimate of the pounds of nails needed. via
Do you nail down roll roofing?
In most cases you can simply overlap the sheets at the ridge using roofing cement and nails for the final piece. However if the final piece does not come down at least 8 inches past the peak, cover the peak with a 16-inch-wide strip that is embedded in cement. via
Can roofing nails be too long?
Roofing nails should be long enough to penetrate the roofing material and go 19 mm into OSB, solid wood, plywood or non-veneer wood decking, or through thickness of decking, whichever is less. Some situations allow nails with less penetration above exposed soffits if extra nails are used. via
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. via
Is it better to hand nail shingles?
Technically, it does not matter if a roofer hand or gun nails the asphalt shingles on your new roof. Both methods are approved by roof manufacturers, so there is no “right” or “wrong” way. If the nail is driven outside that area, it could impair the roof and void the manufacturer's warranty. via
Do you nail or staple shingles?
Fasteners for asphalt shingles should be roofing nails or staples. The head of a roofing nail or the crown of a staple is what actually holds a shingle in place. If staples are properly installed, they offer nearly the same wind resistance as nails. via
What size roofing nails are best?
Proper Nail Application For Asphalt Shingles
Nails should have a minimum, nominal shank diameter of 11- or 12-gauge, and a minimum head diameter of three-eighths of an inch. The length of each nail must be a minimum of 1¼ inches long, and for roof-overs, Atlas recommends a nail length of at least 2 inches. via
Can you nail through shingles?
Yes, professional roofers use nails to apply shingles, but they do so in a very specific way so that each nail is covered by the shingle above it. Adding another nail above the shingles compromises your roof system. A roofing professional will choose corrosion-resistant screws for this job, not just nails. via
Why do roofers use nails instead of screws?
Nails are often preferred for structural joining, including framing walls, because they are more flexible under pressure, whereas screws can snap. Nails are also called upon when securing plywood sheathing for exterior walls, installing hardwood floors, and attaching siding and roofing. via
How many roofing nails do I need per square?
Generally, you should use four nails per shingle in the field of the roof, and 5 nails per starter shingle. For regular three-tab shingles, this would require 320 nails per square for field shingles. via
How do I calculate my roof size?
Multiply your house length by your house width to get the area. (For example, 40 feet x 30 feet = 1,200 square feet.) Next, multiply the area by your roof's pitch. (1,200 x 1.05 = 1,260 square feet.) via
Where do you nail shingles? (video)
Do you need underlayment for peel and stick roofing?
Unlike asphalt underlayment, which tends to crack and tear, peel and stick underlayment is more flexible and durable. Since it's so simple to install, the risk of improper installation is minimal. Depending on where you live, the building code might require you to install peel and stick underlayment specifically. via
Can you put rolled roofing over old rolled roofing?
Rolled roofing is very adaptable and can be cut into 12-inch by 36-inch strips to act as hips and ridges or 9-inch strips for eaves and rakes. If removing your current shingles is a problem, it is usually permissible to re-roof over your existing roof with rolled roofing. via
How do you glue down rolled roofing? (video)
How do you hide shingles on your nails?
So, the recourse now is to hide the nail penetrations. As previously mentioned, adding T&G, or T&G looking plywood (either of which would be more decorative), or just plain smooth plywood between the rafters- if you want to keep the exposed rafter look- or cover the entire area with ply and call it a day. via
Can I use screws for roof shingles?
Areas that commonly experience hurricane-force winds typically don't allow staples to be used. The type of fastener used to fasten the shingles is especially important for resisting wind uplift and pull-through. Fasteners for asphalt shingles should be roofing nails or staples. via
How far should a nail penetrate?
Rule of Thumb #2 – Use a nail that will penetrate the item you are nailing to (not through) at least 3/4″. via
How many years does a 3 tab shingle last?
Their average lifespan is about 18 to 20 years. However, they may last up to 30 years under optimal conditions. When 3-tab shingles are exposed regularly to severe weather, they may last about 7 to 10 years. via
How many nails do you need for starter shingles?
If you are installing starter strips – and you should always use starter strips beneath your first course of roof shingles – then you'll 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. via
Can you put 3 tab shingles over architectural 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. via
Do you nail shingles in the tar strip?
Because the thickness, weight, and shape of shingles vary, manufacturer's instructions vary slightly. But virtually all manufacturers agree that nails should be installed below the adhesive strip. via
Is it OK to lay shingles in the rain?
Never lay roof shingles when it is raining
If the roof is not covered correctly there will be a risk of leakage into the wooden deck or other parts of the roof and/or building. During a rain shower the roof also becomes slippery, which can cause dangerous conditions for the roofer. via
Can you use a hammer instead of a nail gun?
Nail guns are powerfully driven forces that can get you working through a job quickly and fairly efficiently. They may not always be accurate for the jobs you need them to be on, however. Hammers have been around for as long as humans have, and have proven to be an effective design. via
Can you use a staple gun for shingles?
Today, staples are considered an inferior method of attaching shingles to a roof, but it's easy to understand why roofers like staples. Staple guns are smaller and better balanced. Coil nail guns are literally fed with a coil of nails, and the holder for the nails makes the gun much bulkier. via
Can you use staples for roof sheathing?
Staples are not recommended for roof sheathing attachment in high-wind areas. It is extremely important to have proper fastener spacing on all panels. Loss of just one panel in a windstorm can lead to total building failure. via
Can you use staples on synthetic underlayment?
An installer needs to follow the directions when installing synthetic underlayment, just like any other building material. Most synthetic manufacturers require the product to be fastened with capped nails, not staples. This is especially true if the product will be left exposed for any length of time. via
What material are roofing nails coated with so they won't rust?
Roofing nails tend to be galvanized, a process that makes stainless steel resistant to rust by coating it in a layer of zinc, which does not rust. Galvanization is very important when it comes to roofing nails, but even here you need to be careful because there are different types of galvanization. via
Are roofing nails aluminum?
The standard, cheapest and most commonly used roofing nails are smooth shank nails. They are generally made of aluminum, stainless steel or copper, and they're not as strong. The shank length you need depends on the roofing material. via