Step 4 Prepare for the Shingle Installation Continue unrolling and tacking until you near the other gable edge. The variation in the lengths of the T50 staples entirely depends on the thickness of the felt and the density of the wood beneath it. The last part of the extended eaves edge flashing is folded back over the rake edge and nailed into place, thus sealing the exposed corner of the drip edge. Many metal roofing dealers specify minimum of 7/16" sheathing. Perhaps they were underdriven in the first place. According to the International Building Codes 2018 Edition, fasteners for asphalt shingles must be a minimum of a 12-gauge shank.While it is common to find nails with a shank diameter of 13 inches, they cannot be smaller than 12 gauge and still comply with the IBC. Fasteners should be long enough to penetrate at least 3/4" (19 mm) into wood decks or just . Materials used to make the natural and synthetic underlayment include; wood cellulose, polyester, and fiberglass. In normal wind zones the nails should be driven at 6.0 O.C. The nails should be spaced 6 to 8 inches apart, so the total number of nails you will use will depend on the size of the roof. Work up the roof to the peak and fold felt over the top, overlapping at least 3 inches and fasten it on both sides. Roofing felt underlayment before installation often corresponds with the local building codes and makes it easier to keep insects, vectors, and even dust particles away from the building. Start at one of the upper corners of the felt and continue along the perimeter. Start the roof felt at one bottom corner of the roof. Use with Dewalt DWTTH700 series, Stanley TRA700 series, or Arrow T-50 5/16, 3/8, or 1/2 staples. However, you may need more (480 nails per square) if you live in an area with severe weather conditions to ensure that your roof can withstand the high winds and heavy rain or snow. However, this doesnt rule out staples entirely. . Call the team on 01752 692760 or use the . Chalk lines should be snapped 33 5/8 above the eave line. Nails and staples are standard roofing underlayment options that you can use on all building products. As a result, roof nails can last for over 50 years, and most last for more extended periods provided the building is still standing. This can cause your roof to leak. "World." Its general knowledge that nail roofing felt, and staples are almost the same and give desired results: securing or holding the roofing felt. A staple gun is convenient because it is less bulky and can shoot a lot of staples in a short period. The quality of the material used is also an important consideration. Avoid using cement on the roofing felt, especially if you plan to re-shingle the roof that day. The rise is the height from the edge of your roof to the peak, while the run is the distance from the eaves to the peak. Bitumen is a waterproof mixture of coal-tar pitch or asphalt and other viscous and sticky organic liquids. This is because the staples are smaller and have a smaller head, which means they pierce the shingle less. There will be a tiny gap on one side of the nail or the other. Defer putting drip edge on angled gable ends until after the felt is laid, so the metal edge will block wind from lifting the felt. Head diameter According to the IBC, the minimum head diameter for a roofing nail that's in compliance with IBC guidelines is 9.5mm. Double that value and you have the full roof area. However, remember that you get what you pay forthe added durability of nails may mean they last longer and save you money in the long run. Uneven strips and wrinkles can allow dust, moisture and mold to develop. The M12 also has a functional belt clip which makes it easy to stow and free up your hands. No matter what fastening system you choose, follow the manufacturers instructions carefully to ensure a successful installation. In addition, nails are stable and allow roofers to get precise points when using them. This is helpful when you have a large roofing project. Staple guns are much easier to handle or work with; this is an added advantage of staples. The head diameter is typically a standard 3/8-inch for all roofing nails. Dont confuse these cap nails with gasket roofing nails. In fact, in some coast regions, the building codes require the entire nail to be corrosion-resistant, not just the outer surface. The average roll of 15-pound roofing felt covers about 400 ft2, or 4 squares, while the average roll of 30-pound roofing felt covers about 200 ft2, or 2 squares. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. Although this is admittedly a matter of opinion, many people feel that nails provide a neater appearance than staples. Determine the bundles of shingles needed to cover the roof. This means they will last longer and not rust as easily as staples. The roof leg goes under the underlayment and should be nailed every 8 to 12 along the deck with 1 aluminum or galvanized roofing nails. Point: diamond or blunt. The next step is to cap the ridge. Nevertheless, the proper thing to do is always to check the requirements of your local building authority before starting or embarking on a building project. The first course or starter strip is a 19-inch width of felt, and the next course overlaps it fully. They cost less per square foot to install than nails, making them a good choice for those working with limited funds. All of these methods could allow water through the roof. While all tar paper comes in rolls, you do have some control of what size roll you will purchase. However, aluminum nails are still used on asphalt shingle roofing by some roofers. All nails and staples should be placed on the lower half of the paper. Measure the deck from the bottom to top for the number of courses of paper. For asphalt roofing shingles, use galvanized nails. They are the most basic type of roofing nail and cheaper than the other two options. Directly answering if you can use staples for roofing felt depends on your local building authority and fire codes. Valley, ridges and hips should have a 6 inch overlap of paper. Used for fastening roofing felt for waterproofing or roofing tiles to metal. Roofing nails are available in lengths ranging from one to two inches. They are made from galvanized or stainless steel for durability and rust resistance. It effortlessly discharges up to 1500 staples per single 1.5Ah battery charge and has a power adjustment for different materials. Roofing nails should be 1-1/4 to 2 inches long to ensure that it sufficiently penetrates and embeds in the roof sheathing. Simply put, smooth shank nails have a smooth shank. Staples can be used for tacking it down, but not recommended to hold. Use only plastic cap, corrosion-resistant nails or staples with plastic caps. Use the nails with or without plastic caps. Lets pretend the roof design details are conventional and so the roof deck sheathing will be 5/8" to 3/4". Installing roof felt is a two-person job. The length of nail you use depends on the thickness of the sheathing and shingles you use. This makes them more likely to rust and break over time. A typical roll of 15-pound felt is 36 wide and 144 long and covers 432sqft. It is important to note that the nail and staple roofing felt have these outstanding qualities. Install the drip edge, so it projects past the ends of the eaves by about 3/4 at the gable or rake end. You can get away with using regular nails if working on a smaller project, such as repairing a leaky roof. Check the requirements for the roofing material that will go over the felt. The use of nails for roofing in an area may differ from another, but they are primarily similar; therefore, it is difficult to go against building codes when using roofing nails. At intermediate supports, fasten panels 12 inches on center. For irregularly shaped roofs, break it down into smaller rectangles or triangles to calculate the areas. This can cause your roofing material to lift, making it more susceptible to damage in a storm. Haring holds a Bachelor of Journalism from the University of Missouri. The lower edge will need to be trimmed to the drip edge. ONLY USE 1 diameter plastic cap roofing nails. The International Building Code requires that roofing nails have a minimum 12-gauge shank and a 3/8-inch diameter head. The most common include galvanized roofing nails and aluminum roofing nails, but you can also find copper and stainless steel roofing nails. Follow manufacturers instructions when choosing nails. Most roofing installation processes include attaching roofing felt ( roofing underlayment or tar paper) to the roof deck as recommended by the National Roofing Contractors Association (NRCA). Divide the resulting area value by the area one roll of 15 or 30-pound felt will cover, and round up as its sold in full rolls. Below we will explore an in-depth analysis of the two fastening systems to help you select the right one for your needs. Roofing felt nails are made of galvanized steel or aluminum, which resists corrosion better than standard steel staples. The steps are pretty much the same whether its a big roof or a small one. Whichever material you choose for your nails, remember that roofing nails are on the exterior of homes and therefore the outer surface needs to be corrosion-resistant. Fasten drip edge on eaves. The roofing felt should be applied in layers that overlap. There are fewer requirements for these nails than those used to secure shingles. How Long Are Roof Nails. A 36x72 roll covers 216sqft, weighs about 32-pounds, and has printed lines at 2, 4 and 17 for easier placement of upper courses and shingles. However, most roofers prefer staples because they are less expensive, have outstanding holding power, and enable roofers to work faster by covering an extensive space with their compact collection. Another benefit of roofing staples is that they cause less damage to shingles than nails. Common nails, or even wood screws, may be acceptable nails for OSB roof sheathing. Consider other underlayment options as needed, such as rubber or tar products. Two or more people are required to help roll out and straighten the paper during the process. For example, if you remove the nail and drive it back into the same spot, your aim wont be perfectly accurate. This is important since asphalt is a relatively soft and flexible material. For low slope roofs mark every 17 and snap a chalk line from gable to gable. of the face of the lower-course shingle on the other side of the corner. By using this website you accept our use of cookies and the. Installing roofing felt is easy to install and is the first step to protecting your roof decking and home. Also, when installing ridge and hip shingles, youll need nails that are about a half an inch longer, as they need to penetrate more shingle layers. Tags Not felt to timber. One of the most significant advantages of using a roofing nail is that it creates a stronger bond than a roofing staple on the roof decking. Synthetic or non-bitumen underlay has become a popular choice with roofers over the past decade. For slopes between 2/12 and 4/12, double the resulting area value and then divide by the area a roll of felt covers. Roofing Nails Best Seller Grip-Rite #12 x 1 in. That depends on the exposure and coverage of your shingles. (Must Read This). In addition, both require similar tools for installation. For budget-conscious homeowners, roofing staples are the more affordable option. Galvanized nails are also available in a variety of lengths and sizes. I hope you found the guide informative and have a better understanding of how to install roofing underlayment. Make sure to expose 5 in. It is versatile, strong, and affordable. They are waterproof or water-resistant and provide additional protection and a barrier against moisture penetration. Unroll the first course beginning at one gable edge and rolling to the opposite edge. Tack or fasten roofing felt using stainless steel " to " T50 staples or 7/8" to 1-1/2" hot-dipped galvanized or aluminum 12-gauge shank roofing nails with a 3/8" head diameter. The most common shingle roofing nail size is 3/8 inch diameter with a 1-1/2 or 2-inch length. Roofing Felt that exceeds the scuffed area by 6" (152 mm) The penny system is an old way of classifying nails. For example, you will need a roofing air nailer for felt nails and a roofing staple gun for staples. The puncture must be complete so that the whole diamond tip is past the wood. Roll out the first course, align it, tack it down with galvanized nails or staples, and cut it to size. Can Roofing Felt be Glued? Roofing nails are a type of nail that is made specifically for use in the installation of the different parts of the roof, like the roofing felt, the shingles, sheet metal, flashing, or roof tiles. and water shield should also be installed a minimum of 2 ft. past the inside bearing wall of the structure,so check the size of your overhang/soffit,and 6-8" of wall thickness,and calculate what you need by adding 2 ft. to the measurements,you`ll find in most cases ,1 . If there are hips, valleys, or dormers, increase the total by 10 to 25%. Aside from the lightweight of the roof staples, it is highly inexpensive and cost-effective, which is one of the reasons why most individuals or companies prefer to use them. removing the shingle and installing a new shingle, choosing between a nail gun and a roofing hammer. A larger-size head might increase the risk of exposing part of the nail head in standard nailing locations on the shingle. Multiply the width by the height for the square footage of each section, then add the . On the other hand, staples are larger and more visible. This 400g pack of joist hanger nails from Wickes are designed to secure joist hangers in roofing, ceiling, flooring and decking work. Start at the lower gable edge of the roof deck and work upward. Nails and staples have several significant differences. In areas where you can use extreme weather conditions, such as wind-driven rain, ring shank copper nails to seal or resist strong winds blowing over the roofs. A roof certification is a significant component of the overall roof maintenance management and significantly benefits homeowners. The cost of your roofing nails will depend on a few factors, including material, type and length. This inarguably depends significantly on the type of nails used. . Various nail shank types for different requirements. These factors above determine if your nail or staple underlayment is good enough to hold your roof. Not only is this roll affordable, it's also slip-resistant. Start at the bottom of the roofline and work up so any water that gets through the roofing material will shed down the tar paper and will not go under it. Give it the essential venting. Roof nails go deep into the roofing shingles and the roof decking, providing a firmer grip and preventing the asphalt from sliding around. This moderately-priced roofing nailer holds up to 120 nails per load and allows a variety of 11-gauge (.12 inches) nail sizes ranging from 3/4 of an inch to 1-3/4 of an inch. You may want to wear work gloves to avoid injuring your hand or developing blisters. The head diameter is typically a standard 3/8-inch for all roofing nails. Use the nails with or without plastic caps. The heavy-duty felt or paper is saturated or coated with bitumen. As a result, they are less susceptible to jamming and easily reload. This is because the nails are small and blend in with the paper backing of the roll. Unfortunately, when it comes to asphalt shingle roofs, they fall short in having enough holding strength. He is passionately interested in home improvement, renovation and woodworking. Cap nails or nails with a 3/8-inch head are also a good choice for roofing felt, as theyre less likely to come loose over time. If you were considering using screws for their extra security, consider ring shank nails instead. Nail the felt in using 0.59 inch (15 mm) galvanized clout nails. Rolled Roofing Basics. For nail spacing requirements, an online calculator will give you a breakdown of the minimum nails per square footage that is required for your roof. The added depth that roofing nails provide makes them less likely to come loose over time. One MSR roofing roll is usually about 36 feet long by 36 inches wide. 320 nails will be needed to install a square of standard 3-tab shingles, assuming four nails per shingle and 80 shingles per square. 8D nails are considered standard for OSB roof sheathing materials. The roofing nailers are designed for driving 12-gauge nails up to a depth of 1 inch whereas the framing nailer shoots large 16d nails to a depth of 3 inches. The weight or thickness needed will vary by regions, but 15-pound suffices in most locales. It takes 3 bundles to cover a square if you use 3-tab shingles, the most common type. This is essential in windy conditions or in areas that experience severe weather conditions. Taking the time to properly prepare the sheathing will make all the difference in how quickly and easily the felt paper is installed. The drip edge is nailed every 8 to 12 with 1 roofing nails, and the ends project 3/4 past the rake or gable end. Other Materials Some suggest you fill this hole with roofing cement, but this repair option must be done carefully to maintain the roofs water-shedding performance. Nail shank diameter should be at least 11-12 gauge for roofs. The chalk line provides a parallel reference line for aligning the felt courses. The roof leg has one to three ridges to slow moisture movement, the smooth vertical leg sheds water, and the kick-out pushes it away from the facia. There are various roofing nails available in different materials. After unrolling the first 5 to 10 or so, tack the gable edge and centerline of the paper once its aligned with the chalk line. Its always better to have too many nails to nail shingles than not enough. Synthetic underlayment comes in 10 square rolls, while regular #15 felt comes in 4 square rolls. This is How Far Apart Should Newel Posts Be! Rolled roofing (or roll roofing)also known as MSRcomes in rolls of 100 square feet. Specification Material: carbon steel, stainless steel, aluminum, copper. This means that using a staple to nails is four staples to 1 nail. The differences between the stable and nails are visible. By the end of your read, you should know how to install felt underlayment for asphalt shingles. They are easy to install and are unique in their work and functions. Aluminum nails are more prone to corrosion, as well as chemical and salt damage, than steel nails. Square cap nails may have a smooth or coiled shank. You cannot use screws for roofing shingles, only roofing nails are approved fasteners. They can also be overdriven or even underdriven. IKO strives to accurately reproduce the screen images of the shingle swatches and house photos shown. On the flipside, if you rush through the initial steps, the felt installation can be compromised by sloppy oversights such as stray nails. The sooner it is protected by shingles, the better. The drip edge protects the edges of the roof deck and is often installed after the underlay is attached. Then they nail it along the edge every 6 to 10 inches. Even though nails also hold roofing materials in place, staples are often preferred because they have a solid visible grip. Felt nails are less visible than staples. It must be covered with waterproofing membrane, usually "roof felt," also called tar paper. Heavyweight asphalt shingles commonly have a longer service life. The average 3-tab shingle needs four nails per shingle. In high-wind areas, more fasteners may be required. Clout nails should be 15mm large head clout nails. In this guide well discuss what roofing felt is, why it is necessary, and the different types of underlayment. 5 Energy Efficient Roofing Materials To Use. The cap nail shank shall be not less than 0.083 inch for ring shank cap nails and 0.091 inch for smooth shank cap nails. At the gable ends trim flush to the decking or leave 1/2 to 1 to wrap the edge when installing the drip edge. And while they may seem pretty straightforward, there are various factors to consider when choosing the suitable roofing materials and methods for your project. Are you looking out for ways of preserving your roof rafters to enable them to stand the test of time? (Must Read This), Pressure Treated Lumber For Roof Rafters (Lets See), Roof Sheathing Horizontal Or Vertical (Must Read). In terms of the installation, there is not much difference between the two fastening systems. Please refer to our Legal Notices for U.S.A. or our Legal Notices for Canada. Shed Roof vs. Gable Roof Comparison Guide. Step 11 Repair any areas inside the house that were damaged by the leak, and enjoy your dry house! Roofing felt products should not be glued to the decking in lieu of using nails or screws. Shank type: smooth, ring, screw. Remember to follow appropriate safety practices when working from ladders or on roofs. However, the size differs depending on the application and the local building codes. The best roofing nails for 7/16 sheathing are 3/8-inch to 7/16-inch diameter. Before laying roof felt, all rotten decking must be replaced. IKO assumes no responsibility for errors that may appear on this website. Felt nails have a more secure grip on the paper backing of the roll. In most jurisdictions, building codes require using nails for roof shingles. Begin the next course from the edge just cut, moving up to the next chalk line. Screws leave small gaps in the material they are driven into, and this may be enough to allow for a leak. Nail every 8 to 12 and approximately 1-1/2 in from the outer edge. The roof decking should be completely clean and dry. Felt is typically 3 feet wide, so that means a roll is approximately 144 feet long. Here are some reasons why felt paper is necessary: There are three main types of underlayment applied to roof decks prior to asphalt shingles and other roof coverings. Roofing felt is made of natural or synthetic materials such as wood cellulose, recycled cloth, fiberglass, or polyester. To calculate the slope or grade of your roof, youll need to measure the rise and run of your roof. This is a fabric impregnated with asphalt to form a moisture barrier. Where a roll ends and a new one is begun, the two rolls should be overlapped by four inches. According to BS 5534, the nails used to fix battens to rafters should usually have a diameter of at least 3.35mm. Note the differences in the specification and length of the fasteners as well as the nail/staple patterns. If you live in an area with high humidity, you may need to replace your staples more often. As a bonus, roofing staplers are easy to handle and do not require many repairs. For all Owens Corning shingles, roofing nails should penetrate into the wood deck by a . 19. (on center) on both head and end laps. Most domestic shed roofs will require at most two runs of felt before they come to the ridge. To install roofing felt, you need nails that have very wide heads to keep the felt . Table R803.2.3.1 specifies the maximum fastener spacing based on framing specific gravity, exposure category, and wind speed. Divide by 432 or 216 depending on the weight of felt for 4.89 rolls of #15 or 9.78 rolls of #30 felt. Plywood Under Deck Boards! Under most building codes in North America, 12-gauge is the minimum thickness of nail allowed on a roof.