Like roofing nails, roofing staples are available in various sizes to accommodate different thicknesses of roofing felt. F1667 RSRS-03 (2 " 0.131") nails or ASTM F1667 RSRS-04 (3" 0.120") nails. Depending on your local building authority, you can use staples for roofing felt or, in other words, as roofing felt underlayment. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. The length of each nail must be a minimum of 1 inches long, and for roof-overs, Atlas recommends a nail length of at least 2 inches. Tack the gable edge and tack the bottom edge and mid-line as you unroll. Roofing nails are cleverly designed to help you do a better job. Roofing staples are a fastener to secure roofing felt or tar paper to the roof deck. It starts with installing solid decking, usually plywood or oriented strand board, but that is not waterproof. Work up the roof to the peak and fold felt over the top, overlapping at least 3 inches and fasten it on both sides. They can also be unsightly if they rust or break over time. The T-50s are compatible with most brands of staple guns or hammers. If you take off a shingle for repairs or take off the whole roof in preparation for a reroofing job, youll have a ton of roofing nails on hand. Divide the total footage by 100 to determine the number of "squares" in the roof. Nails that didnt fully penetrate the sheathing may work their way up over time. 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. Before laying roof felt, all rotten decking must be replaced. Starting at the eave, 36-inch-wide (914 mm) strips of underlayment felt shall be applied overlapping successive sheets 19 inches (483 mm) and fastened sufficiently in place. Overlay a second layer of felt 2 to 3 inches and fasten it through the overlay so it secures the top of the felt underneath. Although this is admittedly a matter of opinion, many people feel that nails provide a neater appearance than staples. Nail guns are pretty easy to use as there is no risk of an incorrect installation even if the gun is not held in the correct position. . 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. Another quality is its ability to withstand intense exposure to the sun over a long period. It also helps the roof sheathing by preventing leaks and extending its lifespan. NOTE: Not all products featured will be available in your area. Staples are typically made from aluminum or other metals that are not as durable. What size nails for OSB sheathing? of the shingle tabs where the bottom edge of the tab meets the top of the cutout. Of course, as your nails will be on the exterior of a home, they must have rust and corrosion protection. Roofers tend to use the roofing nails they already have on hand to install flashing. In your building codes and international building codes, nails may be referenced as fasteners along with staples and screws. Running a flat bottom shovel along the roof decking will help you find any stray nails that should be pulled. Type 304 Stainless Steel Nails - These are the middle of the road and also only recommended for indoor use, as they are rust-resistant but not rust-proof. of the face of the lower-course shingle on the other side of the corner. There are fewer requirements for these nails than those used to secure shingles. The weight or thickness needed will vary by regions, but 15-pound suffices in most locales. removing the shingle and installing a new shingle, choosing between a nail gun and a roofing hammer. For larger projects, youll need to use bigger nails so that they can better support the weight of the roofing felt. Aug 15, 2010. Synthetic Roofing Felt, do not use nails or staples without caps. The standard size for roofing felt paper is categorized into four. Share this Post: Back to Home. This inarguably depends significantly on the type of nails used. The steps are pretty much the same whether its a big roof or a small one. 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 . They install it by tacking one end, rolling it out, and centering it on the ridge. Determine the bundles of shingles needed to cover the roof. The lower edge will need to be trimmed to the drip edge. Install the drip edge to the eaves (the lower edge of the roof) prior to rolling out the felt, or slide it under the felt underlay and over the fascia. Because they are less secure than nails, staples are more likely to lose over time. Drip edge flashing has three distinct parts and typically comes in 10 lengths. Some roofing felts are actually glued down. However, you may find they are more expensive. 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. Multiply the width by the height for the square footage of each section, then add the . This article will explore the pros and cons of each technique to help you make an informed decision for your next roofing project. Wood splinters should also be pulled out for a smooth, clean decking surface. The penny system is an old way of classifying nails. Plus, they may have been otherwise damaged. It effortlessly discharges up to 1500 staples per single 1.5Ah battery charge and has a power adjustment for different materials. He is passionately interested in home improvement, renovation and woodworking. You may find roofing nails identified by their penny length. However, on low-slope roof applications from 2:12 to 4:12, roofers may use . Chalk lines should be snapped 33 5/8 above the eave line. This makes it 320 nails per square foot. In normal wind zones the nails should be driven at 6.0 O.C. 5 Energy Efficient Roofing Materials To Use. Tack the next course or layer into place. IKO strives to accurately reproduce the screen images of the shingle swatches and house photos shown. The information on this website is subject to change without notice. Pull the felt tight so that it lies flat and straight. Roofing felt nails or staples in time past was quite challenging to distinguish which of the two roofing options is better clearly. Roofing felt isnt designed to be left exposed to the elements. Nail every 8 to 12 and approximately 1-1/2 in from the outer edge. Galvanized nails are also available in a variety of lengths and sizes. Choosing the right roofing nails and driving them properly is essential for getting the best performance out of your roof. HousingHow Roofing Roofing Felt Nails Or Staples? 15-pound roofing felt costs around $20 for just over 420 square feet. This means they may lose over time, especially in high winds or severe weather conditions. Then, fix the top edge of the felt just below the apex of the shed's roof, using galvanized steel clout nails at 4" or 10cm intervals. Roof nails go deep into the roofing shingles and the roof decking, providing a firmer grip and preventing the asphalt from sliding around. Exposed nails are those with visible nail heads. Aluminum is a weaker metal than steel and copper. 1. The next step is to cap the ridge. These applications are ideal for flat roofs or protective surfaces under roof-level decks. Begin the next course from the edge just cut, moving up to the next chalk line. Some roofers prefer to attach felt underlayment with one-inch roofing nails ,or special nails with plastic washers, but most codes allow staples, which are easier to drive. IKO manufactures products for specific areas in North America. The sun makes the felt brittle and more susceptible to tearing, and rain causes it to ripple. This can cause your roof to leak. The main drawbacks are cost and the need to use capped fasteners. You may be tempted to reuse these to save on costs. Specification Material: carbon steel, stainless steel, aluminum, copper. Corrosion resistant to ensure they last over time, and for use where strong joints are required. Check the weather. . Roofing nails should be 1-1/4 to 2 inches long to ensure that it sufficiently penetrates and embeds in the roof sheathing. 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. Do not simply hammer the nail down, renail it in the same spot, or use the same shingle. On shallow sloped roof, we would suggest the overlap is increased to 75mm. 3. Place your nails in a plastic cap or one with nails. When ridge vent installation is performed correctly, the vent increases the home's energy efficiency and extends the life of the roof. Smooth application of the roofing paper will help you achieve a smooth installation of the shingles. Dont confuse these cap nails with gasket roofing nails. Measure the deck from the bottom to top for the number of courses of paper. On the other hand, Roof nails have a more substantial and extended holding strength. Head diameter: 0.55" - 0.79". 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. The three types are: Asphalt, tar, or bitumen-saturated felt, Synthetic or non-bitumen underlay, and Rubberized asphalt underlay. As you work, the paper can be tacked down in the center so it wont blow away. Roofing staples have a broad, flat head that helps to keep them in place and prevent them from pulling through the roofing material. It is important to note that local building and fire codes may require cap nails instead of staples, so check the fine print. According to BS 5534, the nails used to fix battens to rafters should usually have a diameter of at least 3.35mm. Shank diameter. Leave about 5cm between each nail, and ensure the sheet is pulled tight and sitting in line with the roof. They may or not allow staple roofing felt. Roofing felt nails like cap nails are generally more expensive than staples. Align this layer with the bottom of the roof; snap a chalk line the length of the roof, spaced to the width of the felt roll, to aid in keeping layers straight. With that said, lets explore your roofing nail options and which is best for your next roof. 1. For best performance, you should use ring roofing nails that are made of hotdipped galvanized steel. Installing a roof is much more than just nailing shingles onto some boards. The cost of your roofing nails will depend on a few factors, including material, type and length. There are certain qualities that roofing felt underlayment must possess. #30 Asphalt Saturated Underlayment Benefits. ONLY USE 1 diameter plastic cap roofing nails. Be sure the tar paper lies in flat strips that are absolutely smooth. Roofing felt nails are less visible than staples, which give your roof a neater appearance. These have large plastic caps for heads, which help prevent water intrusion. Since retiring he has written freelance stories and a weekly computer security column. Roof felt is often called tar paper and is commonly used in similar ways, however, they are different. Qualities such as good waterproof ability even in every kind of weather, especially in areas with very high wind and a tendency for wind-influenced rain. Multiplied by 1.10 is 2112sqft. 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. Ridges, hips, and valleys should overlap at least 6-inches beyond the centerline, and there should be a similar overlap below vent pipes and utility stacks. You can learn more about the sizes of staples here. Finished Product We'd love to see how your project to replace roofing felt turned out! Most professional roofers use staples instead of nails when installing roof felt on larger roofs. Roofing felt nails are made of galvanized steel or aluminum, which resists corrosion better than standard steel staples. You need #buttoncapnails in order to nail down your roofing underlayment on your roofing project whether it's tar paper or or even peel in stick in some area. In this guide well discuss what roofing felt is, why it is necessary, and the different types of underlayment. How to Install Owens Corning Roll Roofing, How to Install Ridge Caps for Metal Roofing, Home Building Mentor: How to Install Roof Felt, Warrior Roofing: Roofing Felt Installation Instructions, How to clean a showerhead, according to an expert, How to Put Rigid Foam Insulation on the Roof Before Putting on Shingles. Attach or tack roofing felt to galvanized or aluminum 12-gauge roofing nails with a 3/8" head diameter with stainless steel staples 1*4" to 12" T50 staples or 7/8" staples to 1/2-inch hot dipped galvanized or aluminum nails. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. Repeat until the roof is covered. Screws leave small gaps in the material they are driven into, and this may be enough to allow for a leak. Heavier roll weight. Overlap the end of a roll about 4 inches with the start of a new roll and fasten both pieces to the decking. A tape measure and chalk line are needed for snapping the guidelines on the roof. They are the most basic type of roofing nail and cheaper than the other two options. Copper is strong and naturally resists rust and corrosion. 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. If required by code, wind conditions, or just regular practice, use plastic capped roofing nails. For irregularly shaped roofs, break it down into smaller rectangles or triangles to calculate the areas. "World." Construction stapler or plastic washer nails. Roof slopes from two units vertical in 12 units horizontal (17-percent slope) and . If you have any further unanswered questions or want to know more about the best roofing nails for your project, don't hesitate to get in touch. Where a roll ends and a new one is begun, the two rolls should be overlapped by four inches. 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. As a result, most local building authorities have banned staples for roofing. Roll out the first course, tacking it down as you go. Table R803.2.3.1 specifies the maximum fastener spacing based on framing specific gravity, exposure category, and wind speed. Here is what a roof certification letter encompasses. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. Many manufacturers offer 10-year guarantees for felt. On low slope roof decks between 2/12 and 4/12, the recommended overlap for roofing felt is a minimum of 19-inches. The Hillman Group 42041 Galvanized Roofing Nails, 1-Inch, 100-Pack. On the flipside, if you rush through the initial steps, the felt installation can be compromised by sloppy oversights such as stray nails. Square cap nails are typically used for fastening felt underlayment and not asphalt shingles. Sheradised Square Twist Nails are invalueable when working with timber construction. Uneven strips and wrinkles can allow dust, moisture and mold to develop. Eugene has been a DIY enthusiast for most of his life and loves being creative while inspiring creativity in others. What Size For Roofing Felt? (Follow Correct Way), What Does A Roof Certification Cover? If youre using typical architectural shingles and 3/8-inch-thick sheathing, youll need 1inch nails. Rolled roofing is easy to obtain and can be found at all home improvement stores. If youre unsure how to install roofing felt or are just looking for some pointers, this guide is all you need. Its always better to have too many nails to nail shingles than not enough. But at the same time, you have a lot of jams on the felt paper while working with nail guns, roofers who use staples any form of jam. All rights reserved. Account for waste. When protected by well-maintained shingles, the underlay will last between 20 and 30-years, or as long as the asphalt shingles. 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. When you arrive at the rake, the paper should be cut flush with a knife and then adjusted to line up with the chalk line. That is because the cement will take longer to dry, and when you remove it after it dries, you will cause damage to the roof. Many factors have influenced the shift from using felt nails in modern times. Not only is it tedious to yank these nails out, but their zinc coating will also be worn. Dont tack the upper edge as it will be tacked down with the overlapping next course. They also go against most building code error codes and local building authority standards. Roll the first large piece of felt over one side of the roof, allowing the excess to overhang. As its many names suggest, this type of nail has rings along the shank. Ideally, your roof will not have any exposed nails, with the exception of the last cap shingle (and those nails should be covered in roofing cement.) For budget-conscious homeowners, roofing staples are the more affordable option. This is because they are faster and easier to install than nails. This is helpful when you have a large roofing project. Roofing nail lengths are available in one to two inches. Arrow 1/4-Inch T50 Monel Rust Proof Staples, Building Code [IRC2018 Table R905.1.1(2)] requires two layers of underlayment for low-slope roof decks between 2/12 and 4/12, Local Codes may require it for slopes greater than 4/12, Many home and roof warranties require felt paper, NRCA (National Roofing Contractor Association) recommends bitumen, asphalt, tar, or synthetic felt for asphalt shingles, The NRCA recommends water-resistant underlayment for roof slopes greater than 3/12, Roofing felt helps to prevent pitch, uneven or sharp edges, and nails from damaging shingles, Some shingle warranties are void if felt isnt used, Necessary to meet Class A fire rating with some shingles, Provides additional protection to the roof decking against moisture penetration, When removing old shingles, fully remove and replace the old felt with new felt, Made of tar, asphalt, or bitumen-saturated organic or fiberglass substrate felt paper, Commonly used for slopes greater than 3/12, Water-resistant and breathable, not waterproof sheds moisture, doesnt trap it, 15-pound is lighter and thinner, and easier to damage; it has a permeability rating of 5, 30-pound is thicker and stiffer, and more resistant to damage; provides greater protection, Must overlap 19-inches or more on a low slope, 2/12 to 4/12, to form a double layer on the whole roof deck, On slopes greater than 4/12 the courses of felt should overlap at least 2-inches, Commonly fastens with staples or in high wind areas with plastic capped nails or plastic wind-strips, Compounds leach out over time and with sustained exposure to heat it becomes more absorbent, Manufactured from polyethylene or polypropylene, plus fiberglass in an asphalt-saturated base layer, Equivalent to felt but withstands higher temperatures, Lighter and stronger than felt, wrinkle-free, and may have a non-skid coating that is slip-resistant even when wet, Resistant to moisture, mildew and fungal growth, and UV damage, Can be left weather-exposed for 6-months or more, Overlap depends on the slope and manufacturers instructions, Fastens to deck with roofing nails or plastic cap nails staples arent recommended, May void warranties for some asphalt shingles, Polyester or polyethylene layer bonded to a weather-resistant non-skid upper layer, May have a moisture-resistant polymer film and/or a mineral coating melded to the upper layer, Typically self-adhering with a peel-off membrane protecting the adhesive side, Rubber-like material will self-seal around nails and staples, making it waterproof, Very flexible for irregular surfaces and different temperature extremes, May be designed to resist high-temperatures up to 250F, May be fiberglass-reinforced or polymer-modified for strength and elasticity, May have a selvedge edge or sticky strip along the upper edge to form a stronger watertight seal with the overlapping upper course, Typically more expensive than other underlay treatments. The added depth that roofing nails provide makes them less likely to come loose over time. $3.19 $ 3. This goes a long way to bring to light how durable nail roofs are. Nails for roofing felt are also more expensive than typical nails. Installing roof felt is a two-person job. Overlapping roofing felt protects the roof deck from seepage, wind-driven precipitation, and ice-dam back-up. It also doesnt wrinkle when wet or crack and split in the cold. (Follow Correct Way)Continue. Roof Felt Underlayment to Protect Your Home From the Elements Fortunately, galvanized roofing nails and steel nails pass the building code test. This is a fabric impregnated with asphalt to form a moisture barrier. For most homeowners, aesthetics are essential when choosing a fastening system. The head diameter is typically a standard 3/8-inch for all roofing nails. Staples are also not as durable as nails and are more likely to come loose in high winds. Upper lengths of edge flashing should overlap lower lengths by a minimum of 6. Type 316 Stainless Steel Nails - These are what you should be using on any new roof build involving an exterior wood product. Underlayment, also known as roofing felt or tar paper, is a layer of protection that roofers install between your roofing deck and the roofing shingles or tiles. If you live in an area with high humidity, you may need to replace your staples more often. Nail every 8 to 12 and about 1-1/2 in from the outer face of the drip edge. Most roofers use four nails per shingle and five nails for each roofing felt square. That is why they are used for additional water tightness in extensive wind areas to reduce the chances of wearing and tearing. What Type of Nails Should be Used with 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. Stainless steel nails are best used for slate and ceramic roofs or asphalt shingle roofs in coastal climates. This step is vital to the success of your new roof and must not be shortchanged in any way. roofing company near me. They cost less per square foot to install than nails, making them a good choice for those working with limited funds. Local codes may have different requirements, and shingle manufacturer warranties often specify underlayment requirements, so check them out too. I will also need to overlap the felt, how much overlap should I use? And it has to be through and through, and the diamond tip will go past the wood. Choosing longer rolls will allow you to cover more roof surface with fewer seams. Mold and mildew will result and you could wind up having to rip off the roof and install a new one. Staples also have lower holding strength when compared to nails. This is because a roofing nail has high holding power, unlike its counterpart. The most common size is 3/8 inch diameter with a 1-1/2 or 2-inch length. As always, your comments and suggestions are appreciated. Not felt to timber. Start at one of the upper corners of the felt and continue along the perimeter. 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. 2004-2023 IKO Industries Ltd., IKO Industries, Inc., and their affiliated and related entities. Here at Roofing Superstore, we've put together a guide outlining the different types of roofing nails, and which materials they work best with, so read on. Metal Mesh in Drywall: All You Need To Know, Does Drywall Tape Need To Be Completely Covered? They can also be overdriven or even underdriven. What Type of Nails for Felt/Underlayment? Add 10% to the shingle estimate to account for waste. You can get away with using regular nails if working on a smaller project, such as repairing a leaky roof. . 2. However, aluminum nails are still used on asphalt shingle roofing by some roofers. Back in the day all I used was staples and /or roofing nails now plastic tops . I hope you found the guide informative and have a better understanding of how to install roofing underlayment. All of these methods could allow water through the roof. Once you understand what it does, and you know which one you need, you are ready to lay the underlayment for your roof. By using this website you accept our use of cookies and the. Nevertheless, it is essential always to consult the products to see if the producers have a laid-down procedure of which of the two roofing options are best for their products and how you should use them. To calculate the slope or grade of your roof, youll need to measure the rise and run of your roof.
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