In addition to these, nail felts are made from steel and used only to secure the roofing felt underlayment. They are called 8d common nails or 8-penny nails and can be round-headed, sharp-pointed 11-gauge galvanized steel or the equivalent corrosion-resistant roofing nails. 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. Account for waste. For the lower . A ring shank nail is also called an annular roofing nail or corrugated roofing nail. Roofing felt products should not be glued to the decking in lieu of using nails or screws. The weight or thickness needed will vary by regions, but 15-pound suffices in most locales. With 1000 per box, the 1/4 length is ideal for tacking roof underlayment. . 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. However, due to manufacturing variances, the limitations of your monitor resolution and the variation in natural exterior lighting, actual colors may vary from the images you see. Fasteners should be about 8 apart in the bottom 3/4 of the paper. It is required to block any rain that gets under or between shingles from penetrating into the wood decking. $3.19 $ 3. It sheds precipitation while awaiting shingles, protects the shingles from resins and glues leaching from the decking, and acts as a second line of defense against moisture. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. Staples are typically made from aluminum or other metals that are not as durable. Use stainless steel to T50 staples or 12-gauge shank 7/8 to 1-1/2 hot-dipped galvanized or aluminum roofing nails with a 3/8 head diameter. Many metal roofing dealers specify minimum of 7/16" sheathing. Roofing nails that are 11- or 10-gauge are also allowed by most building codes as they are thicker and sturdier. However, you may find they are more expensive. Many manufacturers offer 10-year guarantees for felt. Shed Roof vs. Gable Roof Comparison Guide. Cut the extended eaves drip edge flashing between the roof leg and vertical leg at a 45 or 90 angle to the rake edge. Such factors include the nail spacing requirements of the total area of your roof and the slope or grade of your roof. IKO assumes no responsibility for errors that may appear on this website. Well explain how to install the roof felt and drip edge, and make some tool and material recommendations. The ridge cap used on this roof . If you need to install new roof decking or OSB, youll need to nail it to the roof truss. In most jurisdictions, building codes require using nails for roof shingles. The rolls are typically either 50 or 100 feet long. The gasket is rubber, not plastic. However, as roofing nails will usually be hidden by the shingles above them, steel nails dont detract from the look of the roof. Due to these, Read More Plywood Under Deck Boards! 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. Roof nails go deep into the roofing shingles and the roof decking, providing a firmer grip and preventing the asphalt from sliding around. of the face of the lower-course shingle on the other side of the corner. In addition, the chances are that You can install staples incorrectly or inaccurately. Smooth application of the roofing paper will help you achieve a smooth installation of the shingles. However, in recent years, like in the last two decades, staples have been banned as an option for roofing and shingles because of fear of an incorrect installation. Rolls of felt are typically 36 wide, and low slopes require 19 overlaps. While this may not be a concern for some homeowners, others may find that staples are not as aesthetically pleasing as nails. Square cap nails are typically used for fastening felt underlayment and not asphalt shingles. in normal wind zones. The sun makes the felt brittle and more susceptible to tearing, and rain causes it to ripple. Installing roof felt is a two-person job. Besides, the type of underlayment used for roofing material is not much to bother because they are held mainly by many layers of shingles that weigh higher above the roofing felt underlayment itself. Rolled roofing is easy to obtain and can be found at all home improvement stores. Roofing felt nails are made of galvanized steel or aluminum, which resists corrosion better than standard steel staples. Factors such as type of fastener, accurate installation, placement, holding strength, and local building authority codes all influence why people choose nail or staple fastener for their roofing felt underlayment. Roof Felt. All of these methods could allow water through the roof. That being said, you can expect a small, 5-pound box of smooth shank galvanized steel roofing nails to cost around $10. Pressure-treated wood, Read More Pressure Treated Lumber For Roof Rafters (Lets See)Continue, As a homeowner, the various components of a roof are often vague, which might become a hindrance if you encounter roof problems, Read More Roof Eave Vs. Rake (In-Depth Comparison)Continue, Roof sheathing is one of the most common and significant parts of a building. Synthetic underlayment comes in 10 square rolls, while regular #15 felt comes in 4 square rolls. Can Roofing Felt be Glued? No matter what fastening system you choose, follow the manufacturers instructions carefully to ensure a successful installation. Its general knowledge that nail roofing felt, and staples are almost the same and give desired results: securing or holding the roofing felt. For a 30lb felt, you should use T50 staples which generally have inch wide crowns and a length variation that include , , , and inches. Nail every 8 to 12 and about 1-1/2 in from the outer face of the drip edge. If you are not sure what size of nails to use for your project, you can always consult the building department in . Still, these rings give the nail extra staying power, or grip, in the shingles and sheathing. Fit felt around vent pipes or other protrusions by cutting it with a utility knife and fastening around the bottom of the vent. 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. (Follow Correct Way)Continue. Nail down squarely (90 degrees) into the deck to secure caps flush to the underlayment. Cut it at the opposite gable edge, and roll out and staple the next course with the desired overlap. The information on this website is subject to change without notice. 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. Perhaps they were underdriven in the first place. Roofing and reroofing are two of the most common home improvement projects. 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. An 8d nail, for example, cost 8 pennies for 100. Choosing longer rolls will allow you to cover more roof surface with fewer seams. 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 caps help prevent tearing and are helpful for keeping the felt in place if it is windy, or if there will be a delay laying the shingles. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. What size nails for OSB sheathing? The lower edge will need to be trimmed to the drip edge. These factors above determine if your nail or staple underlayment is good enough to hold your roof. They can also be unsightly if they rust or break over time. The most pronounced advantage of the staple over the nail is that roofing staple guns can install four staples at once while nail guns can not. The overhang to the next strip should be 3/8 inch. Have a helper ready to assist with this step, and take care to get the lines straight and clean. Two or more people are required to help roll out and straighten the paper during the process. Be sure the tar paper lies in flat strips that are absolutely smooth. 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. 1 (19) 240 (1) 250 . ONLY USE 1 diameter plastic cap roofing nails. A larger-size head might increase the risk of exposing part of the nail head in standard nailing locations on the shingle. 4. We have the following; 3/8 x "3/8 7/16 x 1 - 1/2 1/2 x 5/16 1 x 5/8 For galvanized roofing shingles, they make use of a 16 gauge shank. The manufacturing process of felt nails is more complex than staples. Before applying roofing, you'll need to cover the sheathing with roofing felt, also often called "tar paper." Most local codes call for using 30-pound felt. Professional roofers look for the correct length because they want the nails to puncture the decking entirely. At the gable ends trim flush to the decking or leave 1/2 to 1 to wrap the edge when installing the drip edge. 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. Leave the top portion of the paper loose. Conclusion This is because a roofing nail has high holding power, unlike its counterpart. FREE delivery Tue, Feb 21 on $25 of items . Install the drip edge, so it projects past the ends of the eaves by about 3/4 at the gable or rake end. Although this is admittedly a matter of opinion, many people feel that nails provide a neater appearance than staples. To protect the rake or gable ends from wind-driven moisture, the drip edge is placed over the underlayment to seal it down to the deck. Unfortunately, it's not rated for fire resistance. Nails can pop above the roof surface for a number of reasons. Stainless steel nails are best used for slate and ceramic roofs or asphalt shingle roofs in coastal climates. Plywood Under Deck Boards! Cap Nails Popular Filters Length Measurement: 1-in Length Measurement: 1-3/4-in Length Measurement: 1-1/2-in Length Measurement: 7/8-in Grip-Rite Length Measurement: 3/4-in Sort & Filter Sort & Filter Sort By Featured Best Sellers Highest Rated New Arrivals Special Offers Bulk Savings (4) Length Measurement 3/8-in (2) 3/4-in (1) 7/8-in (1) 1-in (5) In addition, nails are stable and allow roofers to get precise points when using them. This website uses cookies to provide necessary functionality and to improve your online experience. Directly answering if you can use staples for roofing felt depends on your local building authority and fire codes. If youre using typical architectural shingles and 3/8-inch-thick sheathing, youll need 1inch nails. F1667 RSRS-03 (2 " 0.131") nails or ASTM F1667 RSRS-04 (3" 0.120") nails. Continue along the roof to the other end and trim the felt flush at the end with a utility knife. The felt should be secured every six inches with nails or staples. Make sure the nails are embedded securely into the felt and wood sheathing. Therefore, settling to use any of your options depends mainly on the slope of the roof of the building they are being installed on. At intermediate supports, fasten panels 12 inches on center. Overlapping sheet, shed felt adhesive sticks, felt to 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. In your building codes and international building codes, nails may be referenced as fasteners along with staples and screws. Consider other underlayment options as needed, such as rubber or tar products. Most domestic shed roofs will require at most two runs of felt before they come to the ridge. Its working rate is prolonged but heavyweight, making work tiring. Thicker and stronger than other organic underlayments, #30 Asphalt Saturated Underlayment paper offers superior tear strength and more secure footing for roofers, especially in steep-roof applications. The two main types are roofing felt 15 and 30. While all tar paper comes in rolls, you do have some control of what size roll you will purchase. 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. The heavy-duty felt or paper is saturated or coated with bitumen. This article will explore the pros and cons of each technique to help you make an informed decision for your next roofing project. The standard size for roofing felt paper is categorized into four. Some materials require heavier felt paper. The three types are: Asphalt, tar, or bitumen-saturated felt, Synthetic or non-bitumen underlay, and Rubberized asphalt underlay. In this case, youll want to use roofing nails made of robust materials such as steel or aluminum. Add more felt if required You should check with your building code and local bylaws to confirm. In normal wind zones the nails should be driven at 6.0 O.C. It is versatile, strong, and affordable. They have a square-shaped head, instead of the more typical circular head you see on other nails. Cost is an essential consideration for home improvement projects. Paper can be fitted around vent pipes by cutting a slit and then putting it over the pipe. Unfortunately, when it comes to asphalt shingle roofs, they fall short in having enough holding strength. Fasten drip edge on eaves with galvanized nails and a hammer, about 12 inches apart, before laying roof felt. Otherwise, all new nails should be inserted so that they are covered by the shingle above them. Roofing felt isnt designed to be left exposed to the elements. Drip edge flashing has three distinct parts and typically comes in 10 lengths. However, on low-slope roof applications from 2:12 to 4:12, roofers may use . Never mount the felt paper on wet sheathing. For example, when using Cambridge shingles, youll use roughly 240 nails, because of their Advantage size. Unroll the start of the first course, align with the edges and chalk line, and tack down the gable edge. The number of nails youll need for your roofing felt will depend on a few factors. The numbers refer to the actual weight of the felt. Plastic Round Cap Roofing Nail (3,000-Pack) 3.7k (161) Questions & Answers (18) Hover Image to Zoom share Share print Print $ 19 92 For use with housewrap, sheathing, and roofing felt Wide head for superior holding power Ring or spiral shanked for greater holding power View More Details A larger-size head might increase the risk of exposing part of the nail head in standard nailing locations on the shingle. Corrosion is always a concern with any metal roofing fastener. For most homeowners, aesthetics are essential when choosing a fastening system. Measure up the roof and snap chalk lines where the upper edge of each course will go. That depends on the exposure and coverage of your shingles. Fixing the nails is simply a matter of removing them, removing the shingle and installing a new shingle. It will protect the roof for about a month without shingles, provided it is fastened properly and it isnt too windy. Galvanized nails are also available in a variety of lengths and sizes. Check the weather. You cannot use screws for roofing shingles, only roofing nails are approved fasteners. Its not wise to attempt to reuse them, as they may cause problems on the new roof. 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. Drip edges on the eaves, any valley liners and all flashing should be installed before the tar paper is laid. 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. Roofing Nails Best Seller Grip-Rite #12 x 1 in. Ask your dealer for the correct amount of nails for your size roof, in the length you specify. -A 3/12 roof measuring 20x48 per half is 960 for a total area of 1920sqft. Roofing nails with gaskets are intended for metal roofs. Specifically, youll need roofing cap nails. Product Specs Type: Synthetic Size: 250 feet long by 4 feet wide Fire rating: None. [4] 4. Bitumen is a waterproof mixture of coal-tar pitch or asphalt and other viscous and sticky organic liquids. Felt nails have a more secure grip on the paper backing of the roll. Upper lengths of edge flashing should overlap lower lengths by a minimum of 6. Installing roofing felt is easy to install and is the first step to protecting your roof decking and home. Or, if a roofs decking has warped or bent, it can pull nails out of place. A roof certification is a significant component of the overall roof maintenance management and significantly benefits homeowners. It is available in rolls of 15 and 30-pounds per hundred square feet. Begin the next course from the edge just cut, moving up to the next chalk line. Taking the time to properly prepare the sheathing will make all the difference in how quickly and easily the felt paper is installed. There are fewer requirements for these nails than those used to secure shingles. Whats The Difference Between Staple And Nails? Of course, if you find yourself overwhelmed by the planning, preparation, or execution, you can reach out to professionals in your area. So, choose these nails where performance, especially wind resistance, is a priority. Typically 2 to 3 days will be required for this. There are a couple of different ways to attach felt. Galvanization adds a layer of zinc onto the steel that significantly inhibits rust and corrosion. For more tips on roof installation and tools, read our article about choosing between a nail gun and a roofing hammer. This is because there is more surface area for the nail to grip. (A Beginners Guide) Done. 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. As always, your comments and suggestions are appreciated. Mold and mildew will result and you could wind up having to rip off the roof and install a new one. Uneven strips and wrinkles can allow dust, moisture and mold to develop. Even though nails also hold roofing materials in place, staples are often preferred because they have a solid visible grip. Double that value and you have the full roof area. The International Building Code requires that roofing nails have a minimum 12-gauge shank and a 3/8-inch diameter head. Some roofers recommend laying a strip of adhesive rubberized membrane over the drip edge at the eave as an added protection. Each run of shed felt should overlap the next by at least 7.5cm. Your area can also affect the number of nails needed for your roofing project. The most common size is 3/8 inch diameter with a 1-1/2 or 2-inch length. 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. Start the roof felt at one bottom corner of the roof. Even if it is imperceptible to you, water will find it. And it has to be through and through, and the diamond tip will go past the wood. Heavyweight asphalt shingles commonly have a longer service life. Therefore, you have to plan out your sheathing thickness, shingle thickness and nail length carefully. Strips should always lay flat. (Follow Correct Way), What Does A Roof Certification Cover? Copper is strong and naturally resists rust and corrosion. Tack the gable edge and tack the bottom edge and mid-line as you unroll. Jewelry Box Felt Liner, A4 Size (8.3" x 11.8", Black) 4.6 out of 5 stars 2,348. However, felt nails edge out staples in terms of cost, hold, durability, and quality. Multiplied by 1.10 is 2112sqft. Roofing nail lengths are available in one to two inches. Today, the penny system refers specifically to nail length. Well walk you through the types, sizes and materials you may choose from when picking a roofing nail. It takes 3 bundles to cover a square if you use 3-tab shingles, the most common type. Put fasteners at least every 8 inches; some suppliers recommend staples about every 4 inches. Thus, you have to carefully plan the shingle and sheathing thickness and also the length of the nail. 4.6 out of 5 stars 94. Roofing felt is commonly used between roof deck sheathing and roof shingles. 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. Different roof slopes require different protection for asphalt shingles. Wood splinters should also be pulled out for a smooth, clean decking surface. Rolled Roofing Basics. Another benefit of roofing staples is that they cause less damage to shingles than nails. Visit the officia. Roofing nails are cleverly designed to help you do a better job. This inarguably depends significantly on the type of nails used. Fasteners should be long enough to penetrate at least 3/4" (19 mm) into wood decks or just . The synthetic underlay has greater water-resistance and the no-slip coating offers better traction for installation safety. Roof Felt Underlayment to Protect Your Home From the Elements The differences between the stable and nails are visible. 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 youre installing by the High Wind Application, youll use two more nails a shingle, so 360 nails per square. Type 316 Stainless Steel Nails - These are what you should be using on any new roof build involving an exterior wood product. Roof slopes from two units vertical in 12 units horizontal (17-percent slope) and . Once you understand what it does, and you know which one you need, you are ready to lay the underlayment for your roof. They are also less likely to leave behind unsightly marks on your top. This is because the nails are small and blend in with the paper backing of the roll. The most common width is 36", although they are sometimes available in other sizes. I will also need to overlap the felt, how much overlap should I use? Successive courses repeat the 19-inch overlap. 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. The first course commonly extends past the lower edge of the sheathing by 1/2 or to cover the drip edge. Another quality is its ability to withstand intense exposure to the sun over a long period. There are various roofing nails available in different materials. Installing roofing felt is the first step to shingling the roof deck and is an additional layer of protection for the roof. There are three basic types of roofing nails: The shank of the nail is the part of the nail that punctures through the material you are nailing. Dont tack the upper edge as it will be tacked down with the overlapping next course. For asphalt roofing shingles, use galvanized nails. I hope you found the guide informative and have a better understanding of how to install roofing underlayment. For slopes greater than 4/12 a single layer of felt is acceptable. By using this website you accept our use of cookies and the. Choosing the right roofing nails and driving them properly is essential for getting the best performance out of your roof.