Leave about 5cm between each nail, and ensure the sheet is pulled tight and sitting in line with the roof. Cap nail shank shall have a length sufficient to penetrate through the roof sheathing or not less than 3/4 inch into the roof sheathing. Roofing staples are a fastener to secure roofing felt or tar paper to the roof deck. Nail shank diameter should be at least 11-12 gauge for roofs. The downside of roof nails is that they are bulkier and prone to multiple jams while working with them. Of course, if you find yourself overwhelmed by the planning, preparation, or execution, you can reach out to professionals in your area. Highly visible alignment lines. Proper roofing practices call for a plywood roof deck at least one inch thick, 3/4-inch galvanized nails, and 3/8-inch head nails. This can be done prior to tacking or afterward. Measure the width and height of each section separately. By the end of your read, you should know how to install felt underlayment for asphalt shingles. When ridge vent installation is performed correctly, the vent increases the home's energy efficiency and extends the life of the roof. You cannot use screws for roofing shingles, only roofing nails are approved fasteners. While nails are mostly used with asphalt shingles, staples can be used with various roofing materials such as fiberglass mat, roll roofing, and thatch. Aluminum nails are more prone to corrosion, as well as chemical and salt damage, than steel nails. The manufacturing process of felt nails is more complex than staples. Nails for roofing felt are also more expensive than typical nails. Roof Felt Underlayment to Protect Your Home From the Elements If you take the time to properly prepare the roof, then laying the felt will be easy. Not felt to timber. Local codes may have different requirements, and shingle manufacturer warranties often specify underlayment requirements, so check them out too. Bob Haring has been a news writer and editor for more than 50 years, mostly with the Associated Press and then as executive editor of the Tulsa, Okla. Unroll the first course beginning at one gable edge and rolling to the opposite edge. The longer it is left uncovered, the more it will weather and fade. This point is expertly designed to keep the decking intact when it punctures through. There are fewer requirements for these nails than those used to secure shingles. Fixing the nails is simply a matter of removing them, removing the shingle and installing a new shingle. They are made from galvanized or stainless steel for durability and rust resistance. Otherwise, all new nails should be inserted so that they are covered by the shingle above them. well overall size is 15x8 and from ground to pitch of the roof it should not be more than 10 feet.I am thinking front 15 feet wide wall will have a higher side of roof and back 15 feet wall . However, the process can be tedious, as you must constantly stop and reload the nail gun, adding more time to your roofing project. They are easy to install and are unique in their work and functions. Roofing felt on high-traffic roofs, for example, must be able to stand up to a lot of wear and tear. HousingHow Roofing Roofing Felt Nails Or 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. Be sure the tar paper lies in flat strips that are absolutely smooth. Felt nails are usually made from galvanized steel, which is corrosion-resistant. Starting at the eave, a 19-inch (483 mm) strip of underlayment shall be applied parallel with the eave and fastened sufficiently in place. Since retiring he has written freelance stories and a weekly computer security column. Whatever the cause, its important to fix any nail pops in a roof to prevent damage. 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. 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. roofing company near me. Eugene has been a DIY enthusiast for most of his life and loves being creative while inspiring creativity in others. For most homeowners, aesthetics are essential when choosing a fastening system. Start at the lower edge of the roof, nailing the batten into place at the centre of the rafter. There are certain qualities that roofing felt underlayment must possess. 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. Plus, they may have been otherwise damaged. A staple gun is convenient because it is less bulky and can shoot a lot of staples in a short period. Using roofing nails and roofing staples are common methods. Professional Professional Tools & Support. However, the size differs depending on the application and the local building codes. An excerpt of Table R803.2.3.1 is shown below. As always, your comments and suggestions are appreciated. Avoid using cement on the roofing felt, especially if you plan to re-shingle the roof that day. Exposed nails are those with visible nail heads. Where a roll ends and a new one is begun, the two rolls should be overlapped by four inches. The roof decking should be completely clean and dry. Cut it at the opposite gable edge, and roll out and staple the next course with the desired overlap. Call the team on 01752 692760 or use the . To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. To determine how much felt is required for a roof, find the area of the roof deck to be covered. It starts with installing solid decking, usually plywood or oriented strand board, but that is not waterproof. "World." 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. 1 8d nail i like ring shank will help with a nail pop later 2 roof felt staples or plastic cap nails and rolled roofing aluminum 1 1/4 roof nails. Thats a bad idea. IKO assumes no responsibility for errors that may appear on this website. Repeat as necessary. Its not wise to attempt to reuse them, as they may cause problems on the new roof. 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. Corrosion is always a concern with any metal roofing fastener. Nails should have a minimum, nominal shank diameter of 11- or 12-gauge, and a minimum head diameter of three-eighths of an inch. Staples also have lower holding strength when compared to nails. Even if it is imperceptible to you, water will find it. They install it by tacking one end, rolling it out, and centering it on the ridge. Length: 1" - 3". 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. Uneven strips and wrinkles can allow dust, moisture and mold to develop. He is passionately interested in home improvement, renovation and woodworking. If you use the same shingle and add the nail back in a different spot, youre leaving behind a hole where the nail once was. A larger-size head might increase the risk of exposing part of the nail head in standard nailing locations on the shingle. According to BS 5534, the nails used to fix battens to rafters should usually have a diameter of at least 3.35mm. 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. 30-pound roofing felt costs more, but also offers more protection. Though they vary greatly in material, size and type, all roofing nails share one helpful characteristic: a diamondshaped point. These have large plastic caps for heads, which help prevent water intrusion. The most common width is 36", although they are sometimes available in other sizes. 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. Due to these, Read More Plywood Under Deck Boards! Check the requirements for the roofing material that will go over the felt. In addition to these, nail felts are made from steel and used only to secure the roofing felt underlayment. Before securing the end of a row, take time to walk the row, smoothing out any rough spots and matching up the snapped chalk lines. On the other hand, Roof nails have a more substantial and extended holding strength. Fasteners should be long enough to penetrate at least 3/4" (19 mm) into wood decks or just . This should be laid before the first felt is applied. Nails that didnt fully penetrate the sheathing may work their way up over time. Due to the low slope, the felt needs to be doubled. Secure the shingles with the roofing nails. When protected by well-maintained shingles, the underlay will last between 20 and 30-years, or as long as the asphalt shingles. . That depends on the exposure and coverage of your shingles. Rolled roofing is easy to obtain and can be found at all home improvement stores. They are waterproof or water-resistant and provide additional protection and a barrier against moisture penetration. Add 10% to the shingle estimate to account for waste. I hope you found the guide informative and have a better understanding of how to install roofing underlayment. There should be no wrinkles or other spots that could catch moisture and cause problems. Nail every 8 to 12 and about 1-1/2 in from the outer face of the drip edge. Felt nails have a more secure grip on the paper backing of the roll. Directly answering if you can use staples for roofing felt depends on your local building authority and fire codes. The rolls are typically either 50 or 100 feet long. 1 Use a sharp knife to trim that shingle to within about 18 in. Haring holds a Bachelor of Journalism from the University of Missouri. There are two ways to measure the size of a roofing nail diameter and length. About Us | Contact Us | Privacy Policy | Home. This article will tell you how to install, Read More Roof Sheathing Horizontal Or Vertical (Must Read)Continue, Its one thing to decide on anchoring Newel posts to the foot of your stairs and another to know the right distance, Read More This is How Far Apart Should Newel Posts Be!Continue, Plywood is a type of wood made from several stacks of other woods. 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. Staples can be used for tacking it down, but not recommended to hold. 316 nails have elements of nickel, polymer and chromium . 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. If you are on a budget or are looking for a fastening system that is easier to install, staples may be the right choice. By using this website you accept our use of cookies and the. Measure the length from edge to edge and the eave to ridge, and multiply the values for the area of half the roof. Head diameter: 0.55" - 0.79". (Explained), Uneven Transition Between Cement Board And Drywall, Drywall Anchor Keeps Breaking (Causes & Fixes). There are applications where felt is necessary and others where it is not. Here is what a roof certification letter encompasses. The kind of nails youll use for your roofing felt will depend on the project youre working on. Because they are less secure than nails, staples are more likely to lose over time. Rolled roofing (or roll roofing)also known as MSRcomes in rolls of 100 square feet. 320 nails will be needed to install a square of standard 3-tab shingles, assuming four nails per shingle and 80 shingles per square. Never mount the felt paper on wet sheathing. On the other hand, staples are larger and more visible. The overhang to the next strip should be 3/8 inch. It helps protect the sheathing and the shingles and commonly has parallel lines printed on it that make shingle placement easier. Once you understand what it does, and you know which one you need, you are ready to lay the underlayment for your roof. (Must Read This). Rolled Roofing Basics. Ultimately, it is best to refer to your building codes and roofing manufacturer for more specific guidance. The most common shingle roofing nail size is 3/8 inch diameter with a 1-1/2 or 2-inch length. Continue along the roof to the other end and trim the felt flush at the end with a utility knife. 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. As a bonus, roofing staplers are easy to handle and do not require many repairs. Synthetic Roofing Felt, do not use nails or staples without caps. The actual process of putting down the underlayment will be one of the fastest parts of the entire roofing process. An 8d nail, for example, cost 8 pennies for 100. However, you may need to replace staples more often than felt nails. Roofing felt nails are made of galvanized steel or aluminum, which resists corrosion better than standard steel staples. 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. The hotdipped method results in a thicker layer of zinc that lasts longer, so they are preferred. This is a fabric impregnated with asphalt to form a moisture barrier. For steel, this means stainless steel or galvanized steel. 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. To calculate the slope or grade of your roof, youll need to measure the rise and run of your roof. The roofing nails outweigh the roofing staples durability, holding power, installation, extended use, and compliance with local building authority codes. If you need to install new roof decking or OSB, youll need to nail it to the roof truss. Pull the felt tight so that it lies flat and straight. Visit the officia. This article will explore the pros and cons of each technique to help you make an informed decision for your next roofing project. Use a utility knife or hook-bladed knife to cut the felt. 2004-2023 IKO Industries Ltd., IKO Industries, Inc., and their affiliated and related entities. Most building codes regulate that at least a 12 gauge shank with a diameter of 3/8 head be used. 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. They are also available in both hand-drive and pneumatic versions. Recently, things have changed as staples are no longer fancied or used as roofing felt underlayment. Divide the total footage by 100 to determine the number of "squares" in the roof. The angled corner should be flush to the facia while the outer edge of the kick-out stands out between 1/4 and 1/2 to keep runoff away from the structure and into the gutter. The standard size for roofing felt paper is categorized into four. 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. Drip edges on the eaves, any valley liners and all flashing should be installed before the tar paper is laid. In addition, the manufacturer's instructions should indicate which side of the roofing felt goes down if that matters for the specific product. In fact, in some coast regions, the building codes require the entire nail to be corrosion-resistant, not just the outer surface. You can get away with using regular nails if working on a smaller project, such as repairing a leaky roof. If the guide was helpful, please share it with others. The layers of felt should be overlapped by 1 inch as you work toward the roof ridge. The size and complexity of the roof decking affect how long the task will take, but regardless of size, most felt installs are similar. Also, you can use an aluminum or copper nail, depending on your location. The reason they want you to use felt nails is to prevent blow offs if left exposed or high wind areas. The most common include galvanized roofing nails and aluminum roofing nails, but you can also find copper and stainless steel roofing nails. Penetration. Roofing staples have a broad, flat head that helps to keep them in place and prevent them from pulling through the roofing material. These factors above determine if your nail or staple underlayment is good enough to hold your roof. Other Materials (A Beginners Guide) Done. 5. 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. 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. 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. Finished Product We'd love to see how your project to replace roofing felt turned out! Typically 2 to 3 days will be required for this. Chalk lines should be snapped 33 5/8 above the eave line. Synthetic underlayment comes in 10 square rolls, while regular #15 felt comes in 4 square rolls. FREE delivery Tue, Feb 21 on $25 of items . The added depth that roofing nails provide makes them less likely to come loose over time. Like roofing nails, roofing staples are available in various sizes to accommodate different thicknesses of roofing felt. That is why they are used for additional water tightness in extensive wind areas to reduce the chances of wearing and tearing. Both felt nails and staples are great fastening systems for roofing projects. F1667 RSRS-03 (2 " 0.131") nails or ASTM F1667 RSRS-04 (3" 0.120") nails. Mold and mildew will result and you could wind up having to rip off the roof and install a new one. Your area can also affect the number of nails needed for your roofing project. 2 1 Overlap the corner by enough to trim the edge of the end shingle properly. Note the differences in the specification and length of the fasteners as well as the nail/staple patterns. This means they may lose over time, especially in high winds or severe weather conditions. 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. Roofing felt nails or staples in time past was quite challenging to distinguish which of the two roofing options is better clearly. This means they will last longer and not rust as easily as staples. (Follow Correct Way), What Does A Roof Certification Cover? It is represented by the letter d. Here is a handy chart to help you find the right size of roofing nails if they are only listed in penny length. Roofers tend to use the roofing nails they already have on hand to install flashing. This 400g pack of joist hanger nails from Wickes are designed to secure joist hangers in roofing, ceiling, flooring and decking work. After this, lines should be snapped every 34 as you move up the roof. In addition, both require similar tools for installation. 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. When preparing to shingle or reshingle a roof, laying roofing felt offers an extra barrier against moisture. Roll the first large piece of felt over one side of the roof, allowing the excess to overhang. Tack the gable edge and tack the bottom edge and mid-line as you unroll. What Size Roofing Nail Should I Use. However, you may find they are more expensive. The main drawbacks are cost and the need to use capped fasteners. If you live in an area with high humidity, you may need to replace your staples more often. The paper should then be nailed in or stapled every three to four inches across. This makes them more likely to rust and break over time. Your attic needs to breathe. The cost of your roofing nails will depend on a few factors, including material, type and length. Start at one of the upper corners of the felt and continue along the perimeter. On shallow sloped roof, we would suggest the overlap is increased to 75mm. This is because staples are more likely to rust and break over time. 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. Use with Dewalt DWTTH700 series, Stanley TRA700 series, or Arrow T-50 5/16, 3/8, or 1/2 staples. The puncture must be complete so that the whole diamond tip is past the wood. Each higher number in the penny system represents a 1/4-inch length increase, up to a 12d nail (3 1/4 inches long). 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. Common nails, or even wood screws, may be acceptable nails for OSB roof sheathing. felt application we use plastic cap nails with the Bostitch cap nailer. Easier roll-out with less sticking. When you get to an end shingle in a course, nail it in place so its edge overhangs the corner. Account for waste. Sheradised Square Twist Nails are invalueable when working with timber construction. For all Owens Corning shingles, roofing nails should penetrate into the wood deck by a . A ring shank nail is also called an annular roofing nail or corrugated roofing nail. If youre using typical architectural shingles and 3/8-inch-thick sheathing, youll need 1inch nails. While this may not be a concern for some homeowners, others may find that staples are not as aesthetically pleasing as nails. Multiply the width by the height for the square footage of each section, then add the . 2. Installing roof felt is a two-person job. Sheathing that gets wet before the roofing material can go on should be allowed to dry thoroughly before continuing. As a result, most local building authorities have banned staples for roofing. The quality of the material used is also an important consideration. Tar paper is infused with tar, and roofing felt with a bituminous substance granted, a semantic difference as both are petroleum-based products. At intermediate supports, fasten panels 12 inches on center. What Size Staples Required for 30lb Felt? Unlike selfadhering underlayments, such as ice and water protector, felt underlayment needs to be fastened in place with nails. Within the last foot or so, roll back onto the course and push the course down at the edge to create a crease, and cut it with a utility knife or hook knife. Steel makes for strong nails. Dont confuse these cap nails with gasket roofing nails. -A 3/12 roof measuring 20x48 per half is 960 for a total area of 1920sqft. Most domestic shed roofs will require at most two runs of felt before they come to the ridge. Roll out about 10 feet of felt and fasten with staples or roofing nails with plastic washer heads. The length of nail you use depends on the thickness of the sheathing and shingles you use. Replace any damaged decking and sweep the deck clean of sawdust and debris. Tack it in place at the corner, with the end flush with the end of the roof and the bottom edge of the roll right along the bottom of the roof deck, over the drip edge. Nails and staples have several significant differences. Installing roofing felt is easy to install and is the first step to protecting your roof decking and home. High wind areas and other types of shingles may need more. This is essential in windy conditions or in areas that experience severe weather conditions. Roofing nails should be 1-1/4 to 2 inches long to ensure that it sufficiently penetrates and embeds in the roof sheathing. Sometimes homeowners put in new nails when trying to attach something on the roof. Aug 15, 2010. Both felt nails and staples require minimal maintenance. Corrosion resistant to ensure they last over time, and for use where strong joints are required. It is versatile, strong, and affordable. Are you looking out for ways of preserving your roof rafters to enable them to stand the test of time? The felt should be trimmed flush with the edge or 1/2 past to wrap the edge when the drip edge is placed. Roll out the first course, align it, tack it down with galvanized nails or staples, and cut it to size. However, aluminum nails are still used on asphalt shingle roofing by some roofers. Shank type: smooth, ring, screw. Fortunately, galvanized roofing nails and steel nails pass the building code test. A roof felt is a moisture barrier made of natural and synthetic materials. For slopes between 2/12 and 4/12, double the resulting area value and then divide by the area a roll of felt covers. Of course, as your nails will be on the exterior of a home, they must have rust and corrosion protection. of the shingle tabs where the bottom edge of the tab meets the top of the cutout. While it is common to find nails with a shank diameter of 13 inches, they cannot be smaller than 12 gauge (2.67mm) and still comply with the IBC. Galvanized nails are also available in a variety of lengths and sizes. As a result, they are less susceptible to jamming and easily reload. The RSRS designation indicates the fastener is a ring shank roof sheathing nail. Nails will also be required for any roofing project. Use the nails with or without plastic caps. Nail metal drip-edge flashing, which bends over the roof and down the edge of the facing board, on all roof edges. Staples are also not as durable as nails and are more likely to come loose in high winds. This is because they are faster and easier to install than nails. Multiplied by 1.10 is 2112sqft. This makes it 320 nails per square foot. 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. Depending on your local building authority, you can use staples for roofing felt or, in other words, as roofing felt underlayment. The T-50s are compatible with most brands of staple guns or hammers. You can also install asphalt shingle roofs using either a staple or nailer. Not only is it tedious to yank these nails out, but their zinc coating will also be worn. Staples are typically made from aluminum or other metals that are not as durable. It is available in rolls of 15 and 30-pounds per hundred square feet. Overlapping sheet, shed felt adhesive sticks, felt to felt. For best performance, you should use ring roofing nails that are made of hotdipped galvanized steel. 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. Staples also provide great finishing outlooks on your roofing or other building projects. In addition, staples create a neater finished look. In high-wind areas, more fasteners may be required. It takes 3 bundles to cover a square if you use 3-tab shingles, the most common type. The most common include galvanized roofing nails and aluminum roofing nails, but you can also find copper and stainless steel roofing nails. Pack Size. Below we will explore an in-depth analysis of the two fastening systems to help you select the right one for your needs. Overlaps will typically be minimum 50mm and will depend upon the slope of the roof. You may be tempted to reuse these to save on costs. The answer depends on the thickness of the plywood and the building code. When the shingles are installed the felt is not going anywhere. It is important to note that local building and fire codes may require cap nails instead of staples, so check the fine print. Roofing felt is commonly used between roof deck sheathing and roof shingles. Leave the top portion of the paper loose. 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. Used for fastening roofing felt for waterproofing or roofing tiles to metal. Well walk you through the types, sizes and materials you may choose from when picking a roofing nail. This goes a long way to bring to light how durable nail roofs are. Fold the top part of the extended metal down so it is covered by the rake drip edge. Remember to follow appropriate safety practices when working from ladders or on roofs. 1 (19) 240 (1) 250 . 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. The 30-pound roll is 36 wide by 72 long and covers 216sqft. Installing the roofing felt does take care, but can go very quickly. 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. [4] 4. Perhaps they were underdriven in the first place. Read More What Does A Roof Certification Cover? Ask your dealer for the correct amount of nails for your size roof, in the length you specify. Then they nail it along the edge every 6 to 10 inches. Double that value and you have the full roof area. You can find each of the three types of roofing nails in the three materials we list below. Felt is typically 3 feet wide, so that means a roll is approximately 144 feet long.