what size nails for roof felt what size nails for roof felt

Felt is typically 3 feet wide, so that means a roll is approximately 144 feet long. Consider other underlayment options as needed, such as rubber or tar products. Heavyweight asphalt shingles commonly have a longer service life. This is because the nails are small and blend in with the paper backing of the roll. Do the other side of the roof the same way, also with an overlap at the peak. As always, your comments and suggestions are appreciated. These applications are ideal for flat roofs or protective surfaces under roof-level decks. For more tips on roof installation and tools, read our article about choosing between a nail gun and a roofing hammer. Galvanized nails are also available in a variety of lengths and sizes. The 30-pound roll is 36 wide by 72 long and covers 216sqft. Overlapping roofing felt protects the roof deck from seepage, wind-driven precipitation, and ice-dam back-up. roofing company near me. If there are hips, valleys, or dormers, increase the total by 10 to 25%. At the gable ends trim flush to the decking or leave 1/2 to 1 to wrap the edge when installing the drip edge. 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. Most professional roofers use staples instead of nails when installing roof felt on larger roofs. This makes it 320 nails per square foot. In addition, the manufacturer's instructions should indicate which side of the roofing felt goes down if that matters for the specific product. The gasket is rubber, not plastic. Felt nails are more expensive than staples. It has a heavy-duty, anti-jam stapling mechanism and magazine that loads from the bottom of the handle. A ring shank nail is also called an annular roofing nail or corrugated roofing nail. Measure the size of your roof in square feet. 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. Please refer to our Legal Notices for U.S.A. or our Legal Notices for Canada. For budget-conscious homeowners, roofing staples are the more affordable option. The overhang to the next strip should be 3/8 inch. The next step is to cap the ridge. This goes a long way to bring to light how durable nail roofs are. Multiply the width by the height for the square footage of each section, then add the . Nail metal drip-edge flashing, which bends over the roof and down the edge of the facing board, on all roof edges. Roofing nails are cleverly designed to help you do a better job. In addition, both require similar tools for installation. This makes them more likely to rust and break over time. Common nails, or even wood screws, may be acceptable nails for OSB roof sheathing. Prevent Ice Dams 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. It is important to note that the nail and staple roofing felt have these outstanding qualities. Professional roofers look for the correct length because they want the nails to puncture the decking entirely. Dry sheathing and felt paper also help ensure a watertight roof in severe climates. Design depends on type of metal roof: exposed or hidden fasteners; board and batten (pan and ridge) panels; shake and shingle panels; panel or tile system; standing seam; etc. When nailing shingles, proper penetration into the roof deck is essential to ensure the nail and shingle remain secure. I will also need to overlap the felt, how much overlap should I use? Some materials require heavier felt paper. Another benefit of roofing staples is that they cause less damage to shingles than nails. Fasteners should be about 8 apart in the bottom 3/4 of the paper. $7.18 $ 7. On the other hand, Roof nails have a more substantial and extended holding strength. This can be done prior to tacking or afterward. Valley, ridges and hips should have a 6 inch overlap of paper. The downside of roof nails is that they are bulkier and prone to multiple jams while working with them. By using this website you accept our use of cookies and the. Installing roof felt is a two-person job. The sooner it is protected by shingles, the better. Roofing felt is made of natural or synthetic materials such as wood cellulose, recycled cloth, fiberglass, or polyester. Pull the felt tight so that it lies flat and straight. A 2d nail is 1 inch long, for example, while a 16d nail is 3 1/2 inches long. Plus, they may have been otherwise damaged. Square cap nails are typically used for fastening felt underlayment and not asphalt shingles. Roll the first large piece of felt over one side of the roof, allowing the excess to overhang. 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. If you are on a budget or are looking for a fastening system that is easier to install, staples may be the right choice. These thick layers of roofing felt are installed by heating the back of the felt with a butane torch and then carefully applying it to the roof. This website uses cookies to provide necessary functionality and to improve your online experience. The synthetic underlay has greater water-resistance and the no-slip coating offers better traction for installation safety. As a result, they are less susceptible to jamming and easily reload. It is required to block any rain that gets under or between shingles from penetrating into the wood decking. 1. Unroll the felt on the roof deck or ground, measure the width, and cut. Tar paper is infused with tar, and roofing felt with a bituminous substance granted, a semantic difference as both are petroleum-based products. This article will explore the pros and cons of each technique to help you make an informed decision for your next roofing project. And while they may seem pretty straightforward, there are various factors to consider when choosing the suitable roofing materials and methods for your project. 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. You can learn more about the sizes of staples here. The roofing felt should be applied in layers that overlap. Finished Product We'd love to see how your project to replace roofing felt turned out! in normal wind zones. The NRCA (National Roofing Contractors Association) recommends a double layer of 15-pound underlayment for roofs between 3/12 and 4/12, and a single layer for decks greater than 4/12. Roll out the rest of the course, tacking along the center as you go. 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. Roofers seek to use just the right length of nail so that the decking (or OSB) is completely punctured by the nail. Haring holds a Bachelor of Journalism from the University of Missouri. The RSRS designation indicates the fastener is a ring shank roof sheathing nail. Use galvanised clout nails to nail the first sheet of felt onto the roof. 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 . What Size Staples Required for 30lb Felt? You should use 12-gauge or thicker. The most common shingle roofing nail size is 3/8 inch diameter with a 1-1/2 or 2-inch length. Product Specs Type: Synthetic Size: 250 feet long by 4 feet wide Fire rating: None. However, on low-slope roof applications from 2:12 to 4:12, roofers may use . An excerpt of Table R803.2.3.1 is shown below. What Size Roofing Nail Should I Use. Most building codes regulate that at least a 12 gauge shank with a diameter of 3/8 head be used. For example, if you remove the nail and drive it back into the same spot, your aim wont be perfectly accurate. There are two methods of galvanizing nails: hotdipped and electrogalvanized. #30 Asphalt Saturated Underlayment Benefits. Although this is admittedly a matter of opinion, many people feel that nails provide a neater appearance than staples. Exposed nails are those with visible nail heads. Roofing nails with gaskets are intended for metal roofs. Each run of shed felt should overlap the next by at least 7.5cm. Measure the length from edge to edge and the eave to ridge, and multiply the values for the area of half the roof. Package The puncture must be complete so that the whole diamond tip is past the wood. Both felt nails and staples require minimal maintenance. They require high skills and concentration when used, and any mistake or inaccurate placement can cause severe damage to the entire roof. 3. There are various roofing nails available in different materials. 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. Are you looking out for ways of preserving your roof rafters to enable them to stand the test of time? The head diameter is typically a standard 3/8-inch for all roofing nails. There are certain qualities that roofing felt underlayment must possess. of the shingle tabs where the bottom edge of the tab meets the top of the cutout. They are the most basic type of roofing nail and cheaper than the other two options. 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. Roofing nails are the most common type of fastener used to attach asphalt shingles to the roof deck. Construction stapler or plastic washer nails. 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. Shank type: smooth, ring, screw. 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. We'd recommend nailing from the centre of the edge of the sheet and working outwards. Use the nails with or without plastic caps. Roofing felt nails or staples are effective roofing methods or options that can go well with very soft materials. Roofing nails that are 11- or 10-gauge are also allowed by most building codes as they are thicker and sturdier. In fact, in some coast regions, the building codes require the entire nail to be corrosion-resistant, not just the outer surface. You can also install asphalt shingle roofs using either a staple or nailer. Estimating your roofing materials is key to your success, so youll want to know how many nails youll use in a square. Roll out the first course, tacking it down as you go. As you work, the paper can be tacked down in the center so it wont blow away. Tags On the flipside, if you rush through the initial steps, the felt installation can be compromised by sloppy oversights such as stray nails. Install the drip edge, so it projects past the ends of the eaves by about 3/4 at the gable or rake end. Step 4 Prepare for the Shingle Installation One of the essential factors is selecting a suitable fastener! That is why they are used for additional water tightness in extensive wind areas to reduce the chances of wearing and tearing. Felt provides a breathable, water-resistant membrane that helps shed moisture that makes it past the shingles. However, aluminum nails are still used on asphalt shingle roofing by some roofers. The roof decking should be completely clean and dry. Measure up the roof and snap chalk lines where the upper edge of each course will go. In most jurisdictions, building codes require using nails for roof shingles. You want roofing nails with plastic washers for roof underlayment. This is How Far Apart Should Newel Posts Be! Check the weather. It helps protect the sheathing and the shingles and commonly has parallel lines printed on it that make shingle placement easier. Wood Shingles (minimum 3/4 " sheathing) Wood Shingles Nail Type Minimum Length 18 Straight Split 3d Box 1-1/4 18 and 24 Handsplit and Resawn 4d Box 1-1/2 Disclaimer The above nail sizes are recommendations only. 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. According to BS 5534, the nails used to fix battens to rafters should usually have a diameter of at least 3.35mm. The overhang to the next strip should be 3/8 inch. These have large plastic caps for heads, which help prevent water intrusion. It is important to note that local building and fire codes may require cap nails instead of staples, so check the fine print. Choosing the suitable fastener for your roof or shingle is dependent on four factors; the type of fastener, correct installation, placement, and holding strength. 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. With higher coverage, youll lay down fewer shingles in a square and therefore use fewer nails. (on center) on both head and end laps. Grip the hammer tightly by the end of the handle and hold your thumb at the top of the shaft. FREE delivery Tue, Feb 21 on $25 of items shipped by . This will help keep any moisture from getting under the felt. The layers of felt should be overlapped by 1 inch as you work toward the roof ridge. However, felt nails edge out staples in terms of cost, hold, durability, and quality. Synthetic Roofing Felt, do not use nails or staples without caps. 2004-2023 IKO Industries Ltd., IKO Industries, Inc., and their affiliated and related entities. When protected by well-maintained shingles, the underlay will last between 20 and 30-years, or as long as the asphalt shingles. 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. Use four roofing nails per shingle, as indicated on package instructions (six nails in high-wind areas). If the guide was helpful, please share it with others. Also note that nails are sold by the pound, and if youre a professional roofer, it may benefit you to buy in bulk in order to reduce costs. In this case, youll want to use roofing nails made of robust materials such as steel or aluminum. Nails and staples are standard roofing underlayment options that you can use on all building products. Sheathing that gets wet before the roofing material can go on should be allowed to dry thoroughly before continuing. The number of nails youll need for your roofing felt will depend on a few factors. 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. Roofing nail lengths are available in one to two inches. Its general knowledge that nail roofing felt, and staples are almost the same and give desired results: securing or holding the roofing felt. However, you may find they are more expensive. 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. For a 30lb felt, you should use T50 staples which generally have inch wide crowns and a length variation that include , , , and inches. 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. Be sure you to use the correct nail length and place it properly. Nail shank diameter should be at least 11-12 gauge for roofs. 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. Both felt nails and staples are great fastening systems for roofing projects. Head: flat round. 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 are available in lengths ranging from one to two inches. The overlap of 3/8 should be followed consistently for a smooth look once the shingles are installed. Start at the lower gable edge of the roof deck and work upward. This is a fabric impregnated with asphalt to form a moisture barrier. 45.25-in x 53.4-ft 200-sq ft Felt Roof Underlayment Model # XHWTP3224N-015 Find My Store for pricing and availability Installation & Services for You Look to Lowe's for a free consultation and professional installation. Roofing nails should be 1-1/4 to 2 inches long to ensure that it sufficiently penetrates and embeds in the roof sheathing. Installing roofing felt is easy to install and is the first step to protecting your roof decking and home. Installing the roofing felt does take care, but can go very quickly. This is essential in windy conditions or in areas that experience severe weather conditions. Another quality is its ability to withstand intense exposure to the sun over a long period. Highly visible alignment lines. Tack about every 4 on gable edges and 8 or so everywhere else. 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. A nail gun can be used to quickly install some nails to the roofing paper wont slide around. Roll out the first course, align it, tack it down with galvanized nails or staples, and cut it to size. Then they nail it along the edge every 6 to 10 inches. Use a utility knife or hook-bladed knife to cut the felt. Synthetic or non-bitumen underlay has become a popular choice with roofers over the past decade. The cost of your roofing nails will depend on a few factors, including material, type and length. 4.6 out of 5 stars 94. Rolls of felt are 36 wide x 144 long for 15# and 72 long for 30#. The sun makes the felt brittle and more susceptible to tearing, and rain causes it to ripple. Otherwise, all new nails should be inserted so that they are covered by the shingle above them. Each higher number in the penny system represents a 1/4-inch length increase, up to a 12d nail (3 1/4 inches long). Nails can pop above the roof surface for a number of reasons. 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. This is because nails create a stronger bond than staples, making the roof more resistant to high winds and other severe weather conditions. 15-pound roofing felt costs around $20 for just over 420 square feet. For all Owens Corning shingles, roofing nails should penetrate into the wood deck by a . 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. Can Roofing Felt be Glued? Clout nails should be 15mm large head clout nails. The standard size for roofing felt paper is categorized into four. Stainless steel nails are best used for slate and ceramic roofs or asphalt shingle roofs in coastal climates. Leave about 5cm between each nail, and ensure the sheet is pulled tight and sitting in line with the roof. You can adjust the firing depth of nails with an easy depth-setting wheel on the head of the tool, and clear jammed nails with the quick-release compartment aside the . Your attic needs to breathe. Measure the width and height of each section separately. Eugene has been a DIY enthusiast for most of his life and loves being creative while inspiring creativity in others. Even if it is imperceptible to you, water will find it. Roofing nails should be 1-1/4 to 2 inches long to ensure that it sufficiently penetrates and embeds in the roof sheathing. And it has to be through and through, and the diamond tip will go past the wood. 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. Repeat until the roof is covered. The International Building Code requires that roofing nails have a minimum 12-gauge shank and a 3/8-inch diameter head. 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. Shed Roof vs. Gable Roof Comparison Guide. Since retiring he has written freelance stories and a weekly computer security column. That depends on the exposure and coverage of your shingles. Double that value and you have the full roof area. Drip edge flashing has three distinct parts and typically comes in 10 lengths. The lower edge will need to be trimmed to the drip edge. Wood splinters should also be pulled out for a smooth, clean decking surface. Most of the time, staples do not hold down the roofing felt paper or materials well enough in such areas. Once the course of felt is tacked in place aligned to the chalk line, trimmed, and cut to length, go back and add more staples or nails to secure it in place approximately every 4 on gable edges and 8 apart elsewhere. To calculate the slope or grade of your roof, youll need to measure the rise and run of your roof. The steps are pretty much the same whether its a big roof or a small one. [4] 4. 4. Similarly, 19/32 OSB roof sheathing would be 8d common, box or casing nails at 6 on center at the panel edges and 12 on center in the field OR 2 16 gage staples at 4 on center at the panel edges and 8 on center in the field. 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. The drip edge protects the edges of the roof deck and is often installed after the underlay is attached. Some roofing felts are actually glued down. 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. Consult your local building department for specific nailing applications. Ensure theyre long enough to penetrate through the felt and the roof decking. Replace any damaged decking and sweep the deck clean of sawdust and debris. In addition, nails are stable and allow roofers to get precise points when using them. Specification Material: carbon steel, stainless steel, aluminum, copper. (Follow Correct Way)Continue. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. 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. Strips should always lay flat. 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. The standard size for roofing felt paper is categorized into four. This is because the moisture can cause the staples to rust and break down faster. Pack Size. Put fasteners at least every 8 inches; some suppliers recommend staples about every 4 inches. To ensure we feature the products available in your area, please select your country and state/province. Various nail shank types for different requirements. 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. Where the felt isnt long enough to complete a course there should be a minimum of a 3-inch overlap. Your area can also affect the number of nails needed for your roofing project. This should be laid before the first felt is applied. Its not wise to attempt to reuse them, as they may cause problems on the new roof. Other Materials Choosing longer rolls will allow you to cover more roof surface with fewer seams. There will be a tiny gap on one side of the nail or the other. $3.19 $ 3. Begin the next course from the edge just cut, moving up to the next chalk line. Cut it at the opposite gable edge, and roll out and staple the next course with the desired overlap.