what size nails for roof felt
Highly visible alignment lines. Roofing felt is made of natural or synthetic materials such as wood cellulose, recycled cloth, fiberglass, or polyester. 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 If you take the time to properly prepare the roof, then laying the felt will be easy. For irregularly shaped roofs, break it down into smaller rectangles or triangles to calculate the areas. So for the 24 square roof example, you would need 2.4 rolls of synthetic underlayment, or 6 rolls of regular #15 felt. He is passionately interested in home improvement, renovation and woodworking. For slopes greater than 4/12 a single layer of felt is acceptable. If you need to install new roof decking or OSB, youll need to nail it to the roof truss. . Drip edge flashing has three distinct parts and typically comes in 10 lengths. The ridge cap used on this roof . 320 nails will be needed to install a square of standard 3-tab shingles, assuming four nails per shingle and 80 shingles per square. The most common width is 36", although they are sometimes available in other sizes. Common nails, or even wood screws, may be acceptable nails for OSB roof sheathing. Roofing felt on high-traffic roofs, for example, must be able to stand up to a lot of wear and tear. 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. Roofing felt products should not be glued to the decking in lieu of using nails or screws. 2004-2023 IKO Industries Ltd., IKO Industries, Inc., and their affiliated and related entities. A 2d nail is 1 inch long, for example, while a 16d nail is 3 1/2 inches long. What Type of Nails Should be Used with Shingles? By Maria Goudiss. It will protect the roof for about a month without shingles, provided it is fastened properly and it isnt too windy. Perhaps they were underdriven in the first place. Watch our step-by-step video showing how to felt a shed roof, with expert advice and top tips to help you complete the job with confidence. Roofers seek to use just the right length of nail so that the decking (or OSB) is completely punctured by the nail. Most professional roofers use staples instead of nails when installing roof felt on larger roofs. Pack Size. Your attic needs to breathe. 4.6 out of 5 stars 94. This is because the nails are made of a stronger material that can withstand more wear and tear. Overlapping roofing felt protects the roof deck from seepage, wind-driven precipitation, and ice-dam back-up. Your area can also affect the number of nails needed for your roofing project. A larger-size head might increase the risk of exposing part of the nail head in standard nailing locations on the shingle. Depending on your local building authority, you can use staples for roofing felt or, in other words, as roofing felt underlayment. Grip the hammer tightly by the end of the handle and hold your thumb at the top of the shaft. If you live in an area with high humidity, you may need to replace your staples more often. 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. Most domestic shed roofs will require at most two runs of felt before they come to the ridge. Therefore, you have to plan out your sheathing thickness, shingle thickness and nail length carefully. Roll the first large piece of felt over one side of the roof, allowing the excess to overhang. 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. Cost is an essential consideration for home improvement projects. This is important since asphalt is a relatively soft and flexible material. When you get to an end shingle in a course, nail it in place so its edge overhangs the corner. Install the drip edge, so it projects past the ends of the eaves by about 3/4 at the gable or rake end. However, on low-slope roof applications from 2:12 to 4:12, roofers may use . "World." Aluminum nails are more prone to corrosion, as well as chemical and salt damage, than steel nails. Repeat until the roof is covered. 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. Roofing felt nails are made of galvanized steel or aluminum, which resists corrosion better than standard steel staples. Synthetic Roofing Felt, do not use nails or staples without caps. You want roofing nails with plastic washers for roof underlayment. 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 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. Recently, things have changed as staples are no longer fancied or used as roofing felt underlayment. (Follow Correct Way)Continue. Nail the felt in using 0.59 inch (15 mm) galvanized clout nails. Check the weather. Here is what a roof certification letter encompasses. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. Ideally, the roof should be done when there is a forecast for several days without a lot of rain. A staple gun is convenient because it is less bulky and can shoot a lot of staples in a short period. 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. Here are some reasons why felt paper is necessary: There are three main types of underlayment applied to roof decks prior to asphalt shingles and other roof coverings. This means they will last longer and not rust as easily as staples. 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. Measure the size of your roof in square feet. Can Roofing Felt be Glued? Roll out the first course, align it, tack it down with galvanized nails or staples, and cut it to size. of the shingle tabs where the bottom edge of the tab meets the top of the cutout. So in terms of quantity, a roofing roll is about the size of one composite . In your building codes and international building codes, nails may be referenced as fasteners along with staples and screws. For steel, this means stainless steel or galvanized steel. Work up the roof to the peak and fold felt over the top, overlapping at least 3 inches and fasten it on both sides. You cannot use screws for roofing shingles, only roofing nails are approved fasteners. To calculate the slope or grade of your roof, youll need to measure the rise and run of your roof. This 400g pack of joist hanger nails from Wickes are designed to secure joist hangers in roofing, ceiling, flooring and decking work. The added depth that roofing felt nails provide makes them slower to install. They cost less per square foot to install than nails, making them a good choice for those working with limited funds. Once you understand what it does, and you know which one you need, you are ready to lay the underlayment for your roof. Place your nails in a plastic cap or one with nails. I will also need to overlap the felt, how much overlap should I use? Square cap nails may have a smooth or coiled shank. Professional Professional Tools & Support. That depends on the exposure and coverage of your shingles. The Hillman Group 42041 Galvanized Roofing Nails, 1-Inch, 100-Pack. Fold the top part of the extended metal down so it is covered by the rake drip edge. This makes them more likely to rust and break over time. Roofing felt nails or staples are effective roofing methods or options that can go well with very soft materials. Most roofers use four nails per shingle and five nails for each roofing felt square. Because they are less secure than nails, staples are more likely to lose over time. The overhang to the next strip should be 3/8 inch. Materials used to make the natural and synthetic underlayment include; wood cellulose, polyester, and fiberglass. Galvanization adds a layer of zinc onto the steel that significantly inhibits rust and corrosion. Repeat as necessary. (Follow Correct Way), What Does A Roof Certification Cover? The information on this website is subject to change without notice. The overlap of 3/8 should be followed consistently for a smooth look once the shingles are installed. The average 3-tab shingle needs four nails per shingle. 2. If youre using typical architectural shingles and 3/8-inch-thick sheathing, youll need 1inch nails. Step 11 Repair any areas inside the house that were damaged by the leak, and enjoy your dry house! They are easy to install and are unique in their work and functions. The roofing nailers are designed for driving 12-gauge nails up to a depth of 1 inch whereas the framing nailer shoots large 16d nails to a depth of 3 inches. Even if it is imperceptible to you, water will find it. Use only plastic cap, corrosion-resistant nails or staples with plastic caps. Measure the width and height of each section separately. Start at one of the upper corners of the felt and continue along the perimeter. 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. Nails will also be required for any roofing project. However, you may find they are more expensive. Nails for roofing felt are also more expensive than typical nails. Roofing nails that are 11- or 10-gauge are also allowed by most building codes as they are thicker and sturdier. It is versatile, strong, and affordable. Nails can pop above the roof surface for a number of reasons. However, the process can be tedious, as you must constantly stop and reload the nail gun, adding more time to your roofing project. The paper should then be nailed in or stapled every three to four inches across. Length: 1" - 3". The steps are pretty much the same whether its a big roof or a small one. The 30-pound roll is 36 wide by 72 long and covers 216sqft. IKO strives to accurately reproduce the screen images of the shingle swatches and house photos shown. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. 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.) Ultimately, it is best to refer to your building codes and roofing manufacturer for more specific guidance. Roofing nails are the most common type of fastener used to attach asphalt shingles to the roof deck. For a 30lb felt, you should use T50 staples which generally have inch wide crowns and a length variation that include , , , and inches. You may want to wear work gloves to avoid injuring your hand or developing blisters. -A 3/12 roof measuring 20x48 per half is 960 for a total area of 1920sqft. For asphalt shingle nails, a galvanized roofing nail with at least 12 gauge shank and head diameter 3/8 inch, while the stapler requires a 16 gauge staple gun. Its general knowledge that nail roofing felt, and staples are almost the same and give desired results: securing or holding the roofing felt. When preparing to shingle or reshingle a roof, laying roofing felt offers an extra barrier against moisture. Used for fastening roofing felt for waterproofing or roofing tiles to metal. A greater overlap provides more protection but may cause problems with spacing and fastening upper courses relative to sheathing seams. For low slope roofs mark every 17 and snap a chalk line from gable to gable. 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. Some suggest you fill this hole with roofing cement, but this repair option must be done carefully to maintain the roofs water-shedding performance. This can cause your roofing material to lift, making it more susceptible to damage in a storm. IKO assumes no responsibility for errors that may appear on this website. Staples are used with a variety of roofing materials. $7.18 $ 7. 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. NOTE: Not all products featured will be available in your area. Continue along the roof to the other end and trim the felt flush at the end with a utility knife. A nail gun can be used to quickly install some nails to the roofing paper wont slide around. Roof Felt Underlayment to Protect Your Home From the Elements Once this course is laid, you can begin snapping horizontal chalk lines up the roof to ensure straight rows. As always, your comments and suggestions are appreciated. Double that value and you have the full roof area. Although roofing staples are designed to be strong, they are not as strong as nails. 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. Drip edges on the eaves, any valley liners and all flashing should be installed before the tar paper is laid. Start at the lower gable edge of the roof deck and work upward. 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. 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. Limited time deal. Corrosion is always a concern with any metal roofing fastener. Specification Material: carbon steel, stainless steel, aluminum, copper. Roof felt is often called tar paper and is commonly used in similar ways, however, they are different. Be sure you to use the correct nail length and place it properly. Start the roof felt at one bottom corner of the roof. This is because each nail needs to be driven individually into the roof. If you are not sure what size of nails to use for your project, you can always consult the building department in . To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. They may or not allow staple roofing felt. If you are on a budget or are looking for a fastening system that is easier to install, staples may be the right choice. -A 5/12 roof deck 4x 8 is 32sqft x 1.10 = 35.2sqft. Most of the time, staples do not hold down the roofing felt paper or materials well enough in such areas. Sometimes homeowners put in new nails when trying to attach something on the roof. The differences between the stable and nails are visible. The next step is to cap the ridge. Typically 2 to 3 days will be required for this. Some roofing felts are actually glued down. Add more felt if required In terms of durability, felt nails are more durable than staples. It takes 3 bundles to cover a square if you use 3-tab shingles, the most common type. Shank type: smooth, ring, screw. 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. Installing roofing felt is the first step to shingling the roof deck and is an additional layer of protection for the roof. If you were considering using screws for their extra security, consider ring shank nails instead. in normal wind zones. Choosing the right roofing nails and driving them properly is essential for getting the best performance out of your roof. 1 (19) 240 (1) 250 . Eugene has been a DIY enthusiast for most of his life and loves being creative while inspiring creativity in others. Many metal roofing dealers specify minimum of 7/16" sheathing. A larger-size head might increase the risk of exposing part of the nail head in standard nailing locations on the shingle. Not felt to timber. 1. Using roofing nails and roofing staples are common methods. Directly answering if you can use staples for roofing felt depends on your local building authority and fire codes. The quality of the material used is also an important consideration. You can learn more about the sizes of staples here. Fortunately, galvanized roofing nails and steel nails pass the building code test. Even though nails also hold roofing materials in place, staples are often preferred because they have a solid visible grip. Roofing staples are a fastener to secure roofing felt or tar paper to the roof deck. However, both fastening systems are durable and will last for many years with proper care and maintenance. Roofing nails are available in lengths ranging from one to two inches. Measure the deck from the bottom to top for the number of courses of paper. It also helps the roof sheathing by preventing leaks and extending its lifespan. Felt nails are less visible than staples. An 8d nail, for example, cost 8 pennies for 100. Note the differences in the specification and length of the fasteners as well as the nail/staple patterns. 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 standard size for roofing felt paper is categorized into four. Running a flat bottom shovel along the roof decking will help you find any stray nails that should be pulled. Roof nails go deep into the roofing shingles and the roof decking, providing a firmer grip and preventing the asphalt from sliding around. Any stray roof tacks, pieces of old felt, or general debris should be cleared off. And it has to be through and through, and the diamond tip will go past the wood. Rolls of felt are 36 wide x 144 long for 15# and 72 long for 30#. Step 4 Prepare for the Shingle Installation They are waterproof or water-resistant and provide additional protection and a barrier against moisture penetration. Is it necessary to use adhesive? The synthetic underlay has greater water-resistance and the no-slip coating offers better traction for installation safety. Mark every 34 or 33 and snap a line across the deck for 2 or 3 overlaps on slopes greater than 4/12. However, this is a detriment to the roofs performance. The layers of felt should be overlapped by 1 inch as you work toward the roof ridge. Read More What Does A Roof Certification Cover? Fasten the field area in the middle of the roll a minimum of 24 O.C. This provides short-term protection and serves as a waterproof so that water or moisture does not move below the tiles or shingles. Nails and staples have several significant differences. In fact, in some coast regions, the building codes require the entire nail to be corrosion-resistant, not just the outer surface. Point: diamond or blunt. Begin the next course from the edge just cut, moving up to the next chalk line. Roofing and reroofing are two of the most common home improvement projects. It is important to note that the nail and staple roofing felt have these outstanding qualities. How Long Are Roof Nails. We have the following; For galvanized roofing shingles, they make use of a 16 gauge shank. Roofing felt is a type of underlayment that professionals install beneath a roofs shingles. Divided by 432 for 15-pound felt or 216 for 30-pound felt and round up for full rolls for this roof theyll be lots of leftover from one roll for the next project. The three types are: Asphalt, tar, or bitumen-saturated felt, Synthetic or non-bitumen underlay, and Rubberized asphalt underlay. This is because a roofing nail has high holding power, unlike its counterpart. But, as with so many other projects, the key lies in the prep work. As a bonus, roofing staplers are easy to handle and do not require many repairs. 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. This moderately-priced roofing nailer holds up to 120 nails per load and allows a variety of 11-gauge (.12 inches) nail sizes ranging from 3/4 of an inch to 1-3/4 of an inch. Both felt nails and staples are great fastening systems for roofing projects. Specifically, youll need roofing cap nails. Tack the gable edge and tack the bottom edge and mid-line as you unroll. Remember to follow appropriate safety practices when working from ladders or on roofs. If youre estimating the cost of your nails, its best to head into your supplier and compare their prices yourself, as costs vary by location too. 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. 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. Another benefit of roofing staples is that they cause less damage to shingles than nails. 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. The lower the gauge number, the thicker the nail. Never mount the felt paper on wet sheathing. Make sure to expose 5 in. This is How Far Apart Should Newel Posts Be! For example, you will need a roofing air nailer for felt nails and a roofing staple gun for staples. However, remember that you get what you pay forthe added durability of nails may mean they last longer and save you money in the long run. Well explain how to install the roof felt and drip edge, and make some tool and material recommendations. 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. The roof decking should be completely clean and dry. Unroll the start of the first course, align with the edges and chalk line, and tack down the gable edge. Thats a bad idea. Stainless steel nails are best used for slate and ceramic roofs or asphalt shingle roofs in coastal climates. Clout nails should be 15mm large head clout nails. Felt nails have a higher holding power compared to staples. Replace any damaged decking and sweep the deck clean of sawdust and debris. Screws leave small gaps in the material they are driven into, and this may be enough to allow for a leak. Nail metal drip-edge flashing, which bends over the roof and down the edge of the facing board, on all roof edges. Its always better to have too many nails to nail shingles than not enough. Give it the essential venting. FREE delivery Tue, Feb 21 on $25 of items shipped by . Roofing Felt that exceeds the scuffed area by 6" (152 mm) Square cap nails are typically used for fastening felt underlayment and not asphalt shingles. The numbers refer to the actual weight of the felt. It has a heavy-duty, anti-jam stapling mechanism and magazine that loads from the bottom of the handle. Repeat until the roof is covered. 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. As you work, the paper can be tacked down in the center so it wont blow away. It must be covered with waterproofing membrane, usually "roof felt," also called tar paper. Aug 15, 2010. 316 nails have elements of nickel, polymer and chromium . The roofing felt should be applied in layers that overlap. Professional roofers look for the correct length because they want the nails to puncture the decking entirely. The sooner it is protected by shingles, the better. This is because the staples are smaller and have a smaller head, which means they pierce the shingle less. Like roofing nails, roofing staples are available in various sizes to accommodate different thicknesses of roofing felt. While all tar paper comes in rolls, you do have some control of what size roll you will purchase. Uneven strips and wrinkles can allow dust, moisture and mold to develop. Chalk lines should be snapped 33 5/8 above the eave line. Do not simply hammer the nail down, renail it in the same spot, or use the same shingle. Where a roll ends and a new one is begun, the two rolls should be overlapped by four inches. When ridge vent installation is performed correctly, the vent increases the home's energy efficiency and extends the life of the roof.
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