The penny system is an old way of classifying nails. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. This should be laid before the first felt is applied. This is because the staples are smaller and have a smaller head, which means they pierce the shingle less. The felt should be trimmed flush with the edge or 1/2 past to wrap the edge when the drip edge is placed. If you were considering using screws for their extra security, consider ring shank nails instead. Square cap nails are typically used for fastening felt underlayment and not asphalt shingles. There are certain qualities that roofing felt underlayment must possess. Step 4 Prepare for the Shingle Installation Start the roof felt at one bottom corner of the roof. 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. Roofing felt nails or staples in time past was quite challenging to distinguish which of the two roofing options is better clearly. Exposed nails are those with visible nail heads. Steel makes for strong nails. In terms of the installation, there is not much difference between the two fastening systems. Some roofing felts are actually glued down. There are fewer requirements for these nails than those used to secure shingles. The next step is to cap the ridge. ONLY USE 1 diameter plastic cap roofing nails. Most building codes regulate that at least a 12 gauge shank with a diameter of 3/8 head be used. 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. Once you understand what it does, and you know which one you need, you are ready to lay the underlayment for your roof. A nail gun is the best way to install roofing felt nails. The numbers refer to the actual weight of the felt. Roofing nails should be 1-1/4 to 2 inches long to ensure that it sufficiently penetrates and embeds in the roof sheathing. 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. Cut it at the opposite gable edge, and roll out and staple the next course with the desired overlap. How Long Are Roof Nails. Ensure theyre long enough to penetrate through the felt and the roof decking. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. Synthetic underlayment comes in 10 square rolls, while regular #15 felt comes in 4 square rolls. Your area can also affect the number of nails needed for your roofing project. Nails and staples have several significant differences. Roof slopes from two units vertical in 12 units horizontal (17-percent slope) and . Staples are faster but lack the holding power of nails. Roofing nails are the most common type of fastener used to attach asphalt shingles to the roof deck. Work up the roof to the peak and fold felt over the top, overlapping at least 3 inches and fasten it on both sides. Secure the shingles with the roofing nails. Grip the hammer tightly by the end of the handle and hold your thumb at the top of the shaft. Nail shank diameter should be at least 11-12 gauge for roofs. As you work, the paper can be tacked down in the center so it wont blow away. 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. An 8d nail, for example, cost 8 pennies for 100. Felt nails are more expensive than staples. However, you may find they are more expensive. 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. The standard size for roofing felt paper is categorized into four. 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. Under most building codes in North America, 12-gauge is the minimum thickness of nail allowed on a roof. The answer depends on the thickness of the plywood and the building code. 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. Cut the extended eaves drip edge flashing between the roof leg and vertical leg at a 45 or 90 angle to the rake edge. There are two ways to measure the size of a roofing nail diameter and length. Specification Material: carbon steel, stainless steel, aluminum, copper. 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. As a result, they are less susceptible to jamming and easily reload. Be sure the tar paper lies in flat strips that are absolutely smooth. Roofing nails with gaskets are intended for metal roofs. . Paper can be fitted around vent pipes by cutting a slit and then putting it over the pipe. Add 10% to the shingle estimate to account for waste. One MSR roofing roll is usually about 36 feet long by 36 inches wide. The M12 also has a functional belt clip which makes it easy to stow and free up your hands. Fit felt around vent pipes or other protrusions by cutting it with a utility knife and fastening around the bottom of the vent. Roofing nail lengths are available in one to two inches. Felt nails have a more secure grip on the paper backing of the roll. The sooner it is protected by shingles, the better. All nails and staples should be placed on the lower half of the paper. In addition, the chances are that You can install staples incorrectly or inaccurately. Roof Felt. Jewelry Box Felt Liner, A4 Size (8.3" x 11.8", Black) 4.6 out of 5 stars 2,348. Lay it over metal flashing edges around vents and pipes. For slopes greater than 4/12 a single layer of felt is acceptable. The best roofing nails for 7/16 sheathing are 3/8-inch to 7/16-inch diameter. Overlap the end of a roll about 4 inches with the start of a new roll and fasten both pieces to the decking. At the gable ends trim flush to the decking or leave 1/2 to 1 to wrap the edge when installing the drip edge. What Type of Nails Should be Used with Shingles? -A 3/12 roof measuring 20x48 per half is 960 for a total area of 1920sqft. Easier roll-out with less sticking. This is because each nail needs to be driven individually into the roof. 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. It must be covered with waterproofing membrane, usually "roof felt," also called tar paper. Please refer to our Legal Notices for U.S.A. or our Legal Notices for Canada. The two main types are roofing felt 15 and 30. But, as with so many other projects, the key lies in the prep work. Use the nails with or without plastic caps. In this case, youll want to use roofing nails made of robust materials such as steel or aluminum. This means they may lose over time, especially in high winds or severe weather conditions. Strips should always lay flat. Corrosion is always a concern with any metal roofing fastener. Be sure you to use the correct nail length and place it properly. A roof certification is a significant component of the overall roof maintenance management and significantly benefits homeowners. For a 30lb felt, you should use T50 staples which generally have inch wide crowns and a length variation that include , , , and inches. Most roofing installation processes include attaching roofing felt ( roofing underlayment or tar paper) to the roof deck as recommended by the National Roofing Contractors Association (NRCA). Whatever the cause, its important to fix any nail pops in a roof to prevent damage. And while they may seem pretty straightforward, there are various factors to consider when choosing the suitable roofing materials and methods for your project. 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. Roofing nails are available in lengths ranging from one to two inches. So if youre on a budget, staples may be the way to go. Consider other underlayment options as needed, such as rubber or tar products. It is versatile, strong, and affordable. 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. Start at the lower gable edge of the roof deck and work upward. When nailing shingles, proper penetration into the roof deck is essential to ensure the nail and shingle remain secure. Roofing and reroofing are two of the most common home improvement projects. That is why they are used for additional water tightness in extensive wind areas to reduce the chances of wearing and tearing. Roofers tend to use the roofing nails they already have on hand to install flashing. NOTE: Not all products featured will be available in your area. Shank diameter. Nail the felt in using 0.59 inch (15 mm) galvanized clout nails. (Follow Correct Way)Continue. 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. As a bonus, roofing staplers are easy to handle and do not require many repairs. The roofing felt should be applied in layers that overlap. Felt provides a breathable, water-resistant membrane that helps shed moisture that makes it past the shingles. The overhang to the next strip should be 3/8 inch. At intermediate supports, fasten panels 12 inches on center. 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 actual process of putting down the underlayment will be one of the fastest parts of the entire roofing process. This can cause your roofing material to lift, making it more susceptible to damage in a storm. Perhaps they were underdriven in the first place. If there are hips, valleys, or dormers, increase the total by 10 to 25%. Overlaps will typically be minimum 50mm and will depend upon the slope of the roof. While this may not be a concern for some homeowners, others may find that staples are not as aesthetically pleasing as nails. In high-wind areas, more fasteners may be required. Roofing felt nails are made of galvanized steel or aluminum, which resists corrosion better than standard steel staples. 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. 2 1 Overlap the corner by enough to trim the edge of the end shingle properly. Nail every 8 to 12 and about 1-1/2 in from the outer face of the drip edge. They install it by tacking one end, rolling it out, and centering it on the ridge. Rolls of felt are 36 wide x 144 long for 15# and 72 long for 30#. Corrosion resistant to ensure they last over time, and for use where strong joints are required. In addition to these, nail felts are made from steel and used only to secure the roofing felt underlayment. 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. Make sure the nails are embedded securely into the felt and wood sheathing. Head: flat round. Place your nails in a plastic cap or one with nails. Screws leave small gaps in the material they are driven into, and this may be enough to allow for a leak. Unroll the first course beginning at one gable edge and rolling to the opposite edge. Metal Mesh in Drywall: All You Need To Know, Does Drywall Tape Need To Be Completely Covered? The sun makes the felt brittle and more susceptible to tearing, and rain causes it to ripple. Typically 2 to 3 days will be required for this. Trim the felt, so it is flush with the face of the drip edge. The synthetic underlay has greater water-resistance and the no-slip coating offers better traction for installation safety. The RSRS designation indicates the fastener is a ring shank roof sheathing nail. This step is vital to the success of your new roof and must not be shortchanged in any way. Roll out the rest of the course, tacking along the center as you go. Various nail shank types for different requirements. A nail gun can be used to quickly install some nails to the roofing paper wont slide around. What Size Staples Required for 30lb Felt? 2004-2023 IKO Industries Ltd., IKO Industries, Inc., and their affiliated and related entities. Staples can be used for tacking it down, but not recommended to hold. Some roofers recommend laying a strip of adhesive rubberized membrane over the drip edge at the eave as an added protection. Roof nails go deep into the roofing shingles and the roof decking, providing a firmer grip and preventing the asphalt from sliding around. Galvanized nails are also available in a variety of lengths and sizes. Unroll the start of the first course, align with the edges and chalk line, and tack down the gable edge. Divide the total footage by 100 to determine the number of "squares" in the roof. You can learn more about the sizes of staples here. Nails will also be required for any roofing project. Leave about 5cm between each nail, and ensure the sheet is pulled tight and sitting in line with the roof. Square cap nails may have a smooth or coiled shank. The most common width is 36", although they are sometimes available in other sizes. This makes it 320 nails per square foot. Its not wise to attempt to reuse them, as they may cause problems on the new roof. removing the shingle and installing a new shingle, choosing between a nail gun and a roofing hammer. Unroll the felt on the roof deck or ground, measure the width, and cut. Roofing felt is a type of underlayment that professionals install beneath a roofs shingles. Staples are used with a variety of roofing materials. Staple guns are much easier to handle or work with; this is an added advantage of staples. Also, you can use an aluminum or copper nail, depending on your location. It is available in rolls of 15 and 30-pounds per hundred square feet. Successive courses repeat the 19-inch overlap. So for the 24 square roof example, you would need 2.4 rolls of synthetic underlayment, or 6 rolls of regular #15 felt. If you live in an area with high humidity, you may need to replace your staples more often. Felt nails are less visible than staples. You want roofing nails with plastic washers for roof underlayment. Multiply the width by the height for the square footage of each section, then add the . Any stray roof tacks, pieces of old felt, or general debris should be cleared off. Avoid using cement on the roofing felt, especially if you plan to re-shingle the roof that day. Many metal roofing dealers specify minimum of 7/16" sheathing. Never mount the felt paper on wet sheathing. The longer it is left uncovered, the more it will weather and fade. What size nails for OSB sheathing? The length of nail you use depends on the thickness of the sheathing and shingles you use. This goes a long way to bring to light how durable nail roofs are. Replace any damaged decking and sweep the deck clean of sawdust and debris. Roofing felt products should not be glued to the decking in lieu of using nails or screws. The felt should be secured every six inches with nails or staples. There are applications where felt is necessary and others where it is not. Once this course is laid, you can begin snapping horizontal chalk lines up the roof to ensure straight rows. The lower edge will need to be trimmed to the drip edge. Other Materials 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. Heavyweight asphalt shingles commonly have a longer service life. The size and complexity of the roof decking affect how long the task will take, but regardless of size, most felt installs are similar. Unfortunately, it's not rated for fire resistance. I will also need to overlap the felt, how much overlap should I use? For example, when using Cambridge shingles, youll use roughly 240 nails, because of their Advantage size. Fold the top part of the extended metal down so it is covered by the rake drip edge. You cannot use screws for roofing shingles, only roofing nails are approved fasteners. Using roofing nails and roofing staples are common methods. 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. That being said, you can expect a small, 5-pound box of smooth shank galvanized steel roofing nails to cost around $10. Prevent Ice Dams That depends on the exposure and coverage of your shingles. Make sure to expose 5 in. As always, your comments and suggestions are appreciated. This means that using a staple to nails is four staples to 1 nail. They can also be overdriven or even underdriven. Product Specs Type: Synthetic Size: 250 feet long by 4 feet wide Fire rating: None. Roofing felt on high-traffic roofs, for example, must be able to stand up to a lot of wear and tear. Unlike selfadhering underlayments, such as ice and water protector, felt underlayment needs to be fastened in place with nails. Taking the time to properly prepare the sheathing will make all the difference in how quickly and easily the felt paper is installed. Surface treatment: polish, electro galvanized, hot dipped galvanized or vinyl coated. It starts with installing solid decking, usually plywood or oriented strand board, but that is not waterproof. Different roof slopes require different protection for asphalt shingles. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. Drip edge flashing has three distinct parts and typically comes in 10 lengths. One of the essential factors is selecting a suitable fastener! Such factors include the nail spacing requirements of the total area of your roof and the slope or grade of your roof. Haring holds a Bachelor of Journalism from the University of Missouri. Start at the lower edge of the roof, nailing the batten into place at the centre of the rafter. Chalk lines should be snapped 33 5/8 above the eave line. The main drawbacks are cost and the need to use capped fasteners. The most common shingle roofing nail size is 3/8 inch diameter with a 1-1/2 or 2-inch length. Like roofing nails, roofing staples are available in various sizes to accommodate different thicknesses of roofing felt. The key difference between a roofing nailer and a framing nailer is the nail size. Fasteners should be long enough to penetrate at least 3/4" (19 mm) into wood decks or just . Finished Product We'd love to see how your project to replace roofing felt turned out! 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. 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. Each higher number in the penny system represents a 1/4-inch length increase, up to a 12d nail (3 1/4 inches long). Rolls of felt are typically 36 wide, and low slopes require 19 overlaps. If you need to install new roof decking or OSB, youll need to nail it to the roof truss. The International Residential Building Code (IRC) states two layers of felt for slopes between 2/12 and 4/12. Roofing Nails Best Seller Grip-Rite #12 x 1 in. Still, these rings give the nail extra staying power, or grip, in the shingles and sheathing. If you take the time to properly prepare the roof, then laying the felt will be easy. Nails for roofing felt are also more expensive than typical nails. What Size Roofing Nail Should I Use. 1. Wood splinters should also be pulled out for a smooth, clean decking surface. . Add more felt if required Materials used to make the natural and synthetic underlayment include; wood cellulose, polyester, and fiberglass. 5. Even if it is imperceptible to you, water will find it. Staples are also not as durable as nails and are more likely to come loose in high winds. All rights reserved. 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. However, you may need to replace staples more often than felt nails. With 1000 per box, the 1/4 length is ideal for tacking roof underlayment. 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 . (A Beginners Guide) Done. It also helps the roof sheathing by preventing leaks and extending its lifespan. The installation process for felt nails and staples is relatively simple and can be completed by most people with little experience. Tack about every 4 on gable edges and 8 or so everywhere else. Length: 1" - 3". 1 Use a sharp knife to trim that shingle to within about 18 in. Not felt to timber. This is because the moisture can cause the staples to rust and break down faster. It effortlessly discharges up to 1500 staples per single 1.5Ah battery charge and has a power adjustment for different materials. Visit the officia. 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. Use a construction stapler or a hammer. A typical roll of 15-pound felt is 36 wide and 144 long and covers 432sqft. 8D nails are considered standard for OSB roof sheathing materials. Clout nails should be 15mm large head clout nails. This 400g pack of joist hanger nails from Wickes are designed to secure joist hangers in roofing, ceiling, flooring and decking work. Shed Roof vs. Gable Roof Comparison Guide. However, most roofers prefer staples because they are less expensive, have outstanding holding power, and enable roofers to work faster by covering an extensive space with their compact collection. It has a heavy-duty, anti-jam stapling mechanism and magazine that loads from the bottom of the handle. The drip edge protects the edges of the roof deck and is often installed after the underlay is attached. This can be done prior to tacking or afterward. Nails that didnt fully penetrate the sheathing may work their way up over time. in normal wind zones. Installing roofing felt is easy to install and is the first step to protecting your roof decking and home. Bitumen is a waterproof mixture of coal-tar pitch or asphalt and other viscous and sticky organic liquids. Overlapping sheet, shed felt adhesive sticks, felt to felt. A range of roofing nails to cater for all of your applications, we have shed felt nails, cut clasps, clouts and annular ring nails. Fasten drip edge on eaves. This is because the nails are small and blend in with the paper backing of the roll. 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. (on center) on both head and end laps. 316 nails have elements of nickel, polymer and chromium . 3. Measure the length from edge to edge and the eave to ridge, and multiply the values for the area of half the roof. Cost is an essential consideration for home improvement projects. So in terms of quantity, a roofing roll is about the size of one composite . (Follow Correct Way), What Does A Roof Certification Cover? IKO assumes no responsibility for errors that may appear on this website. For the lower . The number of nails youll need for your roofing felt will depend on a few factors. If your building codes require thicker sheathing, youll need 1 -inch nails. Sometimes homeowners put in new nails when trying to attach something on the roof. Double that value and you have the full roof area. Professional Professional Tools & Support. Every time there is a gust of wind, we rely on the nails weve chosen to hold new shingles in place. This will help keep any moisture from getting under the felt. This is because they are faster and easier to install than nails. Installing roof felt is a two-person job. 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. Professional roofers look for the correct length because they want the nails to puncture the decking entirely. Remember to follow appropriate safety practices when working from ladders or on roofs. #30 Asphalt Saturated Underlayment Benefits. This point is expertly designed to keep the decking intact when it punctures through. Tack the next course or layer into place. Roof felt is available in weights of 15 or 30-pounds per 100sqft. Account for waste. They cost less per square foot to install than nails, making them a good choice for those working with limited funds. 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. Follow manufacturers instructions when choosing nails. To ensure complete satisfaction you should make final color selections from several full size shingles and view a sample of the product installed on a home. The paper should then be nailed in or stapled every three to four inches across. 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. 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. Nails and staples are standard roofing underlayment options that you can use on all building products. However, both fastening systems are durable and will last for many years with proper care and maintenance. Is it necessary to use adhesive? Tack the gable edge and tack the bottom edge and mid-line as you unroll. You may want to wear work gloves to avoid injuring your hand or developing blisters. Some materials require heavier felt paper. 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. The added depth that roofing felt nails provide makes them slower to install. The quality of the material used is also an important consideration. Because they are less secure than nails, staples are more likely to lose over time. 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. Depending on your local building authority, you can use staples for roofing felt or, in other words, as roofing felt underlayment. However, the size differs depending on the application and the local building codes. You can find each of the three types of roofing nails in the three materials we list below. 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. A greater overlap provides more protection but may cause problems with spacing and fastening upper courses relative to sheathing seams. 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. 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. Start at one of the upper corners of the felt and continue along the perimeter. The most common include galvanized roofing nails and aluminum roofing nails, but you can also find copper and stainless steel roofing nails. Directly answering if you can use staples for roofing felt depends on your local building authority and fire codes. 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. Installing roof felt is a two-person job. However, the process can be tedious, as you must constantly stop and reload the nail gun, adding more time to your roofing project. Rolled roofing (or roll roofing)also known as MSRcomes in rolls of 100 square feet. 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. Head diameter According to the IBC, the minimum head diameter for a roofing nail that's in compliance with IBC guidelines is 9.5mm. Due to the low slope, the felt needs to be doubled. Leave the top portion of the paper loose. On the other hand, Roof nails have a more substantial and extended holding strength. So, choose these nails where performance, especially wind resistance, is a priority. Sheathing that gets wet before the roofing material can go on should be allowed to dry thoroughly before continuing. Both felt nails and staples require minimal maintenance. 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. Roofing felt isnt designed to be left exposed to the elements. Well explain how to install the roof felt and drip edge, and make some tool and material recommendations. They are also available in both hand-drive and pneumatic versions. Before laying roof felt, all rotten decking must be replaced. 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. [4] 4. For more tips on roof installation and tools, read our article about choosing between a nail gun and a roofing hammer. For irregularly shaped roofs, break it down into smaller rectangles or triangles to calculate the areas.
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