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. (A Beginners Guide) DoneContinue, Roofing Felt Nails Or Staples? For all Owens Corning shingles, roofing nails should penetrate into the wood deck by a . They cost less per square foot to install than nails, making them a good choice for those working with limited funds. In addition, both require similar tools for installation. On the flipside, if you rush through the initial steps, the felt installation can be compromised by sloppy oversights such as stray nails. Start at one of the upper corners of the felt and continue along the perimeter. Starting at the eave, 36-inch-wide (914 mm) strips of underlayment felt shall be applied overlapping successive sheets 19 inches (483 mm) and fastened sufficiently in place. This is because staples are more likely to rust and break over time. Square cap nails are typically used for fastening felt underlayment and not asphalt shingles. Below we will explore an in-depth analysis of the two fastening systems to help you select the right one for your needs. If you take the time to properly prepare the roof, then laying the felt will be easy. They are also less likely to leave behind unsightly marks on your top. On shallow sloped roof, we would suggest the overlap is increased to 75mm. 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. The most common include galvanized roofing nails and aluminum roofing nails, but you can also find copper and stainless steel roofing nails. Of course, if you find yourself overwhelmed by the planning, preparation, or execution, you can reach out to professionals in your area. Roofers tend to use the roofing nails they already have on hand to install flashing. Repeat until the roof is covered. It takes 3 bundles to cover a square if you use 3-tab shingles, the most common type. 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. Copper nails are most often used on roofs with copper flashing and accessories. Its not wise to attempt to reuse them, as they may cause problems on the new roof. A 2d nail is 1 inch long, for example, while a 16d nail is 3 1/2 inches long. If your building codes require thicker sheathing, youll need 1 -inch nails. Roofing nail lengths are available in one to two inches. In addition to these, nail felts are made from steel and used only to secure the roofing felt underlayment. The most common size is 3/8 inch diameter with a 1-1/2 or 2-inch length. The differences between the stable and nails are visible. Some roofers recommend laying a strip of adhesive rubberized membrane over the drip edge at the eave as an added protection. The drip edge protects the edges of the roof deck and is often installed after the underlay is attached. Are you looking out for ways of preserving your roof rafters to enable them to stand the test of time? of the shingle tabs where the bottom edge of the tab meets the top of the cutout. Rolls of felt are 36 wide x 144 long for 15# and 72 long for 30#. Roofing felt is commonly used between roof deck sheathing and roof shingles. Plus, they may have been otherwise damaged. Roll out the first course, align it, tack it down with galvanized nails or staples, and cut it to size. This is because there is more surface area for the nail to grip. By using this website you accept our use of cookies and the. 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. Fasten the field area in the middle of the roll a minimum of 24 O.C. Roofing felt isnt designed to be left exposed to the elements. 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 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. A nail gun can be used to quickly install some nails to the roofing paper wont slide around. 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. As a result, roof nails can last for over 50 years, and most last for more extended periods provided the building is still standing. A larger-size head might increase the risk of exposing part of the nail head in standard nailing locations on the shingle. This is helpful when you have a large roofing project. Corrosion is always a concern with any metal roofing fastener. So in terms of quantity, a roofing roll is about the size of one composite . . Some roofing felts are actually glued down. What Type of Nails for Felt/Underlayment? Two or more people are required to help roll out and straighten the paper during the process. (Explained), Or Drywall For Ceiling (All You Need To Know), How To Overlap Or Hang Drywall On 45-Degree Corner? Construction stapler or plastic washer nails. Roof nails go deep into the roofing shingles and the roof decking, providing a firmer grip and preventing the asphalt from sliding around. The numbers refer to the actual weight of the felt. 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. The information on this website is subject to change without notice. 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. Follow manufacturers instructions when choosing 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. Synthetic Roofing Felt, do not use nails or staples without caps. Roofing staples are a fastener to secure roofing felt or tar paper to the roof deck. 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. 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 the lower gable edge of the roof deck and work upward. Such factors include the nail spacing requirements of the total area of your roof and the slope or grade of your roof. Dont tack the upper edge as it will be tacked down with the overlapping next course. The three types are: Asphalt, tar, or bitumen-saturated felt, Synthetic or non-bitumen underlay, and Rubberized asphalt underlay. By Maria Goudiss. Professional roofers look for the correct length because they want the nails to puncture the decking entirely. A roof felt is a moisture barrier made of natural and synthetic materials. The seams between sheets use nails at 5cm spacing. After this, lines should be snapped every 34 as you move up the roof. Wood splinters should also be pulled out for a smooth, clean decking surface. Choosing the suitable fastener for your roof or shingle is dependent on four factors; the type of fastener, correct installation, placement, and holding strength. The added depth that roofing nails provide makes them less likely to come loose over time. The penny system is an old way of classifying nails. The reason they want you to use felt nails is to prevent blow offs if left exposed or high wind areas. At the gable ends trim flush to the decking or leave 1/2 to 1 to wrap the edge when installing the drip edge. The manufacturing process of felt nails is more complex than staples. Another benefit of roofing staples is that they cause less damage to shingles than nails. Leave about 5cm between each nail, and ensure the sheet is pulled tight and sitting in line with the roof. 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 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. For a 30lb felt, you should use T50 staples which generally have inch wide crowns and a length variation that include , , , and inches. This is because the nails are made of a stronger material that can withstand more wear and tear. Aluminum is a weaker metal than steel and copper. Nail shank diameter should be at least 11-12 gauge for roofs. The added depth that roofing felt nails provide makes them slower to install. Ultimately, it is best to refer to your building codes and roofing manufacturer for more specific guidance. Typically 2 to 3 days will be required for this. Depending on your local building authority, you can use staples for roofing felt or, in other words, as roofing felt underlayment. It is available in rolls of 15 and 30-pounds per hundred square feet. Due to these, Read More Plywood Under Deck Boards! 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. Square cap nails may have a smooth or coiled shank. For best performance, you should use ring roofing nails that are made of hotdipped galvanized steel. Directly answering if you can use staples for roofing felt depends on your local building authority and fire codes. For example, when using Cambridge shingles, youll use roughly 240 nails, because of their Advantage size. It is versatile, strong, and affordable. Head diameter According to the IBC, the minimum head diameter for a roofing nail that's in compliance with IBC guidelines is 9.5mm. That is why they are used for additional water tightness in extensive wind areas to reduce the chances of wearing and tearing. This can be done prior to tacking or afterward. Unfortunately, it's not rated for fire resistance. Some suggest you fill this hole with roofing cement, but this repair option must be done carefully to maintain the roofs water-shedding performance. Ensure theyre long enough to penetrate through the felt and the roof decking. 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. This step is vital to the success of your new roof and must not be shortchanged in any way. Perhaps they were underdriven in the first place. Rolled roofing is easy to obtain and can be found at all home improvement stores. Choosing the right roofing nails and driving them properly is essential for getting the best performance out of your roof. 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. You may be tempted to reuse these to save on costs. Although roofing staples are designed to be strong, they are not as strong as nails. No matter what fastening system you choose, follow the manufacturers instructions carefully to ensure a successful installation. In this guide well discuss what roofing felt is, why it is necessary, and the different types of underlayment. The roof decking should be completely clean and dry. Staples also have lower holding strength when compared to nails. Many factors have influenced the shift from using felt nails in modern times. They are widely used and have been recognized as effective methods of holding roofing felt or underlayments and can be used for several small-scale buildings or larger building projects. This is because each nail needs to be driven individually into the roof. By the end of your read, you should know how to install felt underlayment for asphalt shingles. Valley, ridges and hips should have a 6 inch overlap of paper. Use the nails with or without plastic caps. On the rakes or gable ends, the drip edge goes on top of the felt, helping to seal the end and prevent moisture penetration under the shingles. 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. This is a fabric impregnated with asphalt to form a moisture barrier. Haring holds a Bachelor of Journalism from the University of Missouri. The first course or starter strip is a 19-inch width of felt, and the next course overlaps it fully. Pull the felt tight so that it lies flat and straight. A greater overlap provides more protection but may cause problems with spacing and fastening upper courses relative to sheathing seams. When preparing to shingle or reshingle a roof, laying roofing felt offers an extra barrier against moisture. Consult your local building department for specific nailing applications. Give it the essential venting. Due to the low slope, the felt needs to be doubled. The kind of nails youll use for your roofing felt will depend on the project youre working on. Ideally, the roof should be done when there is a forecast for several days without a lot of rain. Each run of shed felt should overlap the next by at least 7.5cm. The sun makes the felt brittle and more susceptible to tearing, and rain causes it to ripple. You can find each of the three types of roofing nails in the three materials we list below. Well walk you through the types, sizes and materials you may choose from when picking a roofing nail. Ask your dealer for the correct amount of nails for your size roof, in the length you specify. They may or not allow staple roofing felt. 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). When protected by well-maintained shingles, the underlay will last between 20 and 30-years, or as long as the asphalt shingles. ONLY USE 1 diameter plastic cap roofing nails. The paper should then be nailed in or stapled every three to four inches across. However, you may need to replace staples more often than felt nails. . For the lower . Materials used to make the natural and synthetic underlayment include; wood cellulose, polyester, and fiberglass. Tack the gable edge and tack the bottom edge and mid-line as you unroll. 2 1 Overlap the corner by enough to trim the edge of the end shingle properly. For slopes greater than 4/12 a single layer of felt is acceptable. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. Product Specs Type: Synthetic Size: 250 feet long by 4 feet wide Fire rating: None. Therefore, settling to use any of your options depends mainly on the slope of the roof of the building they are being installed on. We have the following; For galvanized roofing shingles, they make use of a 16 gauge shank. We'd recommend nailing from the centre of the edge of the sheet and working outwards. -A 5/12 roof deck 4x 8 is 32sqft x 1.10 = 35.2sqft. 8D nails are considered standard for OSB roof sheathing materials. (Follow Correct Way)Continue. High wind areas and other types of shingles may need more. Remember to follow appropriate safety practices when working from ladders or on roofs. Use a utility knife or hook-bladed knife to cut the felt. In terms of the installation, there is not much difference between the two fastening systems. Install the drip edge, so it projects past the ends of the eaves by about 3/4 at the gable or rake end. 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. Specification Material: carbon steel, stainless steel, aluminum, copper. This will help keep any moisture from getting under the felt. It has a heavy-duty, anti-jam stapling mechanism and magazine that loads from the bottom of the handle. 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. The T-50s are compatible with most brands of staple guns or hammers. This is because nails create a stronger bond than staples, making the roof more resistant to high winds and other severe weather conditions. Unlike selfadhering underlayments, such as ice and water protector, felt underlayment needs to be fastened in place with nails. Prevent Ice Dams 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. 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. It is quicker to install and can withstand winds and extended exposure better than felt. Nails will also be required for any roofing project. They install it by tacking one end, rolling it out, and centering it on the ridge. Cap Nails Popular Filters Length Measurement: 1-in Length Measurement: 1-3/4-in Length Measurement: 1-1/2-in Length Measurement: 7/8-in Grip-Rite Length Measurement: 3/4-in Sort & Filter Sort & Filter Sort By Featured Best Sellers Highest Rated New Arrivals Special Offers Bulk Savings (4) Length Measurement 3/8-in (2) 3/4-in (1) 7/8-in (1) 1-in (5) 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. Specifically, youll need roofing cap nails. Leave the top portion of the paper loose. Stainless steel nails are best used for slate and ceramic roofs or asphalt shingle roofs in coastal climates. Measure the length from edge to edge and the eave to ridge, and multiply the values for the area of half the roof. Finished Product We'd love to see how your project to replace roofing felt turned out! 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. 15-pound roofing felt costs around $20 for just over 420 square feet. Fasten drip edge on eaves with galvanized nails and a hammer, about 12 inches apart, before laying roof felt. IKO assumes no responsibility for errors that may appear on this website. It will protect the roof for about a month without shingles, provided it is fastened properly and it isnt too windy. Place your nails in a plastic cap or one with nails. The installation process for felt nails and staples is relatively simple and can be completed by most people with little experience. $3.19 $ 3. Most professional roofers use staples instead of nails when installing roof felt on larger roofs. 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. Unroll the felt on the roof deck or ground, measure the width, and cut. Use with Dewalt DWTTH700 series, Stanley TRA700 series, or Arrow T-50 5/16, 3/8, or 1/2 staples. Here at Roofing Superstore, we've put together a guide outlining the different types of roofing nails, and which materials they work best with, so read on. Factors such as type of fastener, accurate installation, placement, holding strength, and local building authority codes all influence why people choose nail or staple fastener for their roofing felt underlayment. Steel makes for strong nails. 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 . 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. There are various roofing nails available in different materials. However, as roofing nails will usually be hidden by the shingles above them, steel nails dont detract from the look of the roof. Even if it is imperceptible to you, water will find it. Nail metal drip-edge flashing, which bends over the roof and down the edge of the facing board, on all roof edges. 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. 5. Roofing nails are available in lengths ranging from one to two inches. Surface treatment: polish, electro galvanized, hot dipped galvanized or vinyl coated. It is required to block any rain that gets under or between shingles from penetrating into the wood decking. If youre installing by the High Wind Application, youll use two more nails a shingle, so 360 nails per square. The M12 also has a functional belt clip which makes it easy to stow and free up your hands. The first course commonly extends past the lower edge of the sheathing by 1/2 or to cover the drip edge. Lets pretend the roof design details are conventional and so the roof deck sheathing will be 5/8" to 3/4". Thats a bad idea. Like roofing nails, roofing staples are available in various sizes to accommodate different thicknesses of roofing felt. 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. As you work, the paper can be tacked down in the center so it wont blow away. 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. Synthetic underlayment comes in 10 square rolls, while regular #15 felt comes in 4 square rolls. They are made from galvanized or stainless steel for durability and rust resistance. Rolled Roofing Basics. Staples are typically made from aluminum or other metals that are not as durable. If you are not sure what size of nails to use for your project, you can always consult the building department in .
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