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1. 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. To determine how much felt is required for a roof, find the area of the roof deck to be covered. Due to the low slope, the felt needs to be doubled. felt application we use plastic cap nails with the Bostitch cap nailer. Drip edge flashing has three distinct parts and typically comes in 10 lengths. Fortunately, galvanized roofing nails and steel nails pass the building code test. Today, the penny system refers specifically to nail length. There are fewer requirements for these nails than those used to secure shingles. As its many names suggest, this type of nail has rings along the shank. Read More What Does A Roof Certification Cover? Remember to follow appropriate safety practices when working from ladders or on roofs. roofing company near me. Its general knowledge that nail roofing felt, and staples are almost the same and give desired results: securing or holding the roofing felt. About Us | Contact Us | Privacy Policy | Home. Product Specs Type: Synthetic Size: 250 feet long by 4 feet wide Fire rating: None. The reason they want you to use felt nails is to prevent blow offs if left exposed or high wind areas. Common nails, or even wood screws, may be acceptable nails for OSB roof sheathing. Also, you can use an aluminum or copper nail, depending on your location. Nail shank diameter should be at least 11-12 gauge for roofs. Roofing nails that are 11- or 10-gauge are also allowed by most building codes as they are thicker and sturdier. 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. Roofing felt nails are less visible than staples, which give your roof a neater appearance. Steel makes for strong nails. After this, lines should be snapped every 34 as you move up the roof. A range of roofing nails to cater for all of your applications, we have shed felt nails, cut clasps, clouts and annular ring nails. These have large plastic caps for heads, which help prevent water intrusion. Roofing nails are available in lengths ranging from one to two inches. The most distinguishing feature of a roofing nail that sets it apart from other types of nails is the size of its head. The drip edge protects the edges of the roof deck and is often installed after the underlay is attached. When installing thicker shingles, you may need to use a longer nail in order to penetrate the OSB beneath fully. 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. Package 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. That is why they are used for additional water tightness in extensive wind areas to reduce the chances of wearing and tearing. well overall size is 15x8 and from ground to pitch of the roof it should not be more than 10 feet.I am thinking front 15 feet wide wall will have a higher side of roof and back 15 feet wall . Roof nails go deep into the roofing shingles and the roof decking, providing a firmer grip and preventing the asphalt from sliding around. The manufacturing process of felt nails is more complex than staples. 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. Simply put, smooth shank nails have a smooth shank. (Follow Correct Way)Continue. Synthetic Roofing Felt, do not use nails or staples without caps. Different roof slopes require different protection for asphalt shingles. Roll out the first course, align it, tack it down with galvanized nails or staples, and cut it to size. (on center) on both head and end laps. The key difference between a roofing nailer and a framing nailer is the nail size. However, on low-slope roof applications from 2:12 to 4:12, roofers may use . Like roofing nails, roofing staples are available in various sizes to accommodate different thicknesses of roofing felt. There are certain qualities that roofing felt underlayment must possess. Clout nails should be 15mm large head clout nails. 8D nails are considered standard for OSB roof sheathing materials. The kind of nails youll use for your roofing felt will depend on the project youre working on. (A Beginners Guide) DoneContinue, Roofing Felt Nails Or Staples? For roof slopes greater than 4/12, multiply the area by 1.10 to account for the 2 overlap and potential waste. Multiplied by 1.10 is 2112sqft. Grip the hammer tightly by the end of the handle and hold your thumb at the top of the shaft. Multiply the width by the height for the square footage of each section, then add the . Nails and staples have several significant differences. Though they vary greatly in material, size and type, all roofing nails share one helpful characteristic: a diamondshaped point. It is available in rolls of 15 and 30-pounds per hundred square feet. This goes a long way to bring to light how durable nail roofs are. Continue along the roof to the other end and trim the felt flush at the end with a utility knife. Type 316 Stainless Steel Nails - These are what you should be using on any new roof build involving an exterior wood product. For the lower . The sun makes the felt brittle and more susceptible to tearing, and rain causes it to ripple. 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. Sheathing that gets wet before the roofing material can go on should be allowed to dry thoroughly before continuing. Unlike selfadhering underlayments, such as ice and water protector, felt underlayment needs to be fastened in place with nails. Dont confuse these cap nails with gasket roofing nails. This article will explore the pros and cons of each technique to help you make an informed decision for your next roofing project. In most jurisdictions, building codes require using nails for roof shingles. 30-pound roofing felt costs more, but also offers more protection. 1. Bitumen is a waterproof mixture of coal-tar pitch or asphalt and other viscous and sticky organic liquids. But at the same time, you have a lot of jams on the felt paper while working with nail guns, roofers who use staples any form of jam. Professional Professional Tools & Support. . You may prefer to use copper roofing nails on a roof with other copper accents. Be sure you to use the correct nail length and place it properly. Nail down squarely (90 degrees) into the deck to secure caps flush to the underlayment. of the face of the lower-course shingle on the other side of the corner. Measure up the roof and snap chalk lines where the upper edge of each course will go. -A 5/12 roof deck 4x 8 is 32sqft x 1.10 = 35.2sqft. Copper is strong and naturally resists rust and corrosion. Typically 2 to 3 days will be required for this. Start at one of the upper corners of the felt and continue along the perimeter. 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. 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. Roof slopes from two units vertical in 12 units horizontal (17-percent slope) and . 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. If youre using typical architectural shingles and 3/8-inch-thick sheathing, youll need 1inch nails. The longer it is left uncovered, the more it will weather and fade. Estimating your roofing materials is key to your success, so youll want to know how many nails youll use in a square. For best performance, you should use ring roofing nails that are made of hotdipped galvanized steel. Both felt nails and staples require minimal maintenance. There are applications where felt is necessary and others where it is not. On the other hand, Roof nails have a more substantial and extended holding strength. Felt nails are less visible than staples. Roof Felt Underlayment to Protect Your Home From the Elements Check the weather. Continue unrolling and tacking until you near the other gable edge. Due to these, Read More Plywood Under Deck Boards! On shallow sloped roof, we would suggest the overlap is increased to 75mm. Therefore, settling to use any of your options depends mainly on the slope of the roof of the building they are being installed on. You may want to wear work gloves to avoid injuring your hand or developing blisters. Check the requirements for the roofing material that will go over the felt. 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. This should be laid before the first felt is applied. Roll out the first course, tacking it down as you go. There are two ways to measure the size of a roofing nail diameter and length. Most roofers use four nails per shingle and five nails for each roofing felt square. Prevent Ice Dams Roofing and reroofing are two of the most common home improvement projects. I will also need to overlap the felt, how much overlap should I use? A nail gun is the best way to install roofing felt nails. 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. 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. However, as roofing nails will usually be hidden by the shingles above them, steel nails dont detract from the look of the roof. Roofing felt nails or staples are effective roofing methods or options that can go well with very soft materials. According to the International Building Codes 2018 Edition, fasteners for asphalt shingles must be a minimum of a 12-gauge shank.While it is common to find nails with a shank diameter of 13 inches, they cannot be smaller than 12 gauge and still comply with the IBC. However, felt nails edge out staples in terms of cost, hold, durability, and quality. The hotdipped method results in a thicker layer of zinc that lasts longer, so they are preferred. Do not simply hammer the nail down, renail it in the same spot, or use the same shingle. Roofing staples are a fastener to secure roofing felt or tar paper to the roof deck. Not felt to timber. 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 overhang to the next strip should be 3/8 inch. Installing the roofing felt does take care, but can go very quickly. The standard size for roofing felt paper is categorized into four. One MSR roofing roll is usually about 36 feet long by 36 inches wide. Roofing felt is made of natural or synthetic materials such as wood cellulose, recycled cloth, fiberglass, or polyester. Specification Material: carbon steel, stainless steel, aluminum, copper. All rights reserved. They can also be unsightly if they rust or break over time. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. This website uses cookies to provide necessary functionality and to improve your online experience. That is because the cement will take longer to dry, and when you remove it after it dries, you will cause damage to the roof. Consult your local building department for specific nailing applications. It helps protect the sheathing and the shingles and commonly has parallel lines printed on it that make shingle placement easier. Roofing nails with gaskets are intended for metal roofs. However, aluminum nails are still used on asphalt shingle roofing by some roofers. Each higher number in the penny system represents a 1/4-inch length increase, up to a 12d nail (3 1/4 inches long). And while they may seem pretty straightforward, there are various factors to consider when choosing the suitable roofing materials and methods for your project. 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. Construction stapler or plastic washer nails. Eugene has been a DIY enthusiast for most of his life and loves being creative while inspiring creativity in others. Conclusion Finished Product We'd love to see how your project to replace roofing felt turned out! Use the nails with or without plastic caps. Because they are less secure than nails, staples are more likely to lose over time. Where a roll ends and a new one is begun, the two rolls should be overlapped by four inches. 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. Fold the top part of the extended metal down so it is covered by the rake drip edge. Successive courses repeat the 19-inch overlap. 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 should use 12-gauge or thicker. If you live in an area with high humidity, you may need to replace your staples more often. Wood splinters should also be pulled out for a smooth, clean decking surface. 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. It also doesnt wrinkle when wet or crack and split in the cold. A 2d nail is 1 inch long, for example, while a 16d nail is 3 1/2 inches long. If you take the time to properly prepare the roof, then laying the felt will be easy. Unfortunately, when it comes to asphalt shingle roofs, they fall short in having enough holding strength. Heavyweight asphalt shingles commonly have a longer service life. For more tips on roof installation and tools, read our article about choosing between a nail gun and a roofing hammer. Installing a roof is much more than just nailing shingles onto some boards. Whats The Difference Between Staple And Nails? Even if it is imperceptible to you, water will find it. 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. This makes it 320 nails per square foot. Point: diamond or blunt. The RSRS designation indicates the fastener is a ring shank roof sheathing nail. Although roofing staples are designed to be strong, they are not as strong as nails. Screws leave small gaps in the material they are driven into, and this may be enough to allow for a leak. (Must Read This), Pressure Treated Lumber For Roof Rafters (Lets See), Roof Sheathing Horizontal Or Vertical (Must Read). Measure the length from edge to edge and the eave to ridge, and multiply the values for the area of half the roof. The main drawbacks are cost and the need to use capped fasteners. According to BS 5534, the nails used to fix battens to rafters should usually have a diameter of at least 3.35mm. Highly visible alignment lines. They can also be overdriven or even underdriven. It starts with installing solid decking, usually plywood or oriented strand board, but that is not waterproof. Smooth application of the roofing paper will help you achieve a smooth installation of the shingles. Do the other side of the roof the same way, also with an overlap at the peak. Rolls of felt are typically 36 wide, and low slopes require 19 overlaps. You may be tempted to reuse these to save on costs. Professional roofers look for the correct length because they want the nails to puncture the decking entirely. Fasten the field area in the middle of the roll a minimum of 24 O.C. Your area can also affect the number of nails needed for your roofing project. If youre installing by the High Wind Application, youll use two more nails a shingle, so 360 nails per square. Fasten drip edge on eaves with galvanized nails and a hammer, about 12 inches apart, before laying roof felt. A ring shank nail is also called an annular roofing nail or corrugated roofing nail. Nail metal drip-edge flashing, which bends over the roof and down the edge of the facing board, on all roof edges. Divide the resulting area value by the area one roll of 15 or 30-pound felt will cover, and round up as its sold in full rolls. You dont need to use cap nails or another special type of nail for this purpose. 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. Roofing Felt that exceeds the scuffed area by 6" (152 mm) removing the shingle and installing a new shingle, choosing between a nail gun and a roofing hammer. The layers of felt should be overlapped by 1 inch as you work toward the roof ridge. This makes them more likely to rust and break over time. There should be no wrinkles or other spots that could catch moisture and cause problems. In high-wind areas, more fasteners may be required. Not only is it tedious to yank these nails out, but their zinc coating will also be worn. They are also less likely to leave behind unsightly marks on your top. The next step is to cap the ridge. Roofing nails should be 1-1/4 to 2 inches long to ensure that it sufficiently penetrates and embeds in the roof sheathing. The puncture must be complete so that the whole diamond tip is past the wood. Nails can pop above the roof surface for a number of reasons. The penny system is an old way of classifying nails. He is passionately interested in home improvement, renovation and woodworking. If you are not sure what size of nails to use for your project, you can always consult the building department in . Some materials require heavier felt paper. 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. The added depth that roofing nails provide makes them less likely to come loose over time. Most of the time, staples do not hold down the roofing felt paper or materials well enough in such areas. The head diameter is typically a standard 3/8-inch for all roofing nails. In areas where you can use extreme weather conditions, such as wind-driven rain, ring shank copper nails to seal or resist strong winds blowing over the roofs. Materials used to make the natural and synthetic underlayment include; wood cellulose, polyester, and fiberglass. These factors above determine if your nail or staple underlayment is good enough to hold your roof. 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. That depends on the exposure and coverage of your shingles. I hope you found the guide informative and have a better understanding of how to install roofing underlayment. Another benefit of roofing staples is that they cause less damage to shingles than nails. Roofing nail lengths are available in one to two inches. The cost of your roofing nails will depend on a few factors, including material, type and length. However, the cost varies depending on the size and brand of the product. This way, you can avoid making multiple trips to the store for more supplies. 19. $3.19 $ 3. Divide the total footage by 100 to determine the number of "squares" in the roof. The numbers refer to the actual weight of the felt. FREE delivery Tue, Feb 21 on $25 of items shipped by . 1. Felt nails are more expensive than staples. Drip edges on the eaves, any valley liners and all flashing should be installed before the tar paper is laid. Shank diameter. Nails that didnt fully penetrate the sheathing may work their way up over time.