It also doesnt wrinkle when wet or crack and split in the cold. 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. Give it the essential venting. Paper can be fitted around vent pipes by cutting a slit and then putting it over the pipe. At the gable ends trim flush to the decking or leave 1/2 to 1 to wrap the edge when installing the drip edge. For slopes between 2/12 and 4/12, double the resulting area value and then divide by the area a roll of felt covers. It helps protect the sheathing and the shingles and commonly has parallel lines printed on it that make shingle placement easier. Tack it in place at the corner, with the end flush with the end of the roof and the bottom edge of the roll right along the bottom of the roof deck, over the drip edge. For irregularly shaped roofs, break it down into smaller rectangles or triangles to calculate the areas. According to BS 5534, the nails used to fix battens to rafters should usually have a diameter of at least 3.35mm. 320 nails will be needed to install a square of standard 3-tab shingles, assuming four nails per shingle and 80 shingles per square. Upper lengths of edge flashing should overlap lower lengths by a minimum of 6. Whatever the cause, its important to fix any nail pops in a roof to prevent damage. 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. Installing roofing felt is easy to install and is the first step to protecting your roof decking and home. Galvanized nails are also available in a variety of lengths and sizes. The nails should be spaced 6 to 8 inches apart, so the total number of nails you will use will depend on the size of 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. Length: 1" - 3". Staples also provide great finishing outlooks on your roofing or other building projects. The actual process of putting down the underlayment will be one of the fastest parts of the entire roofing process. Measure the deck from the bottom to top for the number of courses of paper. Roofing felt nails are made of galvanized steel or aluminum, which resists corrosion better than standard steel staples. The hotdipped method results in a thicker layer of zinc that lasts longer, so they are preferred. That being said, you can expect a small, 5-pound box of smooth shank galvanized steel roofing nails to cost around $10. This provides short-term protection and serves as a waterproof so that water or moisture does not move below the tiles or shingles. Nail every 8 to 12 and approximately 1-1/2 in from the outer edge. Please refer to our Legal Notices for U.S.A. or our Legal Notices for Canada. Unlike selfadhering underlayments, such as ice and water protector, felt underlayment needs to be fastened in place with nails. Roof felt is often called tar paper and is commonly used in similar ways, however, they are different. Use four roofing nails per shingle, as indicated on package instructions (six nails in high-wind areas). Copper is strong and naturally resists rust and corrosion. Tar paper is infused with tar, and roofing felt with a bituminous substance granted, a semantic difference as both are petroleum-based products. The kind of nails youll use for your roofing felt will depend on the project youre working on. Staples also have lower holding strength when compared to nails. They cost less per square foot to install than nails, making them a good choice for those working with limited funds. Smooth application of the roofing paper will help you achieve a smooth installation of the shingles. The most common size is 3/8 inch diameter with a 1-1/2 or 2-inch length. Use only plastic cap, corrosion-resistant nails or staples with plastic caps. 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. They are also available in both hand-drive and pneumatic versions. Avoid using cement on the roofing felt, especially if you plan to re-shingle the roof that day. Not only is it tedious to yank these nails out, but their zinc coating will also be worn. The M12 also has a functional belt clip which makes it easy to stow and free up your hands. $7.18 $ 7. Roofing Felt that exceeds the scuffed area by 6" (152 mm) 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. Simply put, smooth shank nails have a smooth shank. 5. Tack about every 4 on gable edges and 8 or so everywhere else. On low slope roof decks between 2/12 and 4/12, the recommended overlap for roofing felt is a minimum of 19-inches. 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. Have a helper ready to assist with this step, and take care to get the lines straight and clean. We have the following; For galvanized roofing shingles, they make use of a 16 gauge shank. 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. For budget-conscious homeowners, roofing staples are the more affordable option. Roofing nails are the most common type of fastener used to attach asphalt shingles to the roof deck. In addition, staples create a neater finished look. The first course commonly extends past the lower edge of the sheathing by 1/2 or to cover the drip edge. And while they may seem pretty straightforward, there are various factors to consider when choosing the suitable roofing materials and methods for your project. A typical roll of 15-pound felt is 36 wide and 144 long and covers 432sqft. Jewelry Box Felt Liner, A4 Size (8.3" x 11.8", Black) 4.6 out of 5 stars 2,348. The most common include galvanized roofing nails and aluminum roofing nails, but you can also find copper and stainless steel roofing nails. A greater overlap provides more protection but may cause problems with spacing and fastening upper courses relative to sheathing seams. felt application we use plastic cap nails with the Bostitch cap nailer. Nail shank diameter should be at least 11-12 gauge for roofs. Although roofing staples are designed to be strong, they are not as strong as nails. If your building codes require thicker sheathing, youll need 1 -inch nails. 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. Roofing Nails Best Seller Grip-Rite #12 x 1 in. . The Hillman Group 42041 Galvanized Roofing Nails, 1-Inch, 100-Pack. 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) Most of the time, staples do not hold down the roofing felt paper or materials well enough in such areas. A 2d nail is 1 inch long, for example, while a 16d nail is 3 1/2 inches long. The size and complexity of the roof decking affect how long the task will take, but regardless of size, most felt installs are similar. However, both fastening systems are durable and will last for many years with proper care and maintenance. Where a roll ends and a new one is begun, the two rolls should be overlapped by four inches. Choosing longer rolls will allow you to cover more roof surface with fewer seams. That depends on the exposure and coverage of your shingles. Aside from the lightweight of the roof staples, it is highly inexpensive and cost-effective, which is one of the reasons why most individuals or companies prefer to use them. Use the nails with or without plastic caps. Share this Post: Back to Home. The nails should provide a minimum of 40mm penetration into the rafter, so a nail length of 65mm is generally recommended. Measure the length from edge to edge and the eave to ridge, and multiply the values for the area of half the roof. -A 5/12 roof deck 4x 8 is 32sqft x 1.10 = 35.2sqft. This website uses cookies to provide necessary functionality and to improve your online experience. Fasteners should be about 8 apart in the bottom 3/4 of the paper. Double that value and you have the full roof area. Nail the felt in using 0.59 inch (15 mm) galvanized clout nails. However, you may find they are more expensive. Even though nails also hold roofing materials in place, staples are often preferred because they have a solid visible grip. Staples can be used for tacking it down, but not recommended to hold. These factors above determine if your nail or staple underlayment is good enough to hold your roof. For all Owens Corning shingles, roofing nails should penetrate into the wood deck by a . Running a flat bottom shovel along the roof decking will help you find any stray nails that should be pulled. 5 Energy Efficient Roofing Materials To Use. In terms of durability, felt nails are more durable than staples. 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. Type 316 Stainless Steel Nails - These are what you should be using on any new roof build involving an exterior wood product. Roofing nails with gaskets are intended for metal roofs. 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. Ensure theyre long enough to penetrate through the felt and the roof decking. 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. This is because each nail needs to be driven individually into the roof. Rolled Roofing Basics. They are waterproof or water-resistant and provide additional protection and a barrier against moisture penetration. Bob Haring has been a news writer and editor for more than 50 years, mostly with the Associated Press and then as executive editor of the Tulsa, Okla. As a result, they are less susceptible to jamming and easily reload. By using this website you accept our use of cookies and the. Whats The Difference Between Staple And Nails? Sheathing that gets wet before the roofing material can go on should be allowed to dry thoroughly before continuing. 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. Square cap nails are typically used for fastening felt underlayment and not asphalt shingles. Start at the lower gable edge of the roof deck and work upward. The two main types are roofing felt 15 and 30. What Size For Roofing Felt? With higher coverage, youll lay down fewer shingles in a square and therefore use fewer nails. This is because a roofing nail has high holding power, unlike its counterpart. Some suggest you fill this hole with roofing cement, but this repair option must be done carefully to maintain the roofs water-shedding performance. Cut it at the opposite gable edge, and roll out and staple the next course with the desired overlap. FREE delivery Tue, Feb 21 on $25 of items . There are two ways to measure the size of a roofing nail diameter and length. Under most building codes in North America, 12-gauge is the minimum thickness of nail allowed on a roof. Felt nails have a more secure grip on the paper backing of the roll. -A 3/12 roof measuring 20x48 per half is 960 for a total area of 1920sqft. Roof Felt Underlayment to Protect Your Home From the Elements Felt nails are usually made from galvanized steel, which is corrosion-resistant. Remember to follow appropriate safety practices when working from ladders or on roofs. Common nails, or even wood screws, may be acceptable nails for OSB roof sheathing. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. It is required to block any rain that gets under or between shingles from penetrating into the wood decking. Arrow 1/4-Inch T50 Monel Rust Proof Staples, Building Code [IRC2018 Table R905.1.1(2)] requires two layers of underlayment for low-slope roof decks between 2/12 and 4/12, Local Codes may require it for slopes greater than 4/12, Many home and roof warranties require felt paper, NRCA (National Roofing Contractor Association) recommends bitumen, asphalt, tar, or synthetic felt for asphalt shingles, The NRCA recommends water-resistant underlayment for roof slopes greater than 3/12, Roofing felt helps to prevent pitch, uneven or sharp edges, and nails from damaging shingles, Some shingle warranties are void if felt isnt used, Necessary to meet Class A fire rating with some shingles, Provides additional protection to the roof decking against moisture penetration, When removing old shingles, fully remove and replace the old felt with new felt, Made of tar, asphalt, or bitumen-saturated organic or fiberglass substrate felt paper, Commonly used for slopes greater than 3/12, Water-resistant and breathable, not waterproof sheds moisture, doesnt trap it, 15-pound is lighter and thinner, and easier to damage; it has a permeability rating of 5, 30-pound is thicker and stiffer, and more resistant to damage; provides greater protection, Must overlap 19-inches or more on a low slope, 2/12 to 4/12, to form a double layer on the whole roof deck, On slopes greater than 4/12 the courses of felt should overlap at least 2-inches, Commonly fastens with staples or in high wind areas with plastic capped nails or plastic wind-strips, Compounds leach out over time and with sustained exposure to heat it becomes more absorbent, Manufactured from polyethylene or polypropylene, plus fiberglass in an asphalt-saturated base layer, Equivalent to felt but withstands higher temperatures, Lighter and stronger than felt, wrinkle-free, and may have a non-skid coating that is slip-resistant even when wet, Resistant to moisture, mildew and fungal growth, and UV damage, Can be left weather-exposed for 6-months or more, Overlap depends on the slope and manufacturers instructions, Fastens to deck with roofing nails or plastic cap nails staples arent recommended, May void warranties for some asphalt shingles, Polyester or polyethylene layer bonded to a weather-resistant non-skid upper layer, May have a moisture-resistant polymer film and/or a mineral coating melded to the upper layer, Typically self-adhering with a peel-off membrane protecting the adhesive side, Rubber-like material will self-seal around nails and staples, making it waterproof, Very flexible for irregular surfaces and different temperature extremes, May be designed to resist high-temperatures up to 250F, May be fiberglass-reinforced or polymer-modified for strength and elasticity, May have a selvedge edge or sticky strip along the upper edge to form a stronger watertight seal with the overlapping upper course, Typically more expensive than other underlay treatments. The information on this website is subject to change without notice. IKO manufactures products for specific areas in North America. Though they vary greatly in material, size and type, all roofing nails share one helpful characteristic: a diamondshaped point. There are fewer requirements for these nails than those used to secure shingles. Ultimately, it is best to refer to your building codes and roofing manufacturer for more specific guidance. 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. 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. Begin the next course from the edge just cut, moving up to the next chalk line. This is because staples are more likely to rust and break over time. You may find roofing nails identified by their penny length. Package NOTE: Not all products featured will be available in your area. Of course, as your nails will be on the exterior of a home, they must have rust and corrosion protection. The length of nail you use depends on the thickness of the sheathing and shingles you use. A nail gun is the best way to install roofing felt nails. Using roofing nails and roofing staples are common methods. This should be laid before the first felt is applied. A roof felt is a moisture barrier made of natural and synthetic materials. After this, lines should be snapped every 34 as you move up the roof. Copper nails are most often used on roofs with copper flashing and accessories. The most distinguishing feature of a roofing nail that sets it apart from other types of nails is the size of its head. It effortlessly discharges up to 1500 staples per single 1.5Ah battery charge and has a power adjustment for different materials. The chalk line provides a parallel reference line for aligning the felt courses. Nail shank diameter should be at least 11-12 gauge for roofs. (Explained), Or Drywall For Ceiling (All You Need To Know), How To Overlap Or Hang Drywall On 45-Degree Corner? Penetration. What size nails for OSB sheathing? Rolls of felt are 36 wide x 144 long for 15# and 72 long for 30#. Continue along the roof to the other end and trim the felt flush at the end with a utility knife. Another quality is its ability to withstand intense exposure to the sun over a long period. Therefore, settling to use any of your options depends mainly on the slope of the roof of the building they are being installed on. 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. When nailing shingles, proper penetration into the roof deck is essential to ensure the nail and shingle remain secure. For larger projects, youll need to use bigger nails so that they can better support the weight of the roofing felt. You can get away with using regular nails if working on a smaller project, such as repairing a leaky roof. Felt provides a breathable, water-resistant membrane that helps shed moisture that makes it past the shingles. Measure up the roof and snap chalk lines where the upper edge of each course will go. Due to these, Read More Plywood Under Deck Boards! Many metal roofing dealers specify minimum of 7/16" sheathing. There are certain qualities that roofing felt underlayment must possess. Call the team on 01752 692760 or use the . High wind areas and other types of shingles may need more. In addition, both require similar tools for installation. For example, when using Cambridge shingles, youll use roughly 240 nails, because of their Advantage size. 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. Stainless steel nails are best used for slate and ceramic roofs or asphalt shingle roofs in coastal climates. However, this doesnt rule out staples entirely. Starting at the eave, a 19-inch (483 mm) strip of underlayment shall be applied parallel with the eave and fastened sufficiently in place. Of course, if you find yourself overwhelmed by the planning, preparation, or execution, you can reach out to professionals in your area. However, felt nails edge out staples in terms of cost, hold, durability, and quality. Staples are used with a variety of roofing materials.