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. Sheathing that gets wet before the roofing material can go on should be allowed to dry thoroughly before continuing. They are easy to install and are unique in their work and functions. Multiply the width by the height for the square footage of each section, then add the . The most common include galvanized roofing nails and aluminum roofing nails, but you can also find copper and stainless steel roofing nails. Ideally, the roof should be done when there is a forecast for several days without a lot of rain. While nails are mostly used with asphalt shingles, staples can be used with various roofing materials such as fiberglass mat, roll roofing, and thatch. Leave the top portion of the paper loose. For example, you will need a roofing air nailer for felt nails and a roofing staple gun for staples. The quality of the material used is also an important consideration. Have a helper ready to assist with this step, and take care to get the lines straight and clean. Your attic needs to breathe. Roofing felt isnt designed to be left exposed to the elements. Felt nails are less visible than staples. The drip edge protects the edges of the roof deck and is often installed after the underlay is attached. The main drawbacks are cost and the need to use capped fasteners. An 8d nail, for example, cost 8 pennies for 100. Smooth application of the roofing paper will help you achieve a smooth installation of the shingles. Prevent Ice Dams A roof certification is a significant component of the overall roof maintenance management and significantly benefits homeowners. 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. The downside of roof nails is that they are bulkier and prone to multiple jams while working with them. You can learn more about the sizes of staples here. Make sure to expose 5 in. The overhang to the next strip should be 3/8 inch. 8D nails are considered standard for OSB roof sheathing materials. Can Roofing Felt be Glued? Call the team on 01752 692760 or use the . Synthetic Roofing Felt, do not use nails or staples without caps. The standard size for roofing felt paper is categorized into four. Roofing nails should be 1-1/4 to 2 inches long to ensure that it sufficiently penetrates and embeds in the roof sheathing. Measure the width and height of each section separately. This can cause your roof to leak. At intermediate supports, fasten panels 12 inches on center. The installation process for felt nails and staples is relatively simple and can be completed by most people with little experience. You can get away with using regular nails if working on a smaller project, such as repairing a leaky roof. The reason they want you to use felt nails is to prevent blow offs if left exposed or high wind areas. The M12 also has a functional belt clip which makes it easy to stow and free up your hands. Place your nails in a plastic cap or one with nails. HousingHow Roofing Roofing Felt Nails Or Staples? The felt should be trimmed flush with the edge or 1/2 past to wrap the edge when the drip edge is placed. . 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. Roof nails are available in 12-, 11- and 10-gauge. The overhang to the next strip should be 3/8 inch. What Size For Roofing Felt? 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. Square cap nails are typically used for fastening felt underlayment and not asphalt shingles. 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. Is it necessary to use adhesive? Shank type: smooth, ring, screw. Synthetic underlayment comes in 10 square rolls, while regular #15 felt comes in 4 square rolls. Lets pretend the roof design details are conventional and so the roof deck sheathing will be 5/8" to 3/4". Corrosion resistant to ensure they last over time, and for use where strong joints are required. Unlike selfadhering underlayments, such as ice and water protector, felt underlayment needs to be fastened in place with nails. This is because the moisture can cause the staples to rust and break down faster. IKO manufactures products for specific areas in North America. Running a flat bottom shovel along the roof decking will help you find any stray nails that should be pulled. Used for fastening roofing felt for waterproofing or roofing tiles to metal. The puncture must be complete so that the whole diamond tip is past the wood. Screws leave small gaps in the material they are driven into, and this may be enough to allow for a leak. This makes it 320 nails per square foot. Fasten the field area in the middle of the roll a minimum of 24 O.C. Each run of shed felt should overlap the next by at least 7.5cm. (A Beginners Guide) DoneContinue, Roofing Felt Nails Or Staples? Successive courses repeat the 19-inch overlap. If youre unsure how to install roofing felt or are just looking for some pointers, this guide is all you need. If there are hips, valleys, or dormers, increase the total by 10 to 25%. Nails should have a minimum, nominal shank diameter of 11- or 12-gauge, and a minimum head diameter of three-eighths of an inch. . Perhaps they were underdriven in the first place. However, the cost varies depending on the size and brand of the product. 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. What Size Staples Required for 30lb Felt? To calculate the slope or grade of your roof, youll need to measure the rise and run of your roof. Conclusion Different roof slopes require different protection for asphalt shingles. After this, lines should be snapped every 34 as you move up the roof. 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. 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 most pronounced advantage of the staple over the nail is that roofing staple guns can install four staples at once while nail guns can not. A ring shank nail is also called an annular roofing nail or corrugated roofing nail. This means they may lose over time, especially in high winds or severe weather conditions. Galvanized nails are also available in a variety of lengths and sizes. When the shingles are installed the felt is not going anywhere. The answer depends on the thickness of the plywood and the building code. A nail gun can be used to quickly install some nails to the roofing paper wont slide around. And it has to be through and through, and the diamond tip will go past the wood. Valley, ridges and hips should have a 6 inch overlap of paper. Leave about 5cm between each nail, and ensure the sheet is pulled tight and sitting in line with the roof. When you get to an end shingle in a course, nail it in place so its edge overhangs the corner. The average 3-tab shingle needs four nails per shingle. Double that value and you have the full roof area. There are two methods of galvanizing nails: hotdipped and electrogalvanized. The roofing nails outweigh the roofing staples durability, holding power, installation, extended use, and compliance with local building authority codes. Measure the size of your roof in square feet. Roof felt is available in weights of 15 or 30-pounds per 100sqft. This is because the nails are made of a stronger material that can withstand more wear and tear. Drip edges on the eaves, any valley liners and all flashing should be installed before the tar paper is laid. Determine the bundles of shingles needed to cover the roof. If youre using typical architectural shingles and 3/8-inch-thick sheathing, youll need 1inch nails. Recently, things have changed as staples are no longer fancied or used as roofing felt underlayment. 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. 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). 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. The sooner it is protected by shingles, the better. This step is vital to the success of your new roof and must not be shortchanged in any way. Ensure theyre long enough to penetrate through the felt and the roof decking. Consider other underlayment options as needed, such as rubber or tar products. The T-50s are compatible with most brands of staple guns or hammers. Start at the lower edge of the roof, nailing the batten into place at the centre of the rafter. 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. For roofs with slopes greater than 4/12, a minimum overlap of 2-inches between courses is required. They are the most basic type of roofing nail and cheaper than the other two options. Of course, as your nails will be on the exterior of a home, they must have rust and corrosion protection. When nailing shingles, proper penetration into the roof deck is essential to ensure the nail and shingle remain secure. . Install the drip edge, so it projects past the ends of the eaves by about 3/4 at the gable or rake end. Even though nails also hold roofing materials in place, staples are often preferred because they have a solid visible grip. If you were considering using screws for their extra security, consider ring shank nails instead. Construction stapler or plastic washer nails. It also helps the roof sheathing by preventing leaks and extending its lifespan. The longer it is left uncovered, the more it will weather and fade. Roof slopes from two units vertical in 12 units horizontal (17-percent slope) and . Nail metal drip-edge flashing, which bends over the roof and down the edge of the facing board, on all roof edges. Package They can also be unsightly if they rust or break over time. Some suggest you fill this hole with roofing cement, but this repair option must be done carefully to maintain the roofs water-shedding performance. All nails and staples should be placed on the lower half of the paper. (A Beginners Guide) Done. The felt should be secured every six inches with nails or staples. Where the felt isnt long enough to complete a course there should be a minimum of a 3-inch overlap. This moderately-priced roofing nailer holds up to 120 nails per load and allows a variety of 11-gauge (.12 inches) nail sizes ranging from 3/4 of an inch to 1-3/4 of an inch. Because they are less secure than nails, staples are more likely to lose over time. Copper is strong and naturally resists rust and corrosion. Another benefit of roofing staples is that they cause less damage to shingles than nails. Felt nails are more expensive than staples. Follow manufacturers instructions when choosing nails. This is because they are faster and easier to install than nails. In most jurisdictions, building codes require using nails for roof shingles. This can cause your roofing material to lift, making it more susceptible to damage in a storm. For irregularly shaped roofs, break it down into smaller rectangles or triangles to calculate the areas. Rolled roofing is easy to obtain and can be found at all home improvement stores. Staples are typically made from aluminum or other metals that are not as durable. This can be done prior to tacking or afterward. Back in the day all I used was staples and /or roofing nails now plastic tops . Though they vary greatly in material, size and type, all roofing nails share one helpful characteristic: a diamondshaped point. Roof felt is often called tar paper and is commonly used in similar ways, however, they are different. Rolled Roofing Basics. There are three basic types of roofing nails: The shank of the nail is the part of the nail that punctures through the material you are nailing. As a result, they are less susceptible to jamming and easily reload. 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 . 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. Never mount the felt paper on wet sheathing. Not only is it tedious to yank these nails out, but their zinc coating will also be worn. The overlap of 3/8 should be followed consistently for a smooth look once the shingles are installed. When protected by well-maintained shingles, the underlay will last between 20 and 30-years, or as long as the asphalt shingles. Its working rate is prolonged but heavyweight, making work tiring. You can also install asphalt shingle roofs using either a staple or nailer. Roofing nails are available in lengths ranging from one to two inches. Common nails, or even wood screws, may be acceptable nails for OSB roof sheathing. Whatever the cause, its important to fix any nail pops in a roof to prevent damage. 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. The kind of nails youll use for your roofing felt will depend on the project youre working on. 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. The added depth that roofing felt nails provide makes them slower to install. Add 10% to the shingle estimate to account for waste. Avoid using cement on the roofing felt, especially if you plan to re-shingle the roof that day. (Explained), Or Drywall For Ceiling (All You Need To Know), How To Overlap Or Hang Drywall On 45-Degree Corner? It is important to note that local building and fire codes may require cap nails instead of staples, so check the fine print. What size nails for OSB sheathing? This inarguably depends significantly on the type of nails used. Felt nails are usually made from galvanized steel, which is corrosion-resistant. Professional Professional Tools & Support. Unfortunately, when it comes to asphalt shingle roofs, they fall short in having enough holding strength. Be sure the tar paper lies in flat strips that are absolutely smooth. Roofing Nails Best Seller Grip-Rite #12 x 1 in. While this may not be a concern for some homeowners, others may find that staples are not as aesthetically pleasing as nails. 2 1 Overlap the corner by enough to trim the edge of the end shingle properly. Overlaps will typically be minimum 50mm and will depend upon the slope of the roof. The penny system is an old way of classifying nails. removing the shingle and installing a new shingle, choosing between a nail gun and a roofing hammer. These factors above determine if your nail or staple underlayment is good enough to hold your roof. Typically 2 to 3 days will be required for this. Staples can be used for tacking it down, but not recommended to hold. There are various roofing nails available in different materials. Pull the felt tight so that it lies flat and straight. The ridge cap used on this roof . 5 Energy Efficient Roofing Materials To Use. Some roofing felts are actually glued down. He is passionately interested in home improvement, renovation and woodworking. of the shingle tabs where the bottom edge of the tab meets the top of the cutout. Before laying roof felt, all rotten decking must be replaced. As you work, the paper can be tacked down in the center so it wont blow away. Visit the officia. In this guide well discuss what roofing felt is, why it is necessary, and the different types of underlayment. 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. Roofing felt nails or staples in time past was quite challenging to distinguish which of the two roofing options is better clearly. $7.18 $ 7. For best performance, you should use ring roofing nails that are made of hotdipped galvanized steel. This makes them the better option for most people. The rolls are typically either 50 or 100 feet long. They are also less likely to leave behind unsightly marks on your top. ONLY USE 1 diameter plastic cap roofing nails. The first course commonly extends past the lower edge of the sheathing by 1/2 or to cover the drip edge. Limited time deal. A greater overlap provides more protection but may cause problems with spacing and fastening upper courses relative to sheathing seams. Steel makes for strong nails. In your building codes and international building codes, nails may be referenced as fasteners along with staples and screws. The best roofing nails for 7/16 sheathing are 3/8-inch to 7/16-inch diameter. 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. Fixing the nails is simply a matter of removing them, removing the shingle and installing a new shingle. Head diameter: 0.55" - 0.79". The synthetic underlay has greater water-resistance and the no-slip coating offers better traction for installation safety. 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. A 2d nail is 1 inch long, for example, while a 16d nail is 3 1/2 inches long. Sheradised Square Twist Nails are invalueable when working with timber construction. They cost less per square foot to install than nails, making them a good choice for those working with limited funds. Roofing felt nails are made of galvanized steel or aluminum, which resists corrosion better than standard steel staples. Dont tack the upper edge as it will be tacked down with the overlapping next course. In addition, the chances are that You can install staples incorrectly or inaccurately. The most common size is 3/8 inch diameter with a 1-1/2 or 2-inch length. There are two ways to measure the size of a roofing nail diameter and length. Read More What Does A Roof Certification Cover? Dry sheathing and felt paper also help ensure a watertight roof in severe climates. . Nails and staples have several significant differences. 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. Roofing felt on high-traffic roofs, for example, must be able to stand up to a lot of wear and tear. Since retiring he has written freelance stories and a weekly computer security column. Dont confuse these cap nails with gasket roofing nails. Measure the length from edge to edge and the eave to ridge, and multiply the values for the area of half the roof. Clout nails should be 15mm large head clout 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. Due to these, Read More Plywood Under Deck Boards! There should be no wrinkles or other spots that could catch moisture and cause problems. The numbers refer to the actual weight of the felt. Grip the hammer tightly by the end of the handle and hold your thumb at the top of the shaft. They require high skills and concentration when used, and any mistake or inaccurate placement can cause severe damage to the entire roof. Instead of using lighter-weight 15-pound felt, use the heavier 30-pound felt as it will last longer too. According to BS 5534, the nails used to fix battens to rafters should usually have a diameter of at least 3.35mm. The number of nails youll need for your roofing felt will depend on a few factors. A tape measure and chalk line are needed for snapping the guidelines on the roof. With 1000 per box, the 1/4 length is ideal for tacking roof underlayment. Note the differences in the specification and length of the fasteners as well as the nail/staple patterns. It has a heavy-duty, anti-jam stapling mechanism and magazine that loads from the bottom of the handle. It will protect the roof for about a month without shingles, provided it is fastened properly and it isnt too windy. So, with rounding, youll need 10 rolls of 15 pound felt or 20 rolls of 30-pound felt. A roof felt is a moisture barrier made of natural and synthetic materials. This 400g pack of joist hanger nails from Wickes are designed to secure joist hangers in roofing, ceiling, flooring and decking work. At the gable ends trim flush to the decking or leave 1/2 to 1 to wrap the edge when installing the drip edge. However, this is a detriment to the roofs performance. This point is expertly designed to keep the decking intact when it punctures through. Staples are also not as durable as nails and are more likely to come loose in high winds. Overlapping sheet, shed felt adhesive sticks, felt to felt. Nail metal drip-edge flashing, which bends over the roof and down the edge of the facing board, on all roof edges. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. 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. A typical roll of 15-pound felt is 36 wide and 144 long and covers 432sqft. Roofing nail lengths are available in one to two inches. Use only plastic cap, corrosion-resistant nails or staples with plastic caps. The nails should provide a minimum of 40mm penetration into the rafter, so a nail length of 65mm is generally recommended. That is why they are used for additional water tightness in extensive wind areas to reduce the chances of wearing and tearing. The most common shingle roofing nail size is 3/8 inch diameter with a 1-1/2 or 2-inch length. Fasteners should be long enough to penetrate at least 3/4" (19 mm) into wood decks or just . The Hillman Group 42041 Galvanized Roofing Nails, 1-Inch, 100-Pack. Mold and mildew will result and you could wind up having to rip off the roof and install a new one. 3. As a bonus, roofing staplers are easy to handle and do not require many repairs. 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. That being said, you can expect a small, 5-pound box of smooth shank galvanized steel roofing nails to cost around $10. Cut the extended eaves drip edge flashing between the roof leg and vertical leg at a 45 or 90 angle to the rake edge. Head diameter According to the IBC, the minimum head diameter for a roofing nail that's in compliance with IBC guidelines is 9.5mm. Another quality is its ability to withstand intense exposure to the sun over a long period. Staples also have lower holding strength when compared to nails. Measure up the roof and snap chalk lines where the upper edge of each course will go. 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.