what size nails for roof felt

Heavier roll weight. The key difference between a roofing nailer and a framing nailer is the nail size. 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. Of course, if you find yourself overwhelmed by the planning, preparation, or execution, you can reach out to professionals in your area. Besides, the type of underlayment used for roofing material is not much to bother because they are held mainly by many layers of shingles that weigh higher above the roofing felt underlayment itself. This will help keep any moisture from getting under the felt. It will protect the roof for about a month without shingles, provided it is fastened properly and it isnt too windy. You should check with your building code and local bylaws to confirm. Repeat until the roof is covered. For example, if you remove the nail and drive it back into the same spot, your aim wont be perfectly accurate. Limited time deal. In this guide well discuss what roofing felt is, why it is necessary, and the different types of underlayment. This is because there is more surface area for the nail to grip. Nail down squarely (90 degrees) into the deck to secure caps flush to the underlayment. A nail gun can be used to quickly install some nails to the roofing paper wont slide around. Nail every 8 to 12 and about 1-1/2 in from the outer face of the drip edge. Installing the roofing felt does take care, but can go very quickly. Cut it at the opposite gable edge, and roll out and staple the next course with the desired overlap. You may be tempted to reuse these to save on costs. In addition, staples create a neater finished look. There are two ways to measure the size of a roofing nail diameter and length. 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. Or, if a roofs decking has warped or bent, it can pull nails out of place. Aluminum is a weaker metal than steel and copper. Finished Product We'd love to see how your project to replace roofing felt turned out! For the lower . And it has to be through and through, and the diamond tip will go past the wood. Another quality is its ability to withstand intense exposure to the sun over a long period. The information on this website is subject to change without notice. Drip edges on the eaves, any valley liners and all flashing should be installed before the tar paper is laid. 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. Dont confuse these cap nails with gasket roofing nails. Aug 15, 2010. Leave the top portion of the paper loose. Roofing nail lengths are available in one to two inches. Thus, you have to carefully plan the shingle and sheathing thickness and also the length of the nail. 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. 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. If you live in an area with high humidity, you may need to replace your staples more often. Fold the top part of the extended metal down so it is covered by the rake drip edge. Step 11 Repair any areas inside the house that were damaged by the leak, and enjoy your dry house! The best roofing nails for 7/16 sheathing are 3/8-inch to 7/16-inch diameter. Also, you can use an aluminum or copper nail, depending on your location. With that said, lets explore your roofing nail options and which is best for your next roof. These factors above determine if your nail or staple underlayment is good enough to hold your 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 Once this course is laid, you can begin snapping horizontal chalk lines up the roof to ensure straight rows. This means they will last longer and not rust as easily as staples. Start at one of the upper corners of the felt and continue along the perimeter. Package Penetration. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. (A Beginners Guide) DoneContinue, Roofing Felt Nails Or Staples? The most common include galvanized roofing nails and aluminum roofing nails, but you can also find copper and stainless steel roofing nails. Roofing felt nails like cap nails are generally more expensive than staples. Lets pretend the roof design details are conventional and so the roof deck sheathing will be 5/8" to 3/4". 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. In most jurisdictions, building codes require using nails for roof shingles. Nails can pop above the roof surface for a number of reasons. Nail shank diameter should be at least 11-12 gauge for roofs. Tack the next course or layer into place. 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. What Size Staples Required for 30lb Felt? One IKO test found that ring shank nails have 300% more strength than smooth shank nails. Use four roofing nails per shingle, as indicated on package instructions (six nails in high-wind areas). The head diameter is typically a standard 3/8-inch for all roofing nails. A roof certification is a significant component of the overall roof maintenance management and significantly benefits homeowners. For best performance, you should use ring roofing nails that are made of hotdipped galvanized steel. Prevent Ice Dams Although this is admittedly a matter of opinion, many people feel that nails provide a neater appearance than staples. Surface treatment: polish, electro galvanized, hot dipped galvanized or vinyl coated. A tape measure and chalk line are needed for snapping the guidelines on the roof. Two or more people are required to help roll out and straighten the paper during the process. Many metal roofing dealers specify minimum of 7/16" sheathing. #30 Asphalt Saturated Underlayment Benefits. 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. The first course or starter strip is a 19-inch width of felt, and the next course overlaps it fully. Nevertheless, the proper thing to do is always to check the requirements of your local building authority before starting or embarking on a building project. Professional Professional Tools & Support. Leave about 5cm between each nail, and ensure the sheet is pulled tight and sitting in line with the roof. 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. Follow manufacturers instructions when choosing nails. Dont tack the upper edge as it will be tacked down with the overlapping next course. On low slope roof decks between 2/12 and 4/12, the recommended overlap for roofing felt is a minimum of 19-inches. Not felt to timber. (on center) on both head and end laps. Staple guns are much easier to handle or work with; this is an added advantage of staples. Fasteners should be about 8 apart in the bottom 3/4 of the paper. However, in recent years, like in the last two decades, staples have been banned as an option for roofing and shingles because of fear of an incorrect installation. Rolled roofing (or roll roofing)also known as MSRcomes in rolls of 100 square feet. The seams between sheets use nails at 5cm spacing. Roof nails are available in 12-, 11- and 10-gauge. They have a square-shaped head, instead of the more typical circular head you see on other nails. The drip edge protects the edges of the roof deck and is often installed after the underlay is attached. By the end of your read, you should know how to install felt underlayment for asphalt shingles. Unlike selfadhering underlayments, such as ice and water protector, felt underlayment needs to be fastened in place with nails. Fasten drip edge on eaves. HousingHow Roofing Roofing Felt Nails Or Staples? For slopes between 2/12 and 4/12, double the resulting area value and then divide by the area a roll of felt covers. As a result, roof nails can last for over 50 years, and most last for more extended periods provided the building is still standing. Start at the lower edge of the roof, nailing the batten into place at the centre of the rafter. Various nail shank types for different requirements. Cap nails or nails with a 3/8-inch head are also a good choice for roofing felt, as theyre less likely to come loose over time. Aluminum nails are more prone to corrosion, as well as chemical and salt damage, than steel nails. They are easy to install and are unique in their work and functions. It must be covered with waterproofing membrane, usually "roof felt," also called tar paper. This is because a roofing nail has high holding power, unlike its counterpart. 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. 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. Ensure theyre long enough to penetrate through the felt and the roof decking. Specifically, youll need roofing cap nails. The NRCA (National Roofing Contractors Association) recommends a double layer of 15-pound underlayment for roofs between 3/12 and 4/12, and a single layer for decks greater than 4/12. Roofing nails are cleverly designed to help you do a better job. 1 Use a sharp knife to trim that shingle to within about 18 in. The M12 also has a functional belt clip which makes it easy to stow and free up your hands. The layers of felt should be overlapped by 1 inch as you work toward the roof ridge. Note the differences in the specification and length of the fasteners as well as the nail/staple patterns. Unfortunately, when it comes to asphalt shingle roofs, they fall short in having enough holding strength. 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. What Size For Roofing Felt? 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. Mark every 34 or 33 and snap a line across the deck for 2 or 3 overlaps on slopes greater than 4/12. 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 overhang to the next strip should be 3/8 inch. A greater overlap provides more protection but may cause problems with spacing and fastening upper courses relative to sheathing seams. This is a fabric impregnated with asphalt to form a moisture barrier. Divide by 432 or 216 depending on the weight of felt for 4.89 rolls of #15 or 9.78 rolls of #30 felt. Corrosion resistant to ensure they last over time, and for use where strong joints are required. Roofers seek to use just the right length of nail so that the decking (or OSB) is completely punctured by the nail. The paper should then be nailed in or stapled every three to four inches across. 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. Staples also provide great finishing outlooks on your roofing or other building projects. 2. Not only is this roll affordable, it's also slip-resistant. Galvanized nails are also available in a variety of lengths and sizes. 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. Running a flat bottom shovel along the roof decking will help you find any stray nails that should be pulled. Clout nails should be 15mm large head clout nails. 2004-2023 IKO Industries Ltd., IKO Industries, Inc., and their affiliated and related entities. The puncture must be complete so that the whole diamond tip is past the wood. While nails are mostly used with asphalt shingles, staples can be used with various roofing materials such as fiberglass mat, roll roofing, and thatch. 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. The felt should be secured every six inches with nails or staples. Its working rate is prolonged but heavyweight, making work tiring. Shed Roof vs. Gable Roof Comparison Guide. Where a roll ends and a new one is begun, the two rolls should be overlapped by four inches. The most common shingle roofing nail size is 3/8 inch diameter with a 1-1/2 or 2-inch length. Perhaps they were underdriven in the first place. Roof felt is often called tar paper and is commonly used in similar ways, however, they are different. At the gable ends trim flush to the decking or leave 1/2 to 1 to wrap the edge when installing the drip edge. Nails and staples are standard roofing underlayment options that you can use on all building products. This is because the nails are small and blend in with the paper backing of the roll. Roofing nails that are 11- or 10-gauge are also allowed by most building codes as they are thicker and sturdier. 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. Smooth application of the roofing paper will help you achieve a smooth installation of the shingles. The International Building Code requires that roofing nails have a minimum 12-gauge shank and a 3/8-inch diameter head. Ultimately, it is best to refer to your building codes and roofing manufacturer for more specific guidance. Due to these, Read More Plywood Under Deck Boards! Roofing staples have a broad, flat head that helps to keep them in place and prevent them from pulling through the roofing material. It is required to block any rain that gets under or between shingles from penetrating into the wood decking. There are fewer requirements for these nails than those used to secure shingles. As a result, most local building authorities have banned staples for roofing. However, the process can be tedious, as you must constantly stop and reload the nail gun, adding more time to your roofing project. The gasket is rubber, not plastic. Here is what a roof certification letter encompasses. As its many names suggest, this type of nail has rings along the shank. 320 nails will be needed to install a square of standard 3-tab shingles, assuming four nails per shingle and 80 shingles per square. Place your nails in a plastic cap or one with nails. They cost less per square foot to install than nails, making them a good choice for those working with limited funds. We have the following; For galvanized roofing shingles, they make use of a 16 gauge shank. This is because nails create a stronger bond than staples, making the roof more resistant to high winds and other severe weather conditions. While all tar paper comes in rolls, you do have some control of what size roll you will purchase. Conclusion Choosing the right roofing nails and driving them properly is essential for getting the best performance out of your roof. Galvanized nails are also available in a variety of lengths and sizes. Some roofing felts are actually glued down. The numbers refer to the actual weight of the felt. You can learn more about the sizes of staples here. The two main types are roofing felt 15 and 30. Roofing nails should be 1-1/4 to 2 inches long to ensure that it sufficiently penetrates and embeds in the roof sheathing. It is important to note that local building and fire codes may require cap nails instead of staples, so check the fine print. This can be done prior to tacking or afterward. When you get to an end shingle in a course, nail it in place so its edge overhangs the corner. 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. For all Owens Corning shingles, roofing nails should penetrate into the wood deck by a . . Some roofers recommend laying a strip of adhesive rubberized membrane over the drip edge at the eave as an added protection. This is essential in windy conditions or in areas that experience severe weather conditions. Staples are also not as durable as nails and are more likely to come loose in high winds. Put fasteners at least every 8 inches; some suppliers recommend staples about every 4 inches. Do not simply hammer the nail down, renail it in the same spot, or use the same shingle. Roof felt is available in weights of 15 or 30-pounds per 100sqft. The overhang to the next strip should be 3/8 inch. Both felt nails and staples require minimal maintenance. Start the roof felt at one bottom corner of the roof. The most distinguishing feature of a roofing nail that sets it apart from other types of nails is the size of its head. Copper nails are most often used on roofs with copper flashing and accessories. However, you may find they are more expensive. Sheathing that gets wet before the roofing material can go on should be allowed to dry thoroughly before continuing. Mold and mildew will result and you could wind up having to rip off the roof and install a new one. 8D nails are considered standard for OSB roof sheathing materials. IKO manufactures products for specific areas in North America. Nails will also be required for any roofing project. Its not wise to attempt to reuse them, as they may cause problems on the new roof. 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. This article will tell you how to install, Read More Roof Sheathing Horizontal Or Vertical (Must Read)Continue, Its one thing to decide on anchoring Newel posts to the foot of your stairs and another to know the right distance, Read More This is How Far Apart Should Newel Posts Be!Continue, Plywood is a type of wood made from several stacks of other woods. Installing roof felt is a two-person job. Continue unrolling and tacking until you near the other gable edge. However, the cost varies depending on the size and brand of the product. Pack Size. They are also available in both hand-drive and pneumatic versions. If you are on a budget or are looking for a fastening system that is easier to install, staples may be the right choice. When ridge vent installation is performed correctly, the vent increases the home's energy efficiency and extends the life of the roof. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. If you were considering using screws for their extra security, consider ring shank nails instead. 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. 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. Of course, as your nails will be on the exterior of a home, they must have rust and corrosion protection. By Maria Goudiss. Once you understand what it does, and you know which one you need, you are ready to lay the underlayment for your roof. 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 . Proper roofing practices call for a plywood roof deck at least one inch thick, 3/4-inch galvanized nails, and 3/8-inch head nails. For example, you will need a roofing air nailer for felt nails and a roofing staple gun for staples. For nail spacing requirements, an online calculator will give you a breakdown of the minimum nails per square footage that is required for your roof. The T-50s are compatible with most brands of staple guns or hammers. The paper should then be nailed in or stapled every three to four inches across. Synthetic or non-bitumen underlay has become a popular choice with roofers over the past decade. Staples are used with a variety of roofing materials. Paper can be fitted around vent pipes by cutting a slit and then putting it over the pipe. Unroll the first course beginning at one gable edge and rolling to the opposite edge. For steel, this means stainless steel or galvanized steel. 18 ($1.06/Sq Ft) $11.99 $11.99. When nailing shingles, proper penetration into the roof deck is essential to ensure the nail and shingle remain secure. Different roof slopes require different protection for asphalt shingles. Ideally, the roof should be done when there is a forecast for several days without a lot of rain. Installing a roof is much more than just nailing shingles onto some boards. For low slope roofs mark every 17 and snap a chalk line from gable to gable. Staples are faster but lack the holding power of nails. It is versatile, strong, and affordable. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. The 30-pound roll is 36 wide by 72 long and covers 216sqft. Since retiring he has written freelance stories and a weekly computer security column. 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. Felt nails have a higher holding power compared to staples. The roofing nails outweigh the roofing staples durability, holding power, installation, extended use, and compliance with local building authority codes. How Long Are Roof Nails. The heavy-duty felt or paper is saturated or coated with bitumen. There will be a tiny gap on one side of the nail or the other. By using this website you accept our use of cookies and the. Roofing felt nails or staples are effective roofing methods or options that can go well with very soft materials. Even though nails also hold roofing materials in place, staples are often preferred because they have a solid visible grip. For most homeowners, aesthetics are essential when choosing a fastening system. Continue along the roof to the other end and trim the felt flush at the end with a utility knife. Here are some reasons why felt paper is necessary: There are three main types of underlayment applied to roof decks prior to asphalt shingles and other roof coverings. They may or not allow staple roofing felt. However, both fastening systems are durable and will last for many years with proper care and maintenance. This is important since asphalt is a relatively soft and flexible material. Secure the shingles with the roofing nails. However, this is a detriment to the roofs performance. This makes them the better option for most people. Tags They are waterproof or water-resistant and provide additional protection and a barrier against moisture penetration. (Must Read This). 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. With higher coverage, youll lay down fewer shingles in a square and therefore use fewer nails. The three types are: Asphalt, tar, or bitumen-saturated felt, Synthetic or non-bitumen underlay, and Rubberized asphalt underlay. This is because the staples are smaller and have a smaller head, which means they pierce the shingle less. Be sure you to use the correct nail length and place it properly. So for the 24 square roof example, you would need 2.4 rolls of synthetic underlayment, or 6 rolls of regular #15 felt. Fasten panels with a minimum of 8d Common (0.131-inch by 2-1/2-inch) nails spaced a maximum of 6 inches on center at supported panel ends and edges. Plywood Under Deck Boards! 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. 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. The next step is to cap the ridge. While this may not be a concern for some homeowners, others may find that staples are not as aesthetically pleasing as nails. Roofing nails are the most common type of fastener used to attach asphalt shingles to the roof deck. It is quicker to install and can withstand winds and extended exposure better than felt. 4. It is important to note that the nail and staple roofing felt have these outstanding qualities. Please refer to our Legal Notices for U.S.A. or our Legal Notices for Canada. Roof Felt. This provides short-term protection and serves as a waterproof so that water or moisture does not move below the tiles or shingles. For roofs with slopes greater than 4/12, a minimum overlap of 2-inches between courses is required. Share this Post: Back to Home. Install the drip edge, so it projects past the ends of the eaves by about 3/4 at the gable or rake end. If your building codes require thicker sheathing, youll need 1 -inch nails. Today, the penny system refers specifically to nail length. Multiplied by 1.10 is 2112sqft. It starts with installing solid decking, usually plywood or oriented strand board, but that is not waterproof. Tack about every 4 on gable edges and 8 or so everywhere else. 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. This is because the nails are made of a stronger material that can withstand more wear and tear. Cost is an essential consideration for home improvement projects. 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. Synthetic Roofing Felt, do not use nails or staples without caps. They can also be unsightly if they rust or break over time. You may find roofing nails identified by their penny length. This makes it 320 nails per square foot. 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). 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. Step 4 Prepare for the Shingle Installation and water shield should also be installed a minimum of 2 ft. past the inside bearing wall of the structure,so check the size of your overhang/soffit,and 6-8" of wall thickness,and calculate what you need by adding 2 ft. to the measurements,you`ll find in most cases ,1 . Roofing felt products should not be glued to the decking in lieu of using nails or screws. -A 5/12 roof deck 4x 8 is 32sqft x 1.10 = 35.2sqft. The most common width is 36", although they are sometimes available in other sizes. Such factors include the nail spacing requirements of the total area of your roof and the slope or grade of your roof. Screws leave small gaps in the material they are driven into, and this may be enough to allow for a leak. If you are not sure what size of nails to use for your project, you can always consult the building department in . There are certain qualities that roofing felt underlayment must possess. There are applications where felt is necessary and others where it is not. Lay it over metal flashing edges around vents and pipes. The sun makes the felt brittle and more susceptible to tearing, and rain causes it to ripple. Most roofers use four nails per shingle and five nails for each roofing felt square. There should be no wrinkles or other spots that could catch moisture and cause problems. Similarly, 19/32 OSB roof sheathing would be 8d common, box or casing nails at 6 on center at the panel edges and 12 on center in the field OR 2 16 gage staples at 4 on center at the panel edges and 8 on center in the field. [4] 4. Estimating your roofing materials is key to your success, so youll want to know how many nails youll use in a square. The roof leg has one to three ridges to slow moisture movement, the smooth vertical leg sheds water, and the kick-out pushes it away from the facia. Even if it is imperceptible to you, water will find it. 5 Energy Efficient Roofing Materials To Use. There are a couple of different ways to attach felt. Choosing longer rolls will allow you to cover more roof surface with fewer seams. For more tips on roof installation and tools, read our article about choosing between a nail gun and a roofing hammer.

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