This is because the moisture can cause the staples to rust and break down faster. Exposed nails are those with visible nail heads. 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. Tar paper is infused with tar, and roofing felt with a bituminous substance granted, a semantic difference as both are petroleum-based products. 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. Staples are used with a variety of roofing materials. The paper should then be nailed in or stapled every three to four inches across. Roofing nail lengths are available in one to two inches. Roof slopes from two units vertical in 12 units horizontal (17-percent slope) and . The synthetic underlay has greater water-resistance and the no-slip coating offers better traction for installation safety. An 8d nail, for example, cost 8 pennies for 100. This website uses cookies to provide necessary functionality and to improve your online experience. A ring shank nail is also called an annular roofing nail or corrugated roofing nail. . Rolled roofing (or roll roofing)also known as MSRcomes in rolls of 100 square feet. Ultimately, it is best to refer to your building codes and roofing manufacturer for more specific guidance. Sheradised Square Twist Nails are invalueable when working with timber construction. For budget-conscious homeowners, roofing staples are the more affordable option. Even though nails also hold roofing materials in place, staples are often preferred because they have a solid visible grip. Synthetic Roofing Felt, do not use nails or staples without caps. Square cap nails may have a smooth or coiled shank. This can cause your roof to leak. 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. Choosing longer rolls will allow you to cover more roof surface with fewer seams. The added depth that roofing nails provide makes them less likely to come loose over time. Screws leave small gaps in the material they are driven into, and this may be enough to allow for a leak. For the lower . The most common include galvanized roofing nails and aluminum roofing nails, but you can also find copper and stainless steel roofing nails. 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. Remember to follow appropriate safety practices when working from ladders or on roofs. 1. Staples are also not as durable as nails and are more likely to come loose in high winds. Also, you can use an aluminum or copper nail, depending on your location. Synthetic or non-bitumen underlay has become a popular choice with roofers over the past decade. $3.19 $ 3. The angled corner should be flush to the facia while the outer edge of the kick-out stands out between 1/4 and 1/2 to keep runoff away from the structure and into the gutter. Both felt nails and staples are great fastening systems for roofing projects. Perhaps they were underdriven in the first place. 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. Where the felt isnt long enough to complete a course there should be a minimum of a 3-inch overlap. The most distinguishing feature of a roofing nail that sets it apart from other types of nails is the size of its head. (Explained), Or Drywall For Ceiling (All You Need To Know), How To Overlap Or Hang Drywall On 45-Degree Corner? Head diameter According to the IBC, the minimum head diameter for a roofing nail that's in compliance with IBC guidelines is 9.5mm. Other Materials The main drawbacks are cost and the need to use capped fasteners. Roofing Felt that exceeds the scuffed area by 6" (152 mm) A 2d nail is 1 inch long, for example, while a 16d nail is 3 1/2 inches long. 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. . Both felt nails and staples require minimal maintenance. For roof slopes greater than 4/12, multiply the area by 1.10 to account for the 2 overlap and potential waste. Back in the day all I used was staples and /or roofing nails now plastic tops . The gasket is rubber, not plastic. Conclusion On the other hand, staples are larger and more visible. Copper is strong and naturally resists rust and corrosion. 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. According to BS 5534, the nails used to fix battens to rafters should usually have a diameter of at least 3.35mm. This is a fabric impregnated with asphalt to form a moisture barrier. By using this website you accept our use of cookies and the. Using roofing nails and roofing staples are common methods. Can Roofing Felt be Glued? Copper nails are most often used on roofs with copper flashing and accessories. The numbers refer to the actual weight of the felt. Many manufacturers offer 10-year guarantees for felt. Leave the top portion of the paper loose. Jewelry Box Felt Liner, A4 Size (8.3" x 11.8", Black) 4.6 out of 5 stars 2,348. The three types are: Asphalt, tar, or bitumen-saturated felt, Synthetic or non-bitumen underlay, and Rubberized asphalt underlay. When nailing shingles, proper penetration into the roof deck is essential to ensure the nail and shingle remain secure. Step 11 Repair any areas inside the house that were damaged by the leak, and enjoy your dry house! To determine how much felt is required for a roof, find the area of the roof deck to be covered. Nails will also be required for any roofing project. 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. Measure the size of your roof in square feet. And it has to be through and through, and the diamond tip will go past the wood. This is because the nails are small and blend in with the paper backing of the roll. Roofing nails should be 1-1/4 to 2 inches long to ensure that it sufficiently penetrates and embeds in the roof sheathing. If there are hips, valleys, or dormers, increase the total by 10 to 25%. It will protect the roof for about a month without shingles, provided it is fastened properly and it isnt too windy. 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. What Type of Nails for Felt/Underlayment? Unfortunately, when it comes to asphalt shingle roofs, they fall short in having enough holding strength. 320 nails will be needed to install a square of standard 3-tab shingles, assuming four nails per shingle and 80 shingles per square. Fortunately, galvanized roofing nails and steel nails pass the building code test. We'd recommend nailing from the centre of the edge of the sheet and working outwards. Measure the deck from the bottom to top for the number of courses of paper. Metal Mesh in Drywall: All You Need To Know, Does Drywall Tape Need To Be Completely Covered? There will be a tiny gap on one side of the nail or the other. 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. 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 versatile, strong, and affordable. The M12 also has a functional belt clip which makes it easy to stow and free up your hands. Installing the roofing felt does take care, but can go very quickly. You can get away with using regular nails if working on a smaller project, such as repairing a leaky roof. 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. Below we will explore an in-depth analysis of the two fastening systems to help you select the right one for your needs. 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. Divide the total footage by 100 to determine the number of "squares" in the roof. The overhang to the next strip should be 3/8 inch. Tack the gable edge and tack the bottom edge and mid-line as you unroll. However, the cost varies depending on the size and brand of the product. Make sure the nails are embedded securely into the felt and wood sheathing. For slopes greater than 4/12 a single layer of felt is acceptable. Specification Material: carbon steel, stainless steel, aluminum, copper. 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 . It must be covered with waterproofing membrane, usually "roof felt," also called tar paper. Local codes may have different requirements, and shingle manufacturer warranties often specify underlayment requirements, so check them out too. Uneven strips and wrinkles can allow dust, moisture and mold to develop. This is because they are faster and easier to install than nails. When protected by well-maintained shingles, the underlay will last between 20 and 30-years, or as long as the asphalt shingles. Multiply the width by the height for the square footage of each section, then add the . They can also be overdriven or even underdriven. It is important to note that the nail and staple roofing felt have these outstanding qualities. Overlap the end of a roll about 4 inches with the start of a new roll and fasten both pieces to the decking. Roofing felt is made of natural or synthetic materials such as wood cellulose, recycled cloth, fiberglass, or polyester. A greater overlap provides more protection but may cause problems with spacing and fastening upper courses relative to sheathing seams. There are two methods of galvanizing nails: hotdipped and electrogalvanized. Then, fix the top edge of the felt just below the apex of the shed's roof, using galvanized steel clout nails at 4" or 10cm intervals. 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. Nail shank diameter should be at least 11-12 gauge for roofs. This is because the nails are made of a stronger material that can withstand more wear and tear. Choosing the suitable fastener for your roof or shingle is dependent on four factors; the type of fastener, correct installation, placement, and holding strength. They are made from galvanized or stainless steel for durability and rust resistance. Directly answering if you can use staples for roofing felt depends on your local building authority and fire codes. Roofing felt nails are made of galvanized steel or aluminum, which resists corrosion better than standard steel staples. A roof felt is a moisture barrier made of natural and synthetic materials. Before laying roof felt, all rotten decking must be replaced. However, both fastening systems are durable and will last for many years with proper care and maintenance. There are two ways to measure the size of a roofing nail diameter and length. How to Install Owens Corning Roll Roofing, How to Install Ridge Caps for Metal Roofing, Home Building Mentor: How to Install Roof Felt, Warrior Roofing: Roofing Felt Installation Instructions, How to clean a showerhead, according to an expert, How to Put Rigid Foam Insulation on the Roof Before Putting on Shingles. Valley, ridges and hips should have a 6 inch overlap of paper. 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. Stainless steel nails are best used for slate and ceramic roofs or asphalt shingle roofs in coastal climates. Clout nails should be 15mm large head clout nails. Some suggest you fill this hole with roofing cement, but this repair option must be done carefully to maintain the roofs water-shedding performance. . 3. That being said, you can expect a small, 5-pound box of smooth shank galvanized steel roofing nails to cost around $10. Fit felt around vent pipes or other protrusions by cutting it with a utility knife and fastening around the bottom of the vent. Roofing nails that are 11- or 10-gauge are also allowed by most building codes as they are thicker and sturdier. These factors above determine if your nail or staple underlayment is good enough to hold your roof. Unfortunately, it's not rated for fire resistance. Felt is typically 3 feet wide, so that means a roll is approximately 144 feet long. If your building codes require thicker sheathing, youll need 1 -inch nails. Its not wise to attempt to reuse them, as they may cause problems on the new roof. Nail down squarely (90 degrees) into the deck to secure caps flush to the underlayment. The cost of your roofing nails will depend on a few factors, including material, type and length. Instead of using lighter-weight 15-pound felt, use the heavier 30-pound felt as it will last longer too. Felt provides a breathable, water-resistant membrane that helps shed moisture that makes it past the shingles. 2004-2023 IKO Industries Ltd., IKO Industries, Inc., and their affiliated and related entities. Common nails, or even wood screws, may be acceptable nails for OSB roof sheathing. Ideally, your roof will not have any exposed nails, with the exception of the last cap shingle (and those nails should be covered in roofing cement.) FREE delivery Tue, Feb 21 on $25 of items shipped by . The last part of the extended eaves edge flashing is folded back over the rake edge and nailed into place, thus sealing the exposed corner of the drip edge. Recently, things have changed as staples are no longer fancied or used as roofing felt underlayment. Roofing nails are a type of nail that is made specifically for use in the installation of the different parts of the roof, like the roofing felt, the shingles, sheet metal, flashing, or roof tiles. Roof nails go deep into the roofing shingles and the roof decking, providing a firmer grip and preventing the asphalt from sliding around. This article will explore the pros and cons of each technique to help you make an informed decision for your next roofing project. (A Beginners Guide) DoneContinue, Roofing Felt Nails Or Staples? In normal wind zones the nails should be driven at 6.0 O.C. 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. Overlaps will typically be minimum 50mm and will depend upon the slope of the roof. It sheds precipitation while awaiting shingles, protects the shingles from resins and glues leaching from the decking, and acts as a second line of defense against moisture. In addition, both require similar tools for installation. IKO assumes no responsibility for errors that may appear on this website. Cost is an essential consideration for home improvement projects. Use galvanised clout nails to nail the first sheet of felt onto the roof. Dry sheathing and felt paper also help ensure a watertight roof in severe climates. Whatever the cause, its important to fix any nail pops in a roof to prevent damage. Note the differences in the specification and length of the fasteners as well as the nail/staple patterns. Under most building codes in North America, 12-gauge is the minimum thickness of nail allowed on a roof. Leave about 5cm between each nail, and ensure the sheet is pulled tight and sitting in line with the roof. Drip edge flashing has three distinct parts and typically comes in 10 lengths. Product Specs Type: Synthetic Size: 250 feet long by 4 feet wide Fire rating: None. Each run of shed felt should overlap the next by at least 7.5cm. They also go against most building code error codes and local building authority standards. Nail metal drip-edge flashing, which bends over the roof and down the edge of the facing board, on all roof edges. The use of nails for roofing in an area may differ from another, but they are primarily similar; therefore, it is difficult to go against building codes when using roofing nails. Starting at the eave, a 19-inch (483 mm) strip of underlayment shall be applied parallel with the eave and fastened sufficiently in place. 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. This makes it 320 nails per square foot. After this, lines should be snapped every 34 as you move up the roof. Lay it over metal flashing edges around vents and pipes. Roofing felt nails are less visible than staples, which give your roof a neater appearance. Here is what a roof certification letter encompasses. Nails and staples have several significant differences. Roll the first large piece of felt over one side of the roof, allowing the excess to overhang. 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. in normal wind zones. 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. Most building codes regulate that at least a 12 gauge shank with a diameter of 3/8 head be used. They are also available in both hand-drive and pneumatic versions. Tack the next course or layer into place. Point: diamond or blunt. This point is expertly designed to keep the decking intact when it punctures through. 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. By the end of your read, you should know how to install felt underlayment for asphalt shingles. Repeat until the roof is covered. They cost less per square foot to install than nails, making them a good choice for those working with limited funds. 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. Thicker and stronger than other organic underlayments, #30 Asphalt Saturated Underlayment paper offers superior tear strength and more secure footing for roofers, especially in steep-roof applications. As you work, the paper can be tacked down in the center so it wont blow away. If youre unsure how to install roofing felt or are just looking for some pointers, this guide is all you need. Rolled Roofing Basics. If you need to install new roof decking or OSB, youll need to nail it to the roof truss. Felt nails have a higher holding power compared to staples. As a result, roof nails can last for over 50 years, and most last for more extended periods provided the building is still standing. It is required to block any rain that gets under or between shingles from penetrating into the wood decking. When installing thicker shingles, you may need to use a longer nail in order to penetrate the OSB beneath fully. Roofing Nails Best Seller Grip-Rite #12 x 1 in. The standard size for roofing felt paper is categorized into four. The roofing felt should be applied in layers that overlap. They are called 8d common nails or 8-penny nails and can be round-headed, sharp-pointed 11-gauge galvanized steel or the equivalent corrosion-resistant roofing nails. Use only plastic cap, corrosion-resistant nails or staples with plastic caps. Roofing felt is a type of underlayment that professionals install beneath a roofs shingles. Choosing the right roofing nails and driving them properly is essential for getting the best performance out of your roof. These applications are ideal for flat roofs or protective surfaces under roof-level decks. At the gable ends trim flush to the decking or leave 1/2 to 1 to wrap the edge when installing the drip edge. Head: flat round. The heavy-duty felt or paper is saturated or coated with bitumen. On shallow sloped roof, we would suggest the overlap is increased to 75mm.