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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. Easier roll-out with less sticking. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. If you need to install new roof decking or OSB, youll need to nail it to the roof truss. Use four roofing nails per shingle, as indicated on package instructions (six nails in high-wind areas). The most distinguishing feature of a roofing nail that sets it apart from other types of nails is the size of its head. They are widely used and have been recognized as effective methods of holding roofing felt or underlayments and can be used for several small-scale buildings or larger building projects. Repeat until the roof is covered. In addition, both require similar tools for installation. The puncture must be complete so that the whole diamond tip is past the wood. According to BS 5534, the nails used to fix battens to rafters should usually have a diameter of at least 3.35mm. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. Underlayment, also known as roofing felt or tar paper, is a layer of protection that roofers install between your roofing deck and the roofing shingles or tiles. The actual process of putting down the underlayment will be one of the fastest parts of the entire roofing process. They are also less likely to leave behind unsightly marks on your top. Due to the low slope, the felt needs to be doubled. Successive courses repeat the 19-inch overlap. How to Nail Roofing Shingles | Owens Corning Roofing Staples can be used for tacking it down, but not recommended to hold. The ridge cap used on this roof . 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. Overlaps will typically be minimum 50mm and will depend upon the slope of the roof. If required by code, wind conditions, or just regular practice, use plastic capped roofing nails. 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. Staples also have lower holding strength when compared to nails. Double that value and you have the full roof area. Installing New Shingles Over Old Shingles | DoItYourself.com The paper should then be nailed in or stapled every three to four inches across. 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. Some roofers prefer to attach felt underlayment with one-inch roofing nails ,or special nails with plastic washers, but most codes allow staples, which are easier to drive. Ideally, the roof should be done when there is a forecast for several days without a lot of rain. Roof nails are available in 12-, 11- and 10-gauge. The nails should provide a minimum of 40mm penetration into the rafter, so a nail length of 65mm is generally recommended. Eugene has been a DIY enthusiast for most of his life and loves being creative while inspiring creativity in others. Nail the felt in using 0.59 inch (15 mm) galvanized clout nails. Tack the next course or layer into place. We have the following; For galvanized roofing shingles, they make use of a 16 gauge shank. Upper lengths of edge flashing should overlap lower lengths by a minimum of 6. Length: 1" - 3". A 2d nail is 1 inch long, for example, while a 16d nail is 3 1/2 inches long. Drip edge flashing has three distinct parts and typically comes in 10 lengths. However, the size differs depending on the application and the local building codes. Roof Underlayment Requirements & Recommendations - is roofing felt Fasteners should be about 8 apart in the bottom 3/4 of the paper. The lower the gauge number, the thicker the nail. Place your nails in a plastic cap or one with nails. 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. Roofing felt nails or staples in time past was quite challenging to distinguish which of the two roofing options is better clearly. By using this website you accept our use of cookies and the. Bitumen is a waterproof mixture of coal-tar pitch or asphalt and other viscous and sticky organic liquids. Still, these rings give the nail extra staying power, or grip, in the shingles and sheathing. Nail metal drip-edge flashing, which bends over the roof and down the edge of the facing board, on all roof edges. 1. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. Package You may be tempted to reuse these to save on costs. #12 x 1 in. Plastic Round Cap Roofing Nail (3,000-Pack) This is helpful when you have a large roofing project. This is because the moisture can cause the staples to rust and break down faster. 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. Shank type: smooth, ring, screw. 8D nails are considered standard for OSB roof sheathing materials. Valley, ridges and hips should have a 6 inch overlap of paper. It helps protect the sheathing and the shingles and commonly has parallel lines printed on it that make shingle placement easier. Rolled roofing (or roll roofing)also known as MSRcomes in rolls of 100 square feet. As you work, the paper can be tacked down in the center so it wont blow away. Clout Nails for Roofing Felt Nails With Larger Flat Head of the face of the lower-course shingle on the other side of the corner. What Type of Nails for Felt/Underlayment? How to Install Felt Underlayment for a New Roof - SFGATE How to Properly Install Roofing Felt on a Shed, Garage or House Table R803.2.3.1 specifies the maximum fastener spacing based on framing specific gravity, exposure category, and wind speed. Of course, as your nails will be on the exterior of a home, they must have rust and corrosion protection. For slopes greater than 4/12 a single layer of felt is acceptable. For asphalt shingle nails, a galvanized roofing nail with at least 12 gauge shank and head diameter 3/8 inch, while the stapler requires a 16 gauge staple gun. Be sure the tar paper lies in flat strips that are absolutely smooth. The roofing felt should be applied in layers that overlap. Tags in normal wind zones. A greater overlap provides more protection but may cause problems with spacing and fastening upper courses relative to sheathing seams. For a 30lb felt, you should use T50 staples which generally have inch wide crowns and a length variation that include , , , and inches. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. 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. Felt nails have a higher holding power compared to staples. Fasten the field area in the middle of the roll a minimum of 24 O.C. It will protect the roof for about a month without shingles, provided it is fastened properly and it isnt too windy. (Must Read This). A ring shank nail is also called an annular roofing nail or corrugated roofing nail. Dry sheathing and felt paper also help ensure a watertight roof in severe climates. Which roofing nails do I need? - Roofing Superstore Help & Advice Before laying roof felt, all rotten decking must be replaced. Or, if a roofs decking has warped or bent, it can pull nails out of place. In addition to these, nail felts are made from steel and used only to secure the roofing felt underlayment. Most of the time, staples do not hold down the roofing felt paper or materials well enough in such areas. Roofers tend to use the roofing nails they already have on hand to install flashing. Back in the day all I used was staples and /or roofing nails now plastic tops . For irregularly shaped roofs, break it down into smaller rectangles or triangles to calculate the areas. 1 (19) 240 (1) 250 . Roll out the first course, align it, tack it down with galvanized nails or staples, and cut it to size. PDF Installation Instructions for Feltbuster High-traction Synthetic - Gaf If youre unsure how to install roofing felt or are just looking for some pointers, this guide is all you need. Square cap nails are typically used for fastening felt underlayment and not asphalt shingles. Use with Dewalt DWTTH700 series, Stanley TRA700 series, or Arrow T-50 5/16, 3/8, or 1/2 staples. 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. Determine the bundles of shingles needed to cover the roof. (Follow Correct Way), What Does A Roof Certification Cover? While this may not be a concern for some homeowners, others may find that staples are not as aesthetically pleasing as nails. The roof decking should be completely clean and dry. Step 11 Repair any areas inside the house that were damaged by the leak, and enjoy your dry house! 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. The numbers refer to the actual weight of the felt. You can also install asphalt shingle roofs using either a staple or nailer. 316 nails have elements of nickel, polymer and chromium . How Long Should Roofing Nails Be? - Home Efficiency Guide 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. Galvanized nails are also available in a variety of lengths and sizes. Galvanized nails are also available in a variety of lengths and sizes. There are a couple of different ways to attach felt. The first course or starter strip is a 19-inch width of felt, and the next course overlaps it fully. Put fasteners at least every 8 inches; some suppliers recommend staples about every 4 inches. Are you looking out for ways of preserving your roof rafters to enable them to stand the test of time? A nail gun can be used to quickly install some nails to the roofing paper wont slide around. Nail shank diameter should be at least 11-12 gauge for roofs. Most professional roofers use staples instead of nails when installing roof felt on larger roofs. 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. Instead of using lighter-weight 15-pound felt, use the heavier 30-pound felt as it will last longer too. The Hillman Group 42041 Galvanized Roofing Nails, 1-Inch, 100-Pack. Fasten drip edge on eaves with galvanized nails and a hammer, about 12 inches apart, before laying roof felt. Overlap the end of a roll about 4 inches with the start of a new roll and fasten both pieces to the decking. On low slope roof decks between 2/12 and 4/12, the recommended overlap for roofing felt is a minimum of 19-inches. NOTE: Not all products featured will be available in your area. #30 Asphalt Saturated Underlayment Benefits. If you have any further unanswered questions or want to know more about the best roofing nails for your project, don't hesitate to get in touch.