Roofing felt is commonly used between roof deck sheathing and roof shingles. Where a roll ends and a new one is begun, the two rolls should be overlapped by four inches. Choosing the right roofing nails and driving them properly is essential for getting the best performance out of your roof. Account for waste. However, the process can be tedious, as you must constantly stop and reload the nail gun, adding more time to your roofing project. A greater overlap provides more protection but may cause problems with spacing and fastening upper courses relative to sheathing seams. Roofing felt is a type of underlayment that professionals install beneath a roofs shingles. All nails and staples should be placed on the lower half of the paper. 320 nails will be needed to install a square of standard 3-tab shingles, assuming four nails per shingle and 80 shingles per square. Roof Underlayment Requirements & Recommendations - is roofing felt IKO manufactures products for specific areas in North America. 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. Choosing the suitable fastener for your roof or shingle is dependent on four factors; the type of fastener, correct installation, placement, and holding strength. Step 11 Repair any areas inside the house that were damaged by the leak, and enjoy your dry house! What Size Of Roofing Nails Should I Use - MasterYourNails.com To install roofing felt, you need nails that have very wide heads to keep the felt . Most roofers use four nails per shingle and five nails for each roofing felt square. Leave the top portion of the paper loose. One IKO test found that ring shank nails have 300% more strength than smooth shank nails. In this case, youll want to use roofing nails made of robust materials such as steel or aluminum. How to felt a shed roof - YouTube Starting at the eave, a 19-inch (483 mm) strip of underlayment shall be applied parallel with the eave and fastened sufficiently in place. Therefore, settling to use any of your options depends mainly on the slope of the roof of the building they are being installed on. The Best Roof Underlayments of 2023 - Picks from Bob Vila The felt should be trimmed flush with the edge or 1/2 past to wrap the edge when the drip edge is placed. Roofing Nails | Nails | Screwfix Whichever material you choose for your nails, remember that roofing nails are on the exterior of homes and therefore the outer surface needs to be corrosion-resistant. (on center) on both head and end laps. There should be no wrinkles or other spots that could catch moisture and cause problems. Do the other side of the roof the same way, also with an overlap at the peak. Most building codes regulate that at least a 12 gauge shank with a diameter of 3/8 head be used. 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. 2004-2023 IKO Industries Ltd., IKO Industries, Inc., and their affiliated and related entities. Many metal roofing dealers specify minimum of 7/16" sheathing. If required by code, wind conditions, or just regular practice, use plastic capped roofing nails. This means they may lose over time, especially in high winds or severe weather conditions. Because they are less secure than nails, staples are more likely to lose over time. The answer depends on the thickness of the plywood and the building code. They have a square-shaped head, instead of the more typical circular head you see on other nails. Be sure the tar paper lies in flat strips that are absolutely smooth. Smooth application of the roofing paper will help you achieve a smooth installation of the shingles. 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. With higher coverage, youll lay down fewer shingles in a square and therefore use fewer nails. Drip edge flashing has three distinct parts and typically comes in 10 lengths. It is versatile, strong, and affordable. There are certain qualities that roofing felt underlayment must possess. Most domestic shed roofs will require at most two runs of felt before they come to the ridge. Or, if a roofs decking has warped or bent, it can pull nails out of place. About Us | Contact Us | Privacy Policy | Home. For best performance, you should use ring roofing nails that are made of hotdipped galvanized steel. As a result, most local building authorities have banned staples for roofing. 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. Nails will also be required for any roofing project. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. 3. Staples are also not as durable as nails and are more likely to come loose in high winds. Overlapping roofing felt protects the roof deck from seepage, wind-driven precipitation, and ice-dam back-up. 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. 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. -A 5/12 roof deck 4x 8 is 32sqft x 1.10 = 35.2sqft. 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. Cut it at the opposite gable edge, and roll out and staple the next course with the desired overlap. Ideally, the roof should be done when there is a forecast for several days without a lot of rain. 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. 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. 2. 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. Another benefit of roofing staples is that they cause less damage to shingles than nails. The standard size for roofing felt paper is categorized into four. (Must Read This), Pressure Treated Lumber For Roof Rafters (Lets See), Roof Sheathing Horizontal Or Vertical (Must Read). #12 x 1 in. Plastic Round Cap Roofing Nail (3,000-Pack) 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. 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 also doesnt wrinkle when wet or crack and split in the cold. It is quicker to install and can withstand winds and extended exposure better than felt. Divide the total footage by 100 to determine the number of "squares" in the roof. 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. Divide by 432 or 216 depending on the weight of felt for 4.89 rolls of #15 or 9.78 rolls of #30 felt. Pack Size. 19. Place your nails in a plastic cap or one with nails. The felt should be secured every six inches with nails or staples. Start at the bottom of the roofline and work up so any water that gets through the roofing material will shed down the tar paper and will not go under it. Head diameter According to the IBC, the minimum head diameter for a roofing nail that's in compliance with IBC guidelines is 9.5mm. Unfortunately, it's not rated for fire resistance. Roofing felt products should not be glued to the decking in lieu of using nails or screws. It is required to block any rain that gets under or between shingles from penetrating into the wood decking. How Many Nails Needed For Roofing Felt? | Easy Living Mom This will help keep any moisture from getting under the felt. Nails and staples have several significant differences. 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. 1. They are the most basic type of roofing nail and cheaper than the other two options. 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. They are easy to install and are unique in their work and functions. . Copper nails are most often used on roofs with copper flashing and accessories. Highly visible alignment lines. For slopes between 2/12 and 4/12, double the resulting area value and then divide by the area a roll of felt covers. Step-by-Step Ridge Vent Installation Instructions - Fine Homebuilding By the end of your read, you should know how to install felt underlayment for asphalt shingles. Any stray roof tacks, pieces of old felt, or general debris should be cleared off. So, choose these nails where performance, especially wind resistance, is a priority. For slopes greater than 4/12 a single layer of felt is acceptable. Use four roofing nails per shingle, as indicated on package instructions (six nails in high-wind areas). A staple gun is convenient because it is less bulky and can shoot a lot of staples in a short period. Ensure theyre long enough to penetrate through the felt and the roof decking. Replace any damaged decking and sweep the deck clean of sawdust and debris. The paper should then be nailed in or stapled every three to four inches across. -A 3/12 roof measuring 20x48 per half is 960 for a total area of 1920sqft. Other Materials The Best Roofing Nails For Shingles; Ultimate Project Guide Heavyweight asphalt shingles commonly have a longer service life. Repeat until the roof is covered. A larger-size head might increase the risk of exposing part of the nail head in standard nailing locations on the shingle. Mold and mildew will result and you could wind up having to rip off the roof and install a new one. This is because they are faster and easier to install than nails. "World." This way, you can avoid making multiple trips to the store for more supplies. . Professional roofers look for the correct length because they want the nails to puncture the decking entirely. Installing roof felt is a two-person job. Work up the roof to the peak and fold felt over the top, overlapping at least 3 inches and fasten it on both sides. Once this course is laid, you can begin snapping horizontal chalk lines up the roof to ensure straight rows. Sheradised Square Twist Nails are invalueable when working with timber construction. What Size Staples Required for 30lb Felt? You may find roofing nails identified by their penny length. For steel, this means stainless steel or galvanized steel. Roofing nails are available in lengths ranging from one to two inches. A roof certification is a significant component of the overall roof maintenance management and significantly benefits homeowners. Roofers tend to use the roofing nails they already have on hand to install flashing. Many manufacturers offer 10-year guarantees for felt. Repeat as necessary. The rolls are typically either 50 or 100 feet long. Nails for roofing felt are also more expensive than typical nails. How to Estimate Roofing Materials: 11 Steps (with Pictures) - wikiHow The most distinguishing feature of a roofing nail that sets it apart from other types of nails is the size of its head. 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. In your building codes and international building codes, nails may be referenced as fasteners along with staples and screws. Various nail shank types for different requirements. The puncture must be complete so that the whole diamond tip is past the wood. Wood splinters should also be pulled out for a smooth, clean decking surface. Continue along the roof to the other end and trim the felt flush at the end with a utility knife. The heavy-duty felt or paper is saturated or coated with bitumen. 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. Secure the shingles with the roofing nails. NOTE: Not all products featured will be available in your area. 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. Installing the roofing felt does take care, but can go very quickly. If you take the time to properly prepare the roof, then laying the felt will be easy. One MSR roofing roll is usually about 36 feet long by 36 inches wide. The quality of the material used is also an important consideration. However, both fastening systems are durable and will last for many years with proper care and maintenance. The weight or thickness needed will vary by regions, but 15-pound suffices in most locales. If your building codes require thicker sheathing, youll need 1 -inch nails. How to Apply Underlayment to a Roof - Better Homes & Gardens Use the nails with or without plastic caps. I hope you found the guide informative and have a better understanding of how to install roofing underlayment. Measure the width and height of each section separately. Point: diamond or blunt. This is because the staples are smaller and have a smaller head, which means they pierce the shingle less. A Guide to Roofing Nails for Shingles: Nail Sizes & Types - IKO This can cause your roof to leak. This is How Far Apart Should Newel Posts Be! Consider other underlayment options as needed, such as rubber or tar products. Before securing the end of a row, take time to walk the row, smoothing out any rough spots and matching up the snapped chalk lines. Be sure you to use the correct nail length and place it properly. A nail gun can be used to quickly install some nails to the roofing paper wont slide around. Under most building codes in North America, 12-gauge is the minimum thickness of nail allowed on a roof. You can find each of the three types of roofing nails in the three materials we list below. What Size For Roofing Felt? The layers of felt should be overlapped by 1 inch as you work toward the roof ridge. By Maria Goudiss. Installing a roof is much more than just nailing shingles onto some boards. Nail metal drip-edge flashing, which bends over the roof and down the edge of the facing board, on all roof edges. 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. In most jurisdictions, building codes require using nails for roof shingles. Every time there is a gust of wind, we rely on the nails weve chosen to hold new shingles in place. On the flipside, if you rush through the initial steps, the felt installation can be compromised by sloppy oversights such as stray nails. Tar Paper & Roofing Felt Options at RoofingFelt.org We have the following; For galvanized roofing shingles, they make use of a 16 gauge shank. The roofing felt should be applied in layers that overlap. They may or not allow staple roofing felt. Tack the gable edge and tack the bottom edge and mid-line as you unroll. Felt is typically 3 feet wide, so that means a roll is approximately 144 feet long. What Size Roofing Nail Should I Use. 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 . You should use 12-gauge or thicker. On low slope roof decks between 2/12 and 4/12, the recommended overlap for roofing felt is a minimum of 19-inches. Synthetic Roofing Felt, do not use nails or staples without caps. Choosing longer rolls will allow you to cover more roof surface with fewer seams. That being said, you can expect a small, 5-pound box of smooth shank galvanized steel roofing nails to cost around $10. The overhang to the next strip should be 3/8 inch. Fit felt around vent pipes or other protrusions by cutting it with a utility knife and fastening around the bottom of the vent. It will protect the roof for about a month without shingles, provided it is fastened properly and it isnt too windy. Felt nails are less visible than staples. This makes them the better option for most people. This is because the nails are small and blend in with the paper backing of the roll. F1667 RSRS-03 (2 " 0.131") nails or ASTM F1667 RSRS-04 (3" 0.120") nails.