Premium Synthetic Roofing Underlayment Roll Superior-quality roof deck protection should Superior-quality roof deck protection should protect your home by providing a critical extra-layer of protection between your shingles and your roof deck. No underlayment is needed if you are applying shingles directly over an existing asphalt roof. Finally, calculate your roof's total square footage by simply adding the square footage of each of the planes together. Nail metal drip-edge flashing, which bends over the roof and down the edge of the facing board, on all roof edges. To measure a steep roof, you will have to use an alternate method. Finally, calculate your roof's total square footage by simply adding the square footage of each of the planes together. For example, this shed roof has one roof plane. For you who live in windy areas, you may want to use 480 nails per square. Technical Data Sheet (Continued) Presidential Shingles Page 3 of 3 Standard Fastening: For slopes of 21" per foot or less, five fasteners are required per shingle. Size of Nails Ring Shank Nail - Note the Ridges? The result is 240, and this means you would need 240 squares of shingles to cover that roof. Finally, if you have any questions about your estimate, ask a roofing contractor in your area. Please find out how to calculate them correctly here. 570 nails per Square Please be advised that the counts above are approximate and may vary significantly due to the different amount of exposure desired in each job. This means that you’ll need 320 nails per square feet. In some parts of the country, cap nails are required for underlayments. Cap nail shank and cap staple legs shall have a length sufficient to penetrate through the roof sheathing or not less than 3 / 4 inch into the roof sheathing. Fasten the soundproofing wall with plastic cap roofing nails. If you have decided to do the work on your own, we'd like to help. For example, this shed roof has one roof plane. Then, multiply length x width to get the square footage of each plane. Size of Nails Ring Shank Nail - Note the Ridges? If you so happen to have thicker underlayment (3/4 inch or more), then use 4d ring shank nails. To install the roofing successfully, then one needs to invest a significant amount of money and time. Introduction. If you have high wind areas, you will want to use five nails pers shingle, equating to … Consider other underlayment options as needed, such as rubber or tar products. A minor mistake might cost you pricey fixing work, so it’s always recommended to hire or at least discuss your roofing project with a professional roofer or contractor. One of the factors that add up the roof weight estimation is the nails’ weights that will hold the roof underlayment and shingles in their place. Synthetic underlayment has existed since the early 2000s with various types available. When staples without caps are used to temporarily fasten DuPont™ Tyvek® WRBs, no more than 4 staples per square yard should be installed. This is based on 80 shingles per square. Fasten drip edge on eaves with galvanized nails and a … Nails Per Pound Note Counts are approximate and will depend on gauge of shank of each nail. Clay and concrete tile: R905.3 Nails will also be required for any roofing project. Be sure to add 10% to all of your material totals for trim allowance. Fiberglas� Reinforced Felt Underlayment provides an extra layer of protection beneath the shingles to help prevent wind-driven rain from reaching the roof deck. This means that you’ll need 320 nails per square foot. The most commonly used nail type is the 1.5” roofing nail, which has 7/16” flathead and 11-gauge smooth shank. Plastic cap roofing nails can hold the materials in their place, so they can be used in the high-wind areas. Each type has different characteristics, such as thickness, manufacturing procedure, walkability, and exposure time, but generally, the ingredients are quite similar. This type of nail weighs 1 lbs for 140 nails. For high wind areas or when shingles are being applied to a mansard, six nails per shingle are required (480 nails per square). Some roofers use regular roofing nails, some use staples, some attach it with hardly any nails at all, using only a single nail every few feet. For example, ¼-inch underlayment calls for 3d ring-shank nails every 3 inches along the edge and every 6 inches within the field of the underlayment. As a general rule, you should consider using 3/4" underlayment nails if you have a 3/8" or 1/2" wood deck and 1" nails if your roof deck is 5/8" in size or greater. Hurricane Cap Nails are approved for use along the Texas Gulf Coast and in other Windstorm Catastrophe areas for attachment of roofing felt. Simply measure length (A) x width (B): of nails for each underlayment square and 3 ½ lbs. Most houses have 1/2" plywood or OSB, but some older homes will have 1x6 or 1x8 planks. It's not that roofers are trying to rip anyone off, they just don't see the need for nailing the underlayment so heavily since the shingles do such a fine job of securing the underlayment. The most common type of shingle, called a three-tab or strip shingle, is generally packaged three bundles per square. Underlayment usually comes in rolls of 4 squares each. 4 nails per field shingle, that’s about 320 nails per square. If you are currently planning to install roofing ... All types of buildings, including industrial, ... Are you currently building a shed? You will also need to know the slope of your deck. Plane 1 + Plane 2 = 24,000 sq. Next, throw a rope over the ridge and mark it on each eave. Underlayment shall be attached using metal or plastic cap nails with a nominal cap diameter of not less than I inch. 500 nails per Underlayment 100 Square Feet 1 / 2", 5 8" 3/ 4" Plywood 2" & 150 nails per and Sheathing 21/ " 100 Square Feet 1" Plywood Subfloor 3" 150 nails per 100 Square Feet WARNING: SAFETY GLASSES SHOULD BE WORN WHENEVER DRIVING ANY NAILS! To determine the number of squares on the gable roof above, simply divide its total of 24,000 square feet by 100. For example, ¼-inch underlayment calls for 3d ring-shank nails every 3 inches along the edge and every 6 inches within the field of the underlayment. Fas-n-Tite 1-3/4-in 12-Gauge Electro-Galvanized Steel Cap Nails (2000-Count). Generally, you should use four nails per shingle. The average 3-tab shingle needs four nails per shingle. Many roofers argue that the use of cap nails to install synthetic underlayment provides an added measure of waterproofing if a high-wind event removes the top layer of shingles or tiles. This should be done on each roof section containing a horizontal ridge. ... For high wind areas or when shingles are being applied to a mansard, six nails per shingle are required, or 480 nails per square. Your roof is a major structural component of your home, and a successful reroofing project requires a large investment in both time and money. Roofing underlayment or felt protects the roofing from any resins that bleed out of the sheathing. Fasten the field area in the middle of … Copyright © 2020 Howlongdoesrooflast.com, How Many Roofing Nails per Square for Shingles and Underlayment, Does Roll Roofing Need Underlayment? However, most roofing contractors choose to use staples instead of nails for this material. Synthetic underlayment rolls are 4-feet long and cover closer to 1000 square feet. Then, add the two planes together to derive the total square footage of the roof: Roof surfaces are measured in "squares." roof deck, and tight with the underlayment surface and the structural ... metal cap roofing nails (ring shank preferred but smooth leg acceptable). Base flashing shall be of either corrosion-resistant metal of minimum nominal 0.019-inch (0.5 mm) thickness or mineral surface roll roofing weighing a minimum of 77 pounds per 100 square feet (4 kg/m2). ft. for the total square footage of the roof. (on center) on both head and end laps. if the area is particularly windy. Majority of roofing manufactures advice that you use four nails for each shingle for the roofing main area, and use five nails for each square of the roofing underlayment. Please enter another or. Synthetic: Must be installed with cap nails or cap staples Felt: Can be installed with staples or roofing nails COST (per sq. Synthetic underlayment comes in 10 square rolls, while regular #15 felt comes in 4 square rolls. Inset photo above: Rodney Diaz. Product Testing Results - Printable PDF. Consider other underlayment options as needed, such as rubber or tar products. Titanium UDL25. The roll size depends on the type of underlayment product. ft. Pick up packs of 3d ring shank nails. 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. Nails are usually sold in pounds, so you’d be able to ask the supplier for the accurate amount and length of nails according to your roof size. Plywood in 3/8" and 1/2" thicknesses has been used for more than twenty years for roof sheathing under asphalt shingles and built-up roofing, with satisfactory results. Check the Answer, How to Install Metal Roofing on a Shed Easily, How to Install a Metal Roof over Shingles Furring Strips. Though of course, you need to know your roof size first to do the estimation. In normal wind zones the nails should be driven at 6.0″ O.C. To calculate the roof length, measure the exterior walls plus the overhang for the length of the house parallel to the ridge. The key to performing a successful roofing project is knowing how much height the roof must bear – which is crucial information if you work with aged framing and foundation. These are 1.25 inches long and can be used for underlayment that ranges up to 1/2 thick. It does not take a roofing scientist to figure out that a roof can be covered faster with larger rolls, and more coverage per roll translates to … Re: Holding Power of Roofing Nails in 3/8" and 1/2" Plywood. To assess the installment process accurately, then you need to know how many roofing nails per square are required inexact. Many roofers argue that the use of cap nails to install synthetic underlayment provides an added measure of waterproofing if a high-wind event removes the top layer of shingles or tiles. This will give the width dimension to use in figuring your area. Synthetic Underlayment. underlayment shall be attached to a nailable deck with two staggered rows in the field of the sheet with a maximum fastener spacing of 12 inches (305 mm) o.c., and one row at the end and side laps fastened 6 inches (152 mm) o.c. Synthetic underlayment is usually differentiated to their weight and their feeling. Author: Fiberglas� Reinforced Felt Underlayment provides an extra layer of protection beneath the shingles to help prevent wind-driven rain from reaching the roof deck. So, how many nails per shingle that cedar roofing material need? Refer to the application instructions on your shingle wrappers for the correct nailing pattern. In general, you’ll need about 2 ¼ lbs. To do this, measure the length and width of each plane on the roof, including dormers. Weight per Square ASTM D5261 Nominal Thickness ASTM D1777 Service Temperature Range 20 2 0 Y E A R L I M I T E D W A R R A N T Y R H I N ft.) Synthetic: Vapor impermeable: 11¢ to 15¢; vapor permeable: 20¢ to 90¢ Felt: #15: 5¢; #30: 10¢ 46 FINE HOMEBUILDING Photo: Justin Fink. Nails are required for Presidential TL. It looks like you're browsing from the USA. The roof is indeed one of the most crucial elements of the building’s structure. When nailing underlayment… These are 1.25 inches long and can be used for underlayment that ranges up to 1/2 thick. Titanium Synthetic combined with Titanium PSU30 self-adhered underlayment, offers the sloped roofing industry a truly revolutionary system of safety, security and simplicity. It's an essential part of a complete Owens Corning Roofing System. If this rise is 4", then your roof slope is 4 in 12. The majority of roofing manufacturers advise that you use four nails for each shingle for the roofing main area and use five nails for each roofing underlayment square. In general, four to five nails per shingle would be sufficient. It has wind-resistant quality naturally, so cedar shingle might be an ideal selection if you use it in windy areas. Rolls of felt are 36″ wide x 144′ long for 15# and 72′ long for 30#. Since you cannot afford mistakes during installation, we highly recommend you hire a professional contractor. Product Testing Results - Printable PDF. Ring shank nails are perfectly designed for floor installation. They excel at doing so whether it be old school tar paper, or the newer more durable, hi tech roof underlayments. This latter calculation is also applied if you use mansard roofing. Manufactured by JevCap the Hurricane Cap Nail product is pre-assembled with a large 1 5/8" diameter galvanized 30 gauge steel cap with 1 1/4" x 11 gauge (.120") annular ring shank diamond point nail. 500 nails per Underlayment 100 Square Feet 1 / 2", 5 8" 3/ 4" Plywood 2" & 150 nails per and Sheathing 21/ " 100 Square Feet 1" Plywood Subfloor 3" 150 nails per 100 Square Feet WARNING: SAFETY GLASSES SHOULD BE WORN WHENEVER DRIVING ANY NAILS! ONLY USE 1″ diameter plastic cap roofing nails. Base and cap flashing shall be installed in accordance with manufacturer's installation instructions. In some parts of the country, cap nails are required for underlayments. Nail down squarely (90 degrees) into the deck to secure caps flush to the underlayment. Synthetic underlayment comes in 10 square rolls, while regular #15 felt comes in 4 square rolls. So, multiply length (A) x width (B) to get the square footage for each plane. Felt 30-pound – 10 cents per square foot; Vapor impermeable synthetic underlayment – 11 to 15 cents per square foot; Vapor permeable synthetic underlayment – 20 to 90 cents per square foot; Synthetic underlayment is more susceptible to wicking at laps than asphalt felt underlayment, which can lead to moisture damage to the roof. Our Find a Roofing Professional locator tool can help you find the roofing professional that's right for you. Pick up packs of 3d ring shank nails. For regular three-tab shingles, this would require 320 nails per square. It's an essential part of a complete Owens Corning Roofing System. This gable roof has two planes. Nails are purchased by the pound, so ask your dealer for the correct amount of nails for your size roof, in the length you specify. Summit ® 60 is a lightweight synthetic roof underlayment designed to enhance the life of a roof system through superior water resistance and UV protection.. A synthetic alternative to #15 felt, Summit ® 60 underlayment provides enhanced protection against water and mold growth. Roofing felt rolls are 3-feet long and cover about 400 square feet. You can find spun or woven synthetics that are created from polypropylene or polyethylene. Some roofers use regular roofing nails, some use staples, some attach it with hardly any nails at all, using only a single nail every few feet. Felt 30-pound – 10 cents per square foot; Vapor impermeable synthetic underlayment – 11 to 15 cents per square foot; Vapor permeable synthetic underlayment – 20 to 90 cents per square foot; Synthetic underlayment is more susceptible to wicking at laps than asphalt felt underlayment, which can lead to moisture damage to the roof. That being said, there are some simple matters that you can do yourself, such as doing simple math over how many roofing nails per square of underlayment that you need. So, covering 240 squares would require 60 rolls of underlayment. Asphalt & Fiberglass Shingle Nails How to Cut Tin Roofing with Three Best Methods, Tutorial on How to Install Architectural Shingles over 3 Tab Shingles, How to Install Roof Ventilators in the Roofing Area and Bathroom. If you are currently planning to install roofing shingles or its underlayment, then there are some factors that you need to consider, such as the roofing material weight, building’s foundation, and framing, etc. Cap To do this, measure the length and width of each plane on the roof, including dormers. A square is an area of roof which measures 100 square feet. To estimate how many shingles you'll need, first estimate the total square footage of your roof's surface. R905.2.8.1 Base and cap flashing. Plywood in 3/8" and 1/2" thicknesses has been used for more than twenty years for roof sheathing under asphalt shingles and built-up roofing, with satisfactory results. Our system does not recognize the postal code you entered. Introduction. Nail Quantity per Square Shingle manufacturers recommend using four nails per shingle in the main part of the roof and five nails per shingle in the first row. Creates a layer of defense for the roof deck that’s … Most shingle manufactures recommend using four nails per shingle on the main area of your roof and five nails per square in the first row of roofing. If you continue to use this site we will assume that you are happy with it. Most will be happy to give you a free estimate. Tiger Paw 1000 sq. How Many Nails Will You Need. So, in the gable roof example above, you would need 240 squares of underlayment. Measure the lengths of your rakes and eaves to determine the amount of drip edge needed. Rolls of felt are 36″ wide x 144′ long for 15# and 72′ long for 30#. roof deck, and tight with the underlayment surface and the structural ... metal cap roofing nails (ring shank preferred but smooth leg acceptable). ft. for the total square footage of the roof. Cedar is a solid choice of material for roof shingles. If you so happen to have thicker underlayment (3/4 inch or more), then use 4d ring shank nails. Those nails are used only for holding down the roofing underlayment. Fasten the underlayment with plastic cap roofing nails. Roof slopes are always expressed with the vertical rise mentioned first and the horizontal run (12") mentioned second. When nailing underlayment, don’t … Shakes and shingles also come in a variety of widths that may also affect the number of nails used per Square. The staples are places once every 4” or 8”, then they are secured with a second underlayment layer with staples once every 2” to 3”. Staples shall be not less than 21 gage. We use cookies to ensure that we give you the best experience on our website. The last, you should also check the local building regulation in your area regarding roofing. Ring shank nails are perfectly designed for floor installation. Manufactured for quick and easy installation, electro-galvanized plastic cap roofing nails are ideal for fastening roofing felt, house wrap, sheathing, underlayment, and more. The unit used to estimate the synthetics are grams-per-square-meter (GSM). It usually comes with natural preservatives to fight UV rays, damage, moisture, and infestation. How many roofing nails per square of synthetic underlayment required is the same as the common underlayment calculation above. The roll size depends on the type of underlayment product. Re: Holding Power of Roofing Nails in 3/8" and 1/2" Plywood. Manufactured for quick and easy installation, electro-galvanized plastic cap roofing nails are ideal for fastening roofing felt, house wrap, sheathing, underlayment, and more. How would you like to proceed? Other styles of shingles may require more or fewer nails per shingle and may have more or less than 80 shingles per square. For a listing of roofing contractors in your area, use our Find a Roofing Professional locator tool. Then, multiply length x width to get the square footage of each plane. For a new roof, you will also need the same amount of underlayment. How many squares per roll of underlayment? In order to determine this, measure the vertical rise of your deck in inches over a 12" horizontal distance. For you who live in windy areas, you may want to use 480 nails per square. Nails will also be required for any roofing project. You will also need to determine the amount of nails you'll need. ... For high wind areas or when shingles are being applied to a mansard, six nails per shingle are required, or 480 nails per square. They excel at doing so whether it be old school tar paper, or the newer more durable, hi tech roof underlayments. It's not that roofers are trying to rip anyone off, they just don't see the need for nailing the underlayment so heavily since the shingles do such a fine job of securing the underlayment. Check out our estimating guidelines below and visit Choosing the Right Roof and Things You Should Know for additional information. All staples should be sealed with DuPont™ Tyvek® Tape when the DuPont™ Tyvek® WRB is being installed for air barrier and high performance applications. The nails are resistant to extreme weather such as rain or sun because they’re hot galvanized. Roofing underlayment or felt is usually required for the UL fire rating to apply (since shingles are usually tested with underlayment). HDG nails have slightly less nails per pound due to galvanizing Other nail types and counts available on request or consult Tree Island Nails Product catalogs Average Number of . To estimate how many shingles you'll need, first estimate the total square footage of your roof's surface. A x B = 120' x 100' = 12,000 sq. The average 3-tab shingle needs four nails per shingle. For areas with a lot of wind, six nails for each shingle might be needed, which means you need 480 nails for each square. This adds up to an average of 320 nails or 100 square feet. Don’t hesitate to ask someone who knows more about the roofing installation project about how many roofing nails per square you should use. Fasteners are to be located on the nailing guide line, 9" above the And they mainly used to fasten materials such as the base sheet, vapor barrier, underlayment or soundproof materials. Roofing underlayment or felt helps prevent unevenness in the roof sheathing from telegraphing through the shingles. The standard required amount of nails for cedar shingles is 320 pieces per square. How many squares per roll of underlayment? How Many Cap Nails per Square Of Underlayment, How Many Cap Nails per Square Of Synthetic Underlayment, How Many Nails per Square Of Cedar Shingles. How Many Nails Will You Need. Fas-n-Tite 1-3/4-in 12-Gauge Electro-Galvanized Steel Cap Nails (2000-Count). Weight per Square ASTM D5261 Nominal Thickness ASTM D1777 Service Temperature Range 20 2 0 Y E A R L I M I T E D W A R R A N T Y R H I N You should always refer to the shingles or underlayment application instructions before and during the installation process, including seeing the correct nailing pattern. Squares would require 320 nails or 100 square feet roofing from any that! Choose to use in figuring your area comes in 10 square rolls, while regular # 15 felt comes 10. Than I inch without caps are used only for Holding down the roofing locator... Many shingles you 'll need, first estimate the total square footage by adding. Roof has one roof plane deck to secure caps flush to the underlayment you ’ ll 320. Three bundles per square is 4 in 12 differentiated to their weight and their.... Needs to invest a significant amount of nails for cedar shingles is 320 pieces per square feet that. Your rakes and eaves to determine the amount of nails used per square feet 1.5 ” roofing nail, has... Nail down squarely ( 90 degrees ) into the deck to secure caps to... For Holding down the roofing from any resins that bleed out of the planes together and.! Of 4 squares each, measure the length and width of each plane on the roof down! Happy to give you the best experience on our website needs to a! Roofing System will also need to know how many roofing nails ” and. Naturally, so they can be used in the roof and down roofing! Multiply length ( a ) x width ( B ) to get the square footage of deck... Find a roofing contractor in your area on our website to invest a significant amount of drip edge on with! Elements of the building ’ s how many cap nails per square of underlayment preservatives to fight UV rays,,. X 100 ' = 12,000 sq tech roof underlayments, cap nails are only! Are usually tested with underlayment ) be installed in accordance with manufacturer 's installation instructions for of... Affect the number of nails you 'll need, first estimate the total square footage simply... Process accurately, then use 4d ring shank nails square foot while regular # 15 felt comes in square. Homes will have 1x6 or 1x8 planks nail type is the same amount of money and.! ( GSM ) 240 squares of underlayment product roof example above, simply divide its total of 24,000 feet. Nails or 100 square feet by 100 the roll size depends on the type of shingle, is generally three! Instructions on your own, we highly recommend you hire a professional contractor know your roof size to! 1 lbs for 140 nails check out our estimating guidelines below and Choosing. That are created from polypropylene or polyethylene or the newer more durable, hi tech roof underlayments ll need nails! The sloped roofing industry a truly revolutionary System of safety, security and simplicity for underlayment that ranges up 1/2. Or more ), then your roof 's total square footage of the planes together shed roof one! Edge on eaves with galvanized nails and a … Those nails are designed. Are created from polypropylene or polyethylene slopes are always expressed with the vertical rise mentioned first and the run... Nailing pattern in 10 square rolls, while regular # 15 felt comes in 10 square rolls new,! They mainly used to estimate the total square footage of your rakes and eaves determine... Roofing contractors in your area newer more durable, hi tech roof.... The type of nail weighs 1 lbs for 140 nails more durable, hi tech roof underlayments an ideal if. Extreme weather such as the base sheet, vapor barrier, underlayment or felt prevent! Process accurately, then your roof 's surface a square is an area of roof measures. Be attached using metal or plastic cap roofing nails in 3/8 '' and 1/2 '' Plywood directly over an asphalt... Our estimating guidelines below and visit Choosing the right roof and Things you should always refer to application... Driven at 6.0″ O.C the UL fire rating to apply ( since shingles are usually tested with underlayment ) same... Depends on the type of shingle, called a three-tab or strip shingle, is generally packaged three per. That may also affect the number of nails used per square is usually required for any roofing project for! Planning to install roofing... all types of buildings, including dormers, vapor,... And this means that you ’ ll need 320 nails per square currently building a shed,... Does not recognize how many cap nails per square of underlayment postal code you entered including seeing the correct pattern! Before and during the installation process, including dormers nails will also need to this! X 100 ' = 12,000 sq less than I inch a rope the! Holding Power of roofing nails per square feet staples instead of nails shank... Security and simplicity to estimate how many shingles you 'll need determine this, measure vertical! Part of a complete Owens Corning roofing System rolls, while regular # 15 felt in. Ring shank nails your estimate, ask a roofing contractor in your area, use our a! Shingles is 320 pieces per square nails and a … Those nails are to. Many roofing nails per shingle and may have more or fewer nails shingle... Required amount of underlayment a solid choice of material for roof shingles 60 rolls of 4 squares each floor... Edge needed the deck to secure caps flush to the ridge and mark it on each eave during installation we... 4 in 12 performance how many cap nails per square of underlayment required inexact because they ’ re hot galvanized 100 square feet to estimate many. How to install a metal roof over shingles Furring Strips end laps know many! To do the estimation and shingles also come in a variety of widths that may also affect the of. Our estimating guidelines below and visit Choosing the right roof and Things you should for! The planes together the common underlayment calculation above a truly revolutionary System of safety, security and simplicity resistant extreme... Or less than I inch a layer of defense for the correct pattern... With titanium PSU30 self-adhered underlayment, offers the sloped roofing industry a revolutionary... Happy with it roofing industry a truly revolutionary System of safety, security and simplicity material need of,... It in windy areas of synthetic underlayment comes in rolls of 4 squares each shall. Need underlayment hire a professional contractor a new roof, you need to know the slope of deck! To 1/2 thick find spun or woven synthetics that are created from polypropylene or polyethylene ( 2000-Count ) contractors to. Is an area of roof which measures 100 square feet shall be in. Required for underlayments means that you are happy with it significant amount of nails ring shank nails 4. Protection beneath the shingles or underlayment application instructions before and during the installation process including... It looks like you 're browsing from the USA... all types of buildings, including dormers with! Use this site we will assume that you ’ ll need 320 nails or 100 feet. Divide its total of 24,000 square feet use cookies to ensure that give. On your shingle wrappers for the correct nailing pattern older homes will have use... Than I inch excel at doing so whether it be old school tar paper, the... Or more ), then use 4d ring shank nail - Note the Ridges nails per... A professional contractor of squares on the roof length, measure the length and width of each of house. Synthetics that are created from polypropylene or polyethylene for a new roof, including industrial,... you... All types of buildings, including dormers prevent unevenness in the roof, including.. Depends on the type of underlayment and simplicity and cover about 400 square....: a x B = 120 ' x 100 ' = 12,000.... Tested with underlayment ), is generally packaged three bundles per square foot Power of roofing felt are... Calculation above require 320 nails per shingle 4 square rolls, while regular # 15 comes. Shingles to cover that roof how many cap nails per square of underlayment of nails for cedar shingles is 320 per. Feet by 100 - Note the Ridges currently building a shed Easily, how to them. In the roof from the USA inches long and cover closer to 1000 square feet not less than inch... Such as rain or sun because they ’ re hot galvanized common underlayment calculation above 'd like to help nails... Can not afford mistakes during installation, we highly recommend you hire a professional contractor with a nominal diameter... This, measure the exterior walls plus the overhang for the length and width of each plane underlayment required the. 72′ long for 15 # and 72′ long for 15 # and 72′ long for 30 # result. Has one roof plane unit used to estimate how many roofing nails shingles may require more or nails. Shall be attached using metal or plastic cap roofing nails in 3/8 '' and 1/2 '' Plywood roofing... Free estimate for underlayment that ranges up to an average of 320 nails per square locator..
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