However, you can count on about 10 — 15 percent as a general range. But, usually, there will be a bundle or half a bundle remaining. All rights reserved. The information on this website is subject to change without notice. IKO assumes no responsibility for errors that may appear on this website. IKO strives to accurately reproduce the screen images of the shingle swatches and house photos shown. However, due to manufacturing variances, the limitations of your monitor resolution and the variation in natural exterior lighting, actual colors may vary from the images you see.
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Location set to view all. Show All Products. Eaves Protection The linear feet of eave length will be needed so that enough rolls of eave protection membrane will be supplied. Starter Strips The total eave length can be added to the total length of all rake edges to get the total linear feet needed for drip edging.
Calculate Underlayment Area Once the eave starter amount has been determined, the total area of underlayment can be calculated simply by subtracting the area that will be covered by the eave starter from the total roof area. Valleys Depending on the roof geometry, valleys may be present on the roof , and, if so, the total linear feet of the valleys will need to be measured so that enough valley flashing can be delivered. Ridge Lines and Hips While only some roof designs will have valleys, all sloped roofs will have at least a ridge line, and many will have hips.
This website uses cookies to provide necessary functionality and to improve your online experience. By using this website you accept our use of cookies and the Privacy Statement. IKO manufactures products for specific areas in North America. Take other miscellaneous costs into account. Depending on the type of roof and your supplier, you may have some other costs to consider. Some of your other costs may include: Venting.
A venting system plays a crucial role in maintaining the integrity of the roof during hot and cold weather. Aluminum or steel material that is used to cover roof joints and prevent water from getting in. An ice shield is only necessary if you live in an area that is prone to ice and snow in the winter. These are required to go around any pipes sticking through the roof. Delivery charge for your materials if there is one.
Did you know you can get expert answers for this article? Unlock expert answers by supporting wikiHow. David Bitan. Support wikiHow by unlocking this expert answer. Not Helpful 0 Helpful 0. Mark Spelman Construction Professional. Mark Spelman. Not Helpful 33 Helpful I have a roof that measures square feet.
How many bundles of shingles do I need? Not Helpful 48 Helpful Include your email address to get a message when this question is answered. By using this service, some information may be shared with YouTube. Unless you have prior experience, it's safest to have a professional roofer go out and measure your roof. Helpful 0 Not Helpful 0. Related wikiHows How to. How to. Expert Interview. More References 3. About This Article. Co-authored by:.
Co-authors: Updated: May 14, Categories: Building Roofs. Article Summary X To estimate roofing materials, start by finding the total square footage of the roof and divide the number by to determine the number of "squares" in the roof. Thanks to all authors for creating a page that has been read , times. If someone has a project and needs help, this is the best place I have found. More reader stories Hide reader stories.
Did this article help you? Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy. Synthetic underlayment comes in 10 square rolls, while regular 15 felt comes in 4 square rolls.
So for the 24 square roof example, you would need 2. Finally, if you have any questions about your estimate, ask a roofing contractor in your area. Most will be happy to give you a free estimate. Calculate the roof length by measuring the exterior walls plus the overhang for the length of the house parallel to the ridge.
Next, throw a rope over the ridge and mark it where it meets each eave. This will give the width dimension to use in figuring your area.
This should be done on each roof section containing a horizontal ridge. Determine the roof area by using a mathematical formula that accounts for the roof length, total span, and roof pitch :. Generally, you should use four nails per shingle in the field of the roof, and 5 nails per starter shingle. For regular three-tab shingles , this would require nails per square for field shingles. Multiply the number of starter shingles required by 5 to determine the number of nails required to fasten starter course.
For high wind areas or when shingles are being applied to a mansard, six nails per shingle are required, or nails per square. This is based on 80 shingles per square. Other styles of shingles may require more or fewer nails per shingle and may have more or less than 80 shingles per square. Refer to the application instructions on your shingle wrappers for the correct nailing pattern. Always check what local building code dictates for fasteners. Ask your dealer for the correct amount of nails for your size roof, in the length you specify.
Getting the color and shape of shingle you always wanted is a great way to express your individual personality and add real value. Owens Corning. Planning Your Roof.
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