Multiply the two and you get Multiply that number times two and you get square feet — your total roof area. Now you need to find out how many bundles of shingles is required for square feet of roofing. Divide by to find out how many squares of roofing you have. This equals 1. We know that each square of roofing requires 3 bundles of shingles, so 3 bundles of shingles times 1. You still have. It would be prudent to purchase one extra bundle of shingles to ensure you cover your entire area and to replace any damaged shingles in the future.
The roof pitch is , which means the width of the roof is about Add 1. The total roof area is square feet. Multiply 7. The number of bundles per pallet depends on the weight and size of individual shingles.
In most cases, there are between 33 and 42 bundles per pallet. Architectural laminated shingles are bulkier and physically larger; therefore, these pallets will have fewer bundles than 3-tab shingles. A bundle of shingles weighs anywhere from 60 to 80 pounds.
Most bundles are in the pound range. A bundle must be light enough to be handled by your average-sized adult. Therefore, you will not find bundles that way anywhere beyond 80 pounds. Very thick laminated architectural shingle bundles may weigh less if it requires 4 bundles to make a square of roofing. In that case, each bundle will cover a smaller area and will thus weigh less.
However, the majority of shingle bundles will have a similar weight. A standard bundle of 3-tab shingles is just above 60 pounds. Architectural shingle bundles weigh around 70 pounds per bundle. They weigh more than 3-tab shingles because they have a greater surface area and also are multi-layered, so each shingle is bulkier. Even though there are fewer shingles in each bundle, they still weigh more than a 3-tab bundle with more shingles in a bundle. A bundle of synthetic slate shingles weighs around 40 pounds.
Many slate shingles that are synthetic come in bundles of Each tile weighs about 1. A bundle of standard hip and ridge cap roofing shingles weighs around 60 pounds. As they are usually thicker than standard shingles, they also weigh more. Also, be sure to use a roofing calculator to double-check your calculations to determine the square footage of your roof.
One miscalculation could lead you to lots of leftovers, or not enough, shingles, which is a headache no matter which way you look at it. When roofing, be sure to always take appropriate safety precautions when moving around on your roof.
Eugene has been a DIY enthusiast for most of his life and loves being creative while inspiring creativity in others. He is passionately interested in home improvement, renovation and woodworking. The roll size depends on the type of underlayment product. 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. Breaking news: See More. Search this thread. How many shingles do I need for my shed roof?
But I am confused by Lowes' product description - it says that this bundle has I am completely new to this obviously - I just watched some YouTube videos and I think these are all I needed in terms of materials.. Does a shed roof really need underlayment and drip edge? So a roof that has square feet of area has 16 squares. Remember that unless the roof is flat, the square footage of the building is different than the square footage of the roof.
This is because of the pitch of the roof and the overhangs. Determine the squre footage of the shed foot print by measuring the length and width of the shed including the overhangs. For example, if you have a simple 12 foot by 16 foot shed you add the overhangs to those dimensions.
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