Calculating the quantity of materials needed for a roofing job can be complicated, especially if the roof is complex. It can also be dangerous; some roofs are so complex that the only way to get an accurate estimate is to climb onto the roof and measure each plane separately. In addition to determining the quantity of shingles, you must also determine how much underlayment, drip edge, flashing and other products will be required. For all of these reasons, it is best to have a professional roofing contractor determine the materials needed for the job. However, if you are just trying to get a rough estimate, the following information may help.
Definition of Terms
Before continuing, it might be helpful to define certain terms used.
• A square
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It is always expressed with the vertical rise first. To illustrate, if a roof rises 14 inches for every 12 inches of horizontal length, the pitch would be expressed as 14/12.
• The ridge is the horizontal area where the tops of two roof planes meet.
• The hips are the sloping vertical areas where two roof planes meet.
• Valleys are the channels where two roof planes meet.
Estimating Roof Area Using Pitch and Square Footage
If you are mathematically inclined or have a good calculator, you can estimate the roof area if you know the pitch of your roof and the square footage of your home. To illustrate, if your pitch is 4/12 and your two-story home has 1,400 square feet on each floor, these are the calculations.
• Divide the pitch. For a 4/12 pitch, the answer is 1/3.
• Square the above answer, which in this example would yield 1/9.
• Add 1, expressed as a fraction. That is, you would add 9/9 + 1/9 for a total of 10/9.
• Take the square root of 10/9, which is approximately 1.054.
• Multiply 1.054 by 1,400, the square footage of the home used in this example. You should get
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You will need at least 14.756 squares of roofing. However, you should add about 10 percent for starter strips, valleys, waste and hip and ridge.
Estimating Materials Based on Actual Measurements
Measuring each roof plane requires you to actually go onto your roof. If your roof has a number of planes and numerous hips, ridges and valleys, this is the most accurate way to calculate the materials needed. Take a metal tape measure and a pen and paper. Measure each plane's length and width. Record your measurements. Once you are safely on the ground, use your measurements to determine the square footage.
• For rectangular areas, multiply the length by the width. For example, if a plane measures 30 feet by 100 feet, this would be 3,000 square
This program will compute the area of a house that has four rectangular rooms. Output is the value of the total area (total_area) of the house and is to be calculated by area/length/width input (A1, A2, A3, A4, L1, L2, L3, L4, W1, W2, W3, and W4) variables declared as float variables. The program will utilize the standard mathematical formula of obtaining area of a rectangle: A = L*W. As well, the
Atticus is a Hero In Maycomb, Alabama, a white lawyer, Atticus Finch, is defending an innocent black man, Tom Robinson, for raping a white women, Mayella Ewell. This is a time of racism and hatred. Atticus has two children, Jem and Scout. Atticus Finch in Harper Lee’s
As a fourth shape, the area of a square was found by using basic geometric equations. We could easily assume each side was equal to four inches, since the total of all three sides had to be equal to 12.
To learn more about the differently types of roofing, or to request a free estimate for your Vancouver area home, please contact the professionals at Laurentian Roofing
With additional assistance, you can handle more length than that. You will also want to measure your roof; depending on how long each side of your roof is, you may be able to create sheets of roofing material that will run the entire length of your roof.
Throughout ancient history, one can find many different examples of civilization, each with different geography, political systems, and cultures. Although many of these empires were prominent and influential, one could argue that the two most contrasting, impactful civilizations were perhaps Egypt and Mesopotamia. These two empires had entirely different circumstances in terms of the land they were erected on, the peoples both in the land and surrounding it, and the social customs that developed. However, in spite of the wildly differing conditions, both Egypt and Mesopotamia were able to develop in such a way that the two cultures were both in a position to leave behind impactful legacies that still influence the world today. Before one considers how Egypt and Mesopotamia differ socially and politically, one must first understand the different geographies that drove
With a professional roofing contractor, you can cut out days of guess work and mistakes by employing the services of an experienced, efficient worker.
A roof section is a unique section of roofing that has the same construction assembly from the deck attachment to roofing material surfaces. A roof section is identified by edge details and termination points; e.g. expansion joints, a parapet wall, or a wall termination. On large open sections, expansion joints can serve a termination point to separate large sections into smaller areas.
In this section the procedure outlined in ASCE 7-10 to calculate external pressure coefficients, GCp, for roof components and cladding (C&C) are described, and the CFD LES results are compared with the GCp recommended design values from ASCE 7-10 along with wind-tunnel data and TTU field measurements. According to the ASCE 7-10, the external pressure coefficients recommended for C&C for gable roof of low-rise buildings with a roof pitch less than 7º shall be evaluated based on surface zone definition in Figure 30.4-2A from ASCE 7-10 [4]. This figure is represented in this chapter in Figure 5.24. According to the Figure 5.24, the first step to evaluate GCp is to calculate the effective width, , and defining the effective area of each zone on the roof. The effective width should be the minimum of 10 percent of least horizontal dimension or 0.4h, but not less than either 4% of least horizontal dimension or 3 ft (0.9 m). For the case study TTU low-rise building with dimensions of 3.96m x 9.14m x 13.72 m, the value of is calculated as follows:
However, one thing to keep in mind is you want to match the architecture. You may need to choose something that would have been placed on the home when it was built, especially if the home has historical significance. Asphalt, copper, slate, and wood shakes are all possibilities. Asphalt and metal shingles can even be made today to resemble the appearance of wood shakes and slate. Another thing to consider is the cost of a new roof on a home with a steep pitch. It requires more skill and special equipment for the job, so installation costs could be higher. You'll want to know the age of the roof before you buy, and if the roof is made of very durable materials such as slate or metal, that is an added plus when compared to asphalt shingles that need to be replaced much
Once you know the size of the roof, divide it by two so you know how big each half is, and buy two tarps that are slighter bigger than this measurement. The reason for using one tarp for each side of the roof rather than one big tarp that covers the whole roof is that the smaller the tarp you are using, the less chance of storm winds getting under the tarp edge and ripping it back up to do more
Inspecting your roof is important no matter the material your roof is made of. The roof is a really important part of a house so you want to make sure it is in good condition at all times. This will save you heat and cooling costs and many other house hold bills. You can save yourself a lot of time money and trouble just from having roof inspections regularly. Better safe than
“America is not winning this war against drugs,” says Block and Obioha from a 2012 article. My group is addressing the problem of War on Drugs that is creating hardships on millions of people across the United States. We are going to address the money aspect and the effect it has on both the local and federal economy, proposals currently in effect and proposals that should be made, and the states that have currently legalized drugs like marijuana. I will be covering the effects the War on Drugs has on communities.
Depending on the quality of shingles that you have chosen to use to put a new roof on your home. You could be spending anywhere from around $4.50-7.50 a square foot. That means that a new roof could cost you anywhere from $ 18,000-29,000. The average life expectancy of a 3 tab shingle roof is about 15-18 years. Dimensional and premium shingles have a life expectancy of about 24-30 years. Here are a few factors that will also help determine the life expectancy of a shingle roof. The color of your shingles will help determine the life expectancy of your roof the darker the color the more heat your shingles absorb shortening the life expectancy. The angle or pitch of your roof will help determine the life expectancy of your shingles the higher the pitch the better the life expectancy of your shingles. If you have one or more layers of shingles, the quality of the product, the quality of the installation and attic ventilation will also help determine the life expectancy of your roof. Trees near your home with branches rubbing on the roof and leafs being collected