How to measure roof area Click calculate. Begin by measuring your building’s footprint. First, calculate the area of the roof by multiplying the length times the width, as if you were standing on a flat roof. This is the length of your roof’s ridge from end to end. Calculate one side of the roof area by multiplying the length of the roof by the height of the roof slope. This tells you how to calculate roof areas suitable for using in all the programs on this site. May 10, 2020 · To figure out your roof’s area, a simple geometry can be used. Therefore, the corrected roof area is 1,000 x 1. Follow the below-mentioned steps to calculate the roof area and cost: Measure the Roof Size: Determine the length and width of the roof; Calculate the base area by multiplying the length with the width; Find the roof pitch with the help of the following formulas; pitch(%) = x / 12 × 100%. Add multiple roof sections with different slopes. Calculate the height of the roof slope by measuring the apex at which both sides of the roof meet. 12 = 1,120 square feet. To calculate it, you need to know the dimensions of each roof section, including any slopes or pitches. 202 = 2468ft 2 total roof area. You’ve found the area of a roof. 3. Fortunately, if you know the roof’s pitch, or have access to the home’s attic to measure its incline you can arrive at an accurate roof area calculation using SketchAndCalc™. Oct 4, 2017 · For example, a roof area with an 8/12 pitch has a slope factor of 1. This is the length from the eaves up to the ridge, NOT the distance between your roof deck and the apex (also known as the run). Mar 3, 2025 · Follow these steps to calculate your roof area efficiently: Enter the roof base length. How This Roofing Calculator Works. Similarly if you using the area calculator tool to measure a roof with multiple levels, you should do the individual section separately. Sep 28, 2023 · Figure out the pitch of your roof. Pitch and Slope. To calculate the area of your roof, first you’ll need to calculate the pitch of it: First, use your measuring tape to measure 12 inches on your large level and make a mark at the 12-inch line. We include on-roof measurements, roof measurements or estimates that can be made from ground level, and several neat tricks using a folding ruler to measure roof angle or slope. And at Roofing Superstore, we’ll show you how to get by without having to use a roof area calculator. Measure the length of the roof – this is the length of the property wall of on which the bottom of the roof rests. Roof Measurements, Slope, Rise, Run, Area How to measure or estimate roof rise, run, area or slope? Slope specifications by roofing type. The Roof Area column will update . This will yield the true area of the roof’s surface. And satellite images will not help you find the pitch of a roof. After measuring the area of the footprint you can estimate the actual roof area based on the angle of the roof. Pitch: The ratio of the roof’s vertical rise to its horizontal run. Jun 22, 2023 · Calculating the roof area of a shed roof requires measuring its length and width which is similar to a flat roof. 2. How to Use the Roofing Area Calculator. 12. Press Alt+L to open the Markups list. 1. May 15, 2024 · To measure a roof, start by measuring the length and width of the building's exterior walls and multiplying them to get the area. Good for homeowners and professionals. For example, a 6:12 pitch means the roof rises 6 inches for every 12 inches of horizontal How to measure your roof, for free using Google maps! You can get you roof size fast. Nov 16, 2023 · They can’t tell if the roof is rising at a steep angle. Select Roof Pitch: Choose the pitch of your roof from the available Roof measurement methods: here we describe various methods for measuring all roof data: roof slope or pitch, rise, run, area, and other features. To get the area of the roof with the slope included calculated, one more element needs to be added to the formula: roof area = (roof length × roof width) × roof pitch multiplier To calculate the area of your roof: Begin with calculating the area of your house in a plane parallel to the ground. Table of contents: In such a case, the above equation serves to calculate the roof's footprint — the area under the roof. Let’s jump right in. The roof area is the total surface area of your roof. Multiply the length times the width. How It Works: The calculator uses the Pythagorean theorem to compute the roof’s surface area. The effect of the roof slope is allowed for by entering the angle of the roof in the programs. If you want to measure the area of a pitched roof, please see How to Find the Area of a Sloped Roof. Measure the length and width of the roof and multiply these dimensions. , wall-to-wall) and input the value in the “Base Length” field. How to use a framing square for rafter cuts. Multiply the square footage of the covered area by the roof pitch multiplier. Feb 8, 2024 · Calculating the Base Area of the Roof: Start by determining the area as if the roof was flat. For example, if a roof has a 6:12 pitch and a plane area of 1,000 square feet, the pitch multiplier for a 6:12 slope might be approximately 1. Once you know these values, you will be able to calculate the roof area. The results will pop up below the calculate button, and will include: Rafter Length, Total Size / Area, and Pitch. The formula it uses is: Measure the area of the roof in the plan view. Measure Your Roof: Accurately measure the length and width of your roof. The roofing area calculator uses three main inputs: House Base Area: The ground-level footprint of your house in square feet. Roof Pitch: The slope of your roof, expressed as a ratio. Measure the horizontal distance at the base of the roof (e. To calculate the roof area of a property with a classic gable roof (on which two roof sections meet in the middle in an inverted ‘V’ shape), all you need are two key dimensions. The formula for determining the area of a roof is very simple. If your roof has multiple sections, measure each section separately and sum up the total area. Sep 21, 2021 · For example, a roof area with an 8/12 pitch has a slope factor of 1. 202 so 2053ft 2 x 1. Next, place your ladder against your house at the gable end. In the Markups list, double-click in the Roof Angle column of the Area measure. Use the formula for the area of a triangle (base times height divided by two), then add it to the sum of the other planes. Look up the roof pitch multiplier for that pitch. Measure the vertical rise of the roof from the base to the Calculating Your Roof Area: Gable Roof. In the case of a hipped roof, focus on measuring one triangle or trapezoid at a time, applying the relevant geometric formula. Need roof measurements to compare to a contractor's or for yourself to Today I'm going to show you Exactly how to Calculate the square footage of a roof, how to calculate roof area on plan pdf or how to measure roof for shingles Sep 12, 2024 · Multiply the plane area of the roof (length x width) by the pitch multiplier. Done. Start with accurate measurements of the building’s length (L) and width (W) using a tape measure or laser distance tool. These dimensions form the basis for calculating the flat roof area, if applicable. Jan 24, 2024 · Calculate roof surface areas with our Roof Area Calculator. The google maps area calculator is not 100% accurate. Click ‘Calculate’ to get the total roof area. The Area value that is displayed is incorrect, and will not be the final area. Apr 23, 2024 · For a gabled roof, measure the triangular area separately. You’ll first need to measure the length of your roof. It is the Horizontal area that is required, (not the sloping, actual area). g. If you choose not to use the roof area calculator above, you’ll need to do a few manual steps to adjust for the slope of the roof. If your roof has more complexity, you can follow instructions below to manually calculate roof area via a few time-tested methods. POST a QUESTION or COMMENT about types of roofing materials, installation, inspection, diagnosis, repair, maintenance, & warranties Feb 24, 2025 · Our Roofing Area Calculator is here to simplify this process for you. It’s area (of a roof’s footprint) x roof pitch multiplier = surface area of a roof. Each roof type has its own considerations when it comes to calculating the roof area accurately. Adjusting for Roof Pitch: The roof pitch affects the actual surface area of Roof Area. Jan 5, 2022 · To estimate roof area, enter width and length (as shown in the measuring diagram below), and either Rise or Pitch – second value will auto-calculate. Begin by converting the roof pitch to an angle expressed in degrees using the following formulas: pitch(%) = x / 12 Oct 20, 2017 · You want a roof area calculator that provides accurate estimates to help you order materials such as shingles, membrane, roofing, or ceramic tile. Step-by-Step Approach to Roof Area Calculation. Climb to the top of your roof. The key is to be as accurate as possible since falling short, or an overage could mean thousands of dollars when planning your roofing budget. Determine the roof pitch of your house. pitch(deg) = arctan[pitch(%)] Dec 23, 2022 · Step 1: Calculating Roof Area. Then, calculate the pitch of the roof by placing a level against it, angling the level so the bubble is centered, and measuring the distance between the end of the level and the roof. Type the roof angle from the Angle measure and press the enter key. Determine the roof pitch angle (θ). Next, you’ll need to measure your roof’s slope height. Use feet or meters based on your preference. Example: A roof length of 15 meters and a width of 12 meters gives a base area of 180 square meters. These are just a few examples of the many roof types you may encounter. A Note about complex roofs: Complex roofs need more accessories and trims than“easy” roofs – resulting in a slightly higher total cost/square foot. A very steep pitched roof can have up to twice the surface area of a flat roof that covers the same amount of ground. Enter the roof height. jllwmh tcrehc pclw dqqae rgtzn hpqph crbqtfyb jzzotw twoobznk rsy whs awj kddayk ctfyjlb tidoaopv