Aerial measurement

Roofing Resolutions for the New Year

Since we already wrapped up 2020, we’ve all geared up to rang in the New Year. It’s an excellent time to look past the holidays and focus in on the health of your roof this year. A lot of us like to create lists containing our New Year’s Resolutions to achieve on a personal level. Some of the most common resolutions include losing weight, giving up smoking, saving money and vacationing more. But have you considered focusing your resolution efforts on your home or business and making some money-saving roof resolutions?

Clean your commercial roof: OMG! We have literally inspected thousands of commercial flat roofs that were full of debris. Beside the obvious, a clean flat roof looks better than a dirty flat roof; a clean flat roof performs better than a dirty one. If your flat roof has leaves, foliage and other roof debris it not only inhibits drainage but it foster organic growth. Roof debris can clog in-roof drains and scuppers. This roof debris begins to decompose on your roof’s surface, which can cause your roofing membrane to deteriorate prematurely… ROT!

If you have a single ply roof system like TPO, an annual roof cleaning of the roof’s surface will bring back it to its bright white appearance and its reflectivity, which will improve the energy efficiency of the TPO roof system.

Resolve to Schedule Annual Maintenance

One of the best (and easiest!) things you can do for your roof this year is schedule an annual inspection and maintenance visit with a professional. While your roof is designed to last for decades, the only way to get the most out of it is to keep it well-maintained. This includes making repairs and replacing worn-out or damaged parts.

While the average homeowner can do a lot to help maintain their roof, a professional roofer has the knowledge and experience to catch the issues you may miss. Working with a professional can bring you peace of mind knowing your roof is receiving the best possible care.

The benefits of professional roof maintenance include:

  • Fewer repair problems
  • Improved energy efficiency
  • Extended lifespan of your existing roof
  • Reduced maintenance costs overall

Educate Yourself

Even if you have been in roofing for your entire career, believe us, there are things that you don’t know. That may sound harsh, so let us follow up with a positive spin: there’s so much left to learn! Take some time this year to explore educational opportunities for yourself and others at your company. You can go low-effort and join an industry Facebook group, or take a bigger step and join your local Builders Exchange. Either way, you’ll be exposed to new thoughts, new ideas, and new products that can benefit your business.

Mind The Landscaping: Roofing is intended to protect your home from the weather, not repel trees. Keep branches trimmed away from your roof each spring and fall, and prevent damage. Similarly, make the effort to clean your gutters and downspouts of leaves and other debris every fall to ensure proper drainage.

Know Your Roof: Every roof eventually needs to be replaced. Do you know your roof’s expected lifespan? Stay in front of repairs – and the damages to your home that can be caused by a failing roof – by knowing when it’s time to start planning for a new roof.

Invest in Roof Repairs Early

Finally, it is also a great resolution to invest in repairs for a roof as early as possible. Some of the most common signs of roof damage include damaged flashing and missing shingles. If people put off their roof repairs, this can lead to an even larger repair bill down the road. Catch these problems as early as possible. This will prevent the damage from building up down the road. Even though these issues might seem minor at the time, this damage can also lead to pest infestations and water leaks.

roof blueprint

How to Measure a Roof for Metal Roofing Installation

Most residential homes don’t have a perfectly square roof, which is fine, but it can make measuring a roof for metal roofing a bit tricky. Most home roofs also have a pitch and angles that need to be taken into consideration when measuring which can also make things complicated. Not too worry though, we put together some of our best tips and tricks for how to measure a roof for metal roofing.

The Basics: What You Need to Measure

The first step when measuring your roof for metal roofing is to draw out an aerial view of your roof. This drawing doesn’t have to be perfect or to scale, but it does need to be clearly labeled with all the features of the roof in inches and feet.

Be sure to also include any porches or overhangs that are attached to your roof that you also want to be covered in the metal roofing.

Measuring your roof slopes can be helpful but isn’t necessarily required. If the pitch of the roof is known, the length of the panels needed in that area can be calculated.

Don’t Forget to Include Chimneys and Skylights

There are a couple of things you will also need to take into consideration, such as skylights, chimneys and any other roof penetrations. Always measure the dimensions of anything that protrudes from the roof.

Basically, anything that breaks up the smooth plane of the roof should be added to your drawing and labeled with measurements.

Determine the length of the metal panels needed for one side of your roof by measuring from the fascia board (the board attached to your roof joists) to the ridge (the peak) of the roof. For example, your roof could measure 12 feet to its peak. This number will tell you the total length of metal panels needed. Add an inch or two, depending on your preference for overhang. For example, if you measure 12 feet, then make the length 12 feet, 1 inch or 12 feet, 2 inches. Always measure in the middle of your roof and on each end, checking that the measurements are the same. In our example, we will need 15 panels, each 12 feet (plus an inch or two) in length, for one side of the roof. We will need a similar amount for the other side, based on its measurements.

Safety Considerations

When learning how to install a metal roof, understanding safety is the most important step. Always be sure to prioritize safety when working above ground.

Gloves and safety googles should be part of your roofing supplies and worn at all times to prevent injury. Always prioritize safety when working above ground.

  • Be sure there are no electrical wires or low branches hanging over the roof.
  • Secure your ladder at the base and at the point of roof contact. Test the ladder to be certain it will not shift under your weight.
  • Use proper fall protection equipment and be certain the system is anchored to your roof studs correctly.
  • Wear appropriate safety shoes when engaging in roof work.

While this overview can give you a good idea of what is generally required to install a metal roof, the process can be very complex and hazardous. A project of this scope is often best assigned to a professional installer. If you decide to hire professionals for your metal roof installation, thoroughly research and select a team that has experience in roof repair, the roofing system you want and that is insured (general liability and worker’s compensation insurance) and licensed as required by your state.

Residential Roof Estimation

How to Measure Area and Distance in Google Maps & Earth

Step One: 

You should start measuring by printing out a top view of your home. To do this, simply line up your house and click on the top corner to print.

Step Two:

  1. Frame your home back to the top shot. NOTE: You’ll want to be directly above and zoomed in as much as possible.
  2. Click the ruler icon on the left side of your screen.
  3. Switch the unit of measurement to feet.
  4. Click on a starting and stopping point, and you’ll get an estimated measure of distance.
  5. Start logging in your measurements.

Step Three: 

When complete, you’ll have a general idea of the size of your roof to send to a metal roofing supplier for an estimate.

Google Earth also offers a perimeter for the shape of the area that you can use to measure out the edges or area of a lawn, fencing, yard, the roof and more. As long as you keep in mind that these are only the most basic of guidelines, you’re going to be okay in your calculations. Since you’re using Google you’ll have to factor in any changes that may have been made since the satellite pictures have been taken and remember that the slightest changes may not be yet showing on your pictures.

Once you have a basic starting point you can go from there and make the necessary adjustments to have an accurate reading of the roof shape and size and factor in any other necessary adjustments that need to be made on your calculation.

Measure a roof with google earth –

What is Google Earth Pro?

Google Earth Pro is a desktop application originally designed to let you “travel the world without ever leaving your seat.” It allows you to experience both aerial and drilled-down street views of 3D cities through your web browser. Intended for touring and map building, it lets you import and export GIS data and view locations captured across various points of their history. As our valuation experts discovered, these very features can also be extremely useful for gathering and confirming property details needed for a statement of values analysis, virtual valuation and more — particularly when travel and access to sites are limited.

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Aerial Roof Measurements Are Now Easier

Don’t Hand Measure a Roof, Get A Roof Report Using Accurate Satellite Roof Measurements at Sky Roof Measure. We’re dedicated to saving your time, reducing your cost of business, improving your customer service, and profitability by providing your business with automated Aerial Roof Measurements. Our reports are unique because They are just as accurate as on-site measurements, Our valuable customers confirm this statement. Are you one of them? Try the technology that is saving your time, money and same day delivery. See how it’s all possible by signing up and ordering a roof report for yourself.

Our aerial roof measurement reports are drafted by expert CAD technicians and reviewed by a quality assurance professional, certifying absolute data accuracy on every report. Precision is paramount at Sky Roof Measure, and that’s how we guarantee a 95% or better accuracy rate on every plane, eave, rake, ridge, hip and valley. Be confident in your bids, and submit estimates that align to your profit goals.

 

Features of a Roof Reports

 
  • Accurate Roof Pitch Measurements.
  • Roof Measurements including Area, Rakes, Ridges, Hips and Valleys, & every edge is separately measured and identified.
  • CAD style drawings with colored lines identifying every type of roof edge.
  • Online access to your Roof Reports for your Employees, Subs and Suppliers with no software to install.
  • Multiple image providers for over 95% coverage of the USA & Canada.
  • Also supports file formats such as XML,RFX,DFX/DWG, ESX AND WRL.

We Do Things the Right Way

We challenge the status quo. We follow through with a commitment, doing things the right way. As team players, we represent your brand with passion and pride. we believe customers demand and deserve respect and appreciation and that is why we will go the extra mile to exceed customers’ expectations. Please contact us to learn more or to schedule a  estimate.

What’s included?

  • 3D Diagram
  • Roof Area
  • Pitch Diagram
  • Accessories measurements: eave, rakes, hips, ridges, valleys, wall flashing.
  • Parapet Walls

 

Roof Measurement Companies

Roofing Calculator

The calculated area is only an estimation. In cases where a roof has a complex shape, such as in the image to the right, measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area. The calculator cannot account for complex shapes based on a measurement of square footage alone. The Area Calculator can be used to calculate the area of a variety of simple shapes that together can comprise the area of the roof. Using the aggregate area of these simple shapes can yield a more accurate roof area to be used with the Roofing Material Calculator.

The most common roofing materials used in the United States include shingles, membrane roofing, and ceramic tile, all of which have different life spans. Shingle roofs typically have a life span of 15-30 years, while membrane roofs usually last 5-15 years. Although ceramic tile roofs are expensive, they can have a life span of over 100 years.

How to calculate the roof area

  1. Begin with calculating the area of your house in a plane parallel to the ground. If your house is rectangular, all you need to do is multiply the length and width of the building. If the shape of your house is more complex, simply enter the total area (after measuring the exterior dimensions) into the appropriate box.
  2. Determine the roof pitch of your house. Roof pitch is the slope created by the rafters. If you don’t know how to calculate it, head to our roof pitch calculator. You can input it either in degrees, as a percentage or as a ratio of x:12.
  3. Once you know these values, you will be able to calculate the roof area. Begin by converting the roof pitch to an angle expressed in degrees, using the following formulas:

pitch(%) = x / 12 * 100%

pitch(deg) = arctan [pitch(%)]

  1. Then, use the following equation to find the total area of the roof:

roof area = base area / cos[pitch(deg)]

 

Roofing Tips: Roof Slope & Style

There are two main categories of roofing: sloped and flat. A flat roof has a slope of 2 in 12 or less. The run always remains constant at 12 inches. A low slope roof is anywhere from 2 in 12 to 4 in 12. Conventional slope roof range between 4 in 12 and 8 in 12. Anything more than 9 in 12 is considered steep. Steeper-sloped roofs are considered more aesthetically pleasing and last longer. These benefits do not come cheaply though. A 12 in 12 roof can cost up to 50% more than a 4 in 12 roof. This is because a steep-sloped roof requires a taller chimney and more lumber for framing. However, the end result may be well worth it as your roofing material is estimated to last up to 50% longer and will require less maintenance.

Roof styles or types are usually predesigned by the builder of your home. They determine what kind of materials you can have on the roof, due to the slope. The first option is a flat roof. This style is just like a long board across the top of your home. A gabled roof looks like two sides of a triangle. A shed roof is slanted down one way, either towards the left or right. Gambrel roofs resemble barn roofs. Finally, mansard roofs have a flat top with sides that lip over the top a little and hang over the home.

What is a Roofing Square?

Roof surfaces are measured in “squares”. A roofing square is equal to 100 square feet of the roof.

To determine the number of squares on the gable roof example in this post, divide its total of 24,000 square feet by 100 (24,000 ÷ 100 = 240). This means you would need 240 squares of shingles to cover that roof.

A roofing contractor might even charge you more labor fees for a roof replacement job by claiming that your roof is larger than it is or that it has a more complex layout than a standard roof. With the data from your Satellite Roof Report, you can cut out unethical charges and miscalculations in the early stages of your project. The Roofing Calculator keeps your roof replacement project transparent and free from costly surprises.
Roof estimates online

Rooftop Measurements – Roof Top Measurements USA

Getting accurate roof measurements can be difficult but with this roofing calculator, you’ll be well prepared to take measurements of any roof. Whether you’re a contractor looking to train a new employee or a homeowner looking to do some renovations, you’ll find this guide helpful for any roofing project. Use the step-by-step guide below to accurately measure your roof and estimate roofing costs.

Rooftop Measurements

  • Prepare roof measurements and professional estimates from anywhere.
  • Print email and share digital reports with property owners or with your team. 
  • Eliminate unnecessary trips to the job site. 
  • Spend less time on roofs and more time with customers face-to-face.
  • Impress clients with new roof simulations, roof diagrams and other visuals.

How to Measure Roof Slope from On the Roof

To use the direct roof slope measurement procedure, in addition to safe access to a roof that won’t be damaged by touching or walking on it, you need: a tape measure and a carpenter’s level. This procedure to measure roof slope can be performed on the roof or from a ladder at roof edge. 

  • Hold the carpenter’s level in a horizontal position with one end touching the roof surface.
  • Measure out 12″ along the level bottom edge – the green line in our sketch. Mark this point on the leve.
  • Measure straight down to the roof surface from the mark you just made – the blue line in our sketch.
  • Read that distance in inches. The result is inches of rise per foot of run.

Metal Roofing

Metal roofing is typically sold by the sheet or panel. To determine the number of sheets or panels necessary to cover the roof, divide the width of the roof by the sheet or panel coverage width.

Shingles

Shingles are typically sold in bundles. Depending on the type and brand of shingle, it may take a different number of bundles to make a square. When cost comparing shingles, remember to base price on squares and not on bundles.

Other Roofing Materials

The basic square footage and length calculations detailed above should help estimate overall cost for other materials. Additional roofing materials that should be accounted for include items such as leak barrier, deck protection, drip edge, rake edge, ridge vents, and hip and ridge caps.

aerial roofing

Aerial Roofing Estimates

Don’t Hand Measure a Roof, Get A Roof Report Using Accurate Satellite Roof Measurements at Sky Roof Measure. We’re dedicated to saving your time, reducing your cost of business, improving your customer service, and profitability by providing your business with automated Aerial Roof Measurements. Our reports are unique because They are just as accurate as on-site measurements, Our valuable customers confirm this statement. Are you one of them? Try the technology that is saving your time, money and same day delivery. See how it’s all possible by signing up and ordering a roof report for yourself.

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Confidence In Your Bids & Bottom Line.

Our aerial roof measurement reports are drafted by expert CAD technicians and reviewed by a quality assurance professional, certifying absolute data accuracy on every report. Precision is paramount at Sky Roof Measure, and that’s how we guarantee a 98% or better accuracy rate on every plane, eave, rake, ridge, hip and valley. Be confident in your bids, and submit estimates that align to your profit goals.
 
In most areas of the United States, a satellite image provided by Sky Roof Measurement  of a home’s rooftop is perfectly suitable as your basis for a complete and accurate roof measurement. Sky Roof Measurement has integrated this technology into a simple user design. Search by address in the Sky Roof Measurement app; click to open the satellite view and zoom right in. Now, just trace the linear features of the roof, which instantly calculates precise measurements. Now you’re ready to see a detailed report with the press of a button. It’s all there, the total square footage, roof squares, waste factors, and professional roof diagrams. In no time, you’ll master this simple application with your tablet or smartphone. Get ready to work more efficiently and more profitably!
 

What Should Be Included on Your Roof Estimate?

Knowing the basics is just the start. You also need to know why these should be included in your roof estimate? You don’t want to have all of this time and money invested and not know why. Knowing this can help you figure out which roofing companies are legitimate and which roofing companies are trying to swindle you.

  • Payment Information. Every roof estimate should explain which parties are responsible for specific portions of the roof project. If specific aspects of the roofing project will be outsourced to other companies, these parties and responsibilities must be identified in detail within the estimate. Every last detail of the payment terms should be explained in-depth including information about down payments, progress payments, end payment, and payment methods. Furthermore, the estimate should include a provision for you to hold back the final payment until you are completely satisfied with the job.
  • Approximated Timeline. The estimate must spell out the project’s start date and completion date. This can change if more damage is found once the roof repair starts.
  • Costs. The roof estimate should include the cost of materials and labor. Even the cost for the pulling of permits should be noted. If the project will result in any sort of debris or a mess of any other sort, the estimate should explain if the roofing company is responsible for the cleanup and removal. 
  • Roof Estimate Materials. The best roofers are willing to explain the type of shingles, flashing, underlayment and ventilation that will be used in the project in extensive detail within the estimate. This information should be highly specific. For example, it should explain the thickness of the underlayment, the locations of the flashing, the type of sealant for areas that mandate waterproofing (nail holes, flashing etc.) and the sizes of the fasteners and nails that will be used for the project. Even the brand of the products that will be used for your roofing project should be noted. 

How Many Estimates Do You Need?

Many people say you shouldn’t undertake any type of home improvement project until you’ve gathered three estimates. The reality is that you should get as many estimates as you need to make an informed decision you can feel good about.

When you talk to roofing companies, ask how long they’ve been in business, what kind of experience they have and how much your project will cost. You can usually judge the quality of their customer service based on their answers. Instead of limiting yourself to a set number of estimates, consider roofing companies until you find the best one for your project. 

 

aerial roofing

Accurate 3D Aerial Roof Measurements Reports

At Sky Roof Measure we create accurate 3D roof models from intelligent aerial images and generate a detailed PDF report. We generally serve Roofers and Insurance Professionals.

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We have extensive training and experience in the interpretation of aerial imagery and the creation of ACCURATE 3D roof models, our process includes; fetching aerial images > creation of the roof model > generation of PDF report.

We began producing 3d roof models from January 2010, we offer consulting services in regards to software selection and human resource training for other companies within the aerial roof measurements industry.

By combining multi-angle aerial images with advanced analytics, our reports provide precise area, pitch, and length measurements. Colour coding distinguishes every detail, from ridges, hips, and valleys to verges, eaves, and flashings. Fast report turnaround saves you time. High-resolution aerial views and 3D diagrams make your tender stand out.

Our roof measurement reports provide a detailed overview of every aspect of your roof. Each report comes with aerial images of the property, a 3D diagram of the roof, length, area, pitch and notes diagrams, as well as a summary page with waste table calculations. Our EagleView generated reports include length diagrams with color-coded details and total lengths for ridges, hips, valleys, rakes, eaves, flashing and step flashing. The Wall Measurement Reports provide a detailed analysis of your wall layout and all the critical dimensions, including the area each wall feature These professional-grade reports are used by all types national companies and come with an Accuracy Guarantee. All the measurement’s final report will emailed to you within 1-4 days.

Why Use Drones for Roof Measurements?

One of the main benefits of drones is their size and maneuverability.  This feature allows them to fly a few feet away from various building types and capture high-resolution imagery (sub-centimeter per pixel resolution) for residential, commercial, flat and metal roofs.

Features / Application / Technical Info.

    • 3D Roof Diagram
    • Aerial Images (Top, N, S, E & W)
    • Length Diagram
    • Pitch Diagram
    • Area Diagram
    • Notes Diagram
    • Report Summary
    • Waste Calculation Table

Aerial Reports is a quick and easy way to get detailed and accurate roof measurements anywhere you want without leaving your office. Aerial Reports uses the best of the industry’s Proven off-the-shelf software and available aerial imagery to provide Roofers, Contractors, Insurance Carriers and Adjusters a Customized, Detailed and Accurate Roof Measurement Reports. Never miss another opportunity to provide an estimate due to distance, location and weather conditions. Our off-site roof reports help you gain a Competitive Edge by providing an on-time and most accurate roof report. Simply provide us the address of the property to be measured and we’ll do the rest.

Our Goal & Specialization

Our goal is to streamline your day to day operations by automating your employees and allowing them to work more efficiently with the help of our interactive Roof Reports. When your roof report is ready, it is not just emailed to one person, or available for download into a single desktop application, it is available to anyone in your company using a web based user account. All your reports saved on our database and you can view and download any time as per your convenience. Our 3D Roof reports include Aerial Images, rakes, flashing, valleys, ridges, multiple slope areas, pitch, linear measurements, total squares, recommended waste, etc. Our System can Export and import file formats such as XML,RFX,DFX/DWG and WRL.

rooftop measurements

How To Figure Roof Pitch

There are two suggested ways to measure a roof pitch.

The first is from the top of the roof. Simply mark a level at 12″. Keeping the level balanced measure the distance from the level to the roof surface. If a roof has many layers of shingles your measurement could be slightly inaccurate using this method

The second is to measure from the bottom of the rafters. Measuring the pitch is still the process but you you can measure the roof pitch from three different locations using this preferred method. The underside of a rafter on an overhang at the bottom of the roof, the underside of a barge rafter on the gable end, and the underside of the rafter in the attic.

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If you’re having a roof installed, keep in mind that costs go up as the roof pitch becomes steeper. This is because contractors will need specialized equipment to put steep-pitched roofs into place, and this task can mean additional safety risks for the workers, so that will have to factored into the expenses.

There’s good news, though; having a steeper pitch means that water and ice flows off the roof better instead of sitting on the roof and potentially causing damage over time. A steep pitch can then actually be considered a good home improvement investment.

Roof Measurement Companies

Method Three: 

If you know the total height of the peak and the width of the roof you can also find the pitch with a little math. For example, if the peak is 4 feet and the total roof with is 20 feet, the total rise is 4 feet, or 48 inches.

The total run is the distance from the peak to the edge of the roof, which in this case is the total width divided in half, which is equal to 10 feet or 120 inches. Since pitch is the rise over a 12 inch run, divide the run by 12 to get the multiplier, in this case 120 ÷ 12 = 10.

Now, divide the rise by the multiplier to get the pitch, e.g. 48 ÷ 10 = 4.8. The pitch of this roof is 4.8:12. The calculator above can handle much of this math.

Roof Pitch Calculator Results Explained

Slope – The slope of a roof is represented as X/12, where X is the number of inches in rise for every 12 inches of run.  This is very useful information for many purposes, especially for roof framing – the slope, sometimes called pitch, is calibrated on speed squares.

Angle – The angle of a roof is the same as the roof’s slope, except instead of being represented as X/12, it is represented in degrees.  This is useful because sometime you may need to cut a bevel with your circular saw that is not calibrated using roof pitch style – this setting on circular saws is calibrated in degrees.

Rafter Length – The rafter length results, from this calculator, represents the length of line L on the diagram(s).  Note that this is not the actual length of the rafter.  It is the length of this portion of the rafter.  If you plan to have overhang, etc. the rafter member will be longer.

Pitch – Is the incline of the roof represented as the ratio of rise to the span (twice the run).  For example, if the roof rises 4 feet and the span is 16 feet (twice the run), then the pitch is 4/16, or 1/4.

rooftop measurements

Rooftop Measurements

Getting accurate roof measurements can be difficult but with this roofing calculator, you’ll be well prepared to take measurements of any roof. Whether you’re a contractor looking to train a new employee or a homeowner looking to do some renovations, you’ll find this guide helpful for any roofing project. Use the step-by-step guide below to accurately measure your roof and estimate roofing costs.

                       Call Us   +1 (940) 233-5566

Not a fan of drawing the roof yourself? You can order roof measurements from Sky Roof Measure and our  technicians will create the measurement diagram for you. Within hours, the completed project is uploaded into your Sky Roof Measure account. The sketch is a dynamic, fully editable drawing that you can customize with inspection photos and notes and use to create an estimate in Sky Roof Measure . Then, have your customers sign the contract right on your device. Check out our pricing page to see the value.

Our aerial roof measurement reports are drafted by expert CAD technicians and reviewed by a quality assurance professional, certifying absolute data accuracy on every report. Precision is paramount at Sky Roof Measure , and that’s how we guarantee a 95% or better accuracy rate on every plane, eave, rake, ridge, hip and valley. Be confident in your bids, and submit estimates that align to your profit goals.

roof quotes online

We are a remote roof measurement service that uses the latest aerial and satellite images to map and measure any roof anywhere. Rooftop Measurements utilizes state of the art measurement software and the latest aerial and satellite images to create quick and accurate roof measurement reports.

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.

This article shows how simple measurements can give the roof area without having to walk on the roof surface. This article series gives clear examples just about every possible way to figure out any or all roof dimensions and measurements expressing the roof area, width, length, slope, rise, run, and unit rise in inches per foot.

Why Use Drones for Roof Measurements?

One of the main benefits of drones is their size and maneuverability.  This feature allows them to fly a few feet away from various building types and capture high-resolution imagery (sub-centimeter per pixel resolution) for residential, commercial, flat and metal roofs.