What are Satellite Roof Measurements?
Satellite Roof Measurement are measurements taken from an aerial view of your home. The measurements are then calculated with software. You can actually do this on google maps with the aerial view of the house. There is even a measuring tool that can tell you how many feet by how many feet the roof is.
If the house is not actually square then you have to add each section together. Many roofers add 10 % of the whole measurement to make sure they have enough materials. This helps if you are going to the home improvement store and have to know how many shingles you need.
Knowing the measurement helps you know how much of the other materials you need as well. Most materials for roofs are broken down by square footage. This way you will not end up buying too little or way too much. It always good to buy a little extra.
Estimating your Roof Size: Please use this guide to estimate your actual roof area. Your garage and patio also need to be added to estimate the actual roof area. COMMONLY, your net roof area is about 25% greater than your living square footage.
Pitch (Slope) of Roof: This is the rise/run in feet. The larger the slope, the greater your actual roof area.
|Pitch (slope)||Roof Angle||Area % Increase|
Calculate the Surface Area of the Roof
You’ll notice as an area is drawn the area and perimeter results are displayed in the bottom right corner. With a single pitch roof you’ll have only one area result that relates to the entire footprint or perimeter of the roof. Both metric and imperial measurement systems are displayed in a popup menu over the results area.
Take your area result and multiply it by the pitch multiplier (or slope correction factor) found in the table above to arrive at the roof’s surface area. Now you’re ready to price out the materials.
For multi-pitched roofs simply add the areas of all common pitches together by toggling layer visibility from the summed layer (identified by the ‘eye’ symbol) at the left of the layers control.