How Do You Measure A Roof For Solar Panels

Select the style that best matches your project and move on to step 1.

How do you measure a roof for solar panels.

Yes you can successfully have solar panels installed on the flat roof of your home or business. Select the best roof area your panels should fit. To get the area of the roof you then need to divide the area you calculated on the ground by the cosine of your angle in degrees. The hip style roof is in blue and the gable style roof is in red.

So if your south facing roof is 3 4 x 5 8 meters you have 19 72 square meters of roof space. Roughly draw out your roof on a piece of paper. North north west and north east are all suitable. In fact solar panels can vary in size from model to model from the same brand.

Avoid southern facing roofs. An easy way to do this to enter this equation into google. Here s how you prepare what we need to do a detailed quote for you. Please use slider to zoom into your particular roof.

Measuring your roof slope from the ground let s round it off and call it 35. Google s project sunroof gives building by building details and now has data for parts of all 50. Flat roofs have a minimal slope allowance that will accommodate solar pv panel systems. For spring and fall multiply your latitude by 0 98 and subtract 2 3 degrees.

Solar panels do not come in standard sizes which means that you may need a different number of panels depending on the brand you choose. These flat roofs are also commonly known as. You need a sunny roof to benefit from solar panels but yours may be sunnier than you think. Remember it doesn.

Also be sure the stanchion flashing fits beneath the roof shingles to prevent leaks. Screw each stanchion through the roof and into a roof rafter. Solar panel size. Because the steep angle of your roof might already be higher than the optimal angle for production the best you can do is lie your panels flat against the roof.

You now need to trace the roof area you wish to install solar on. In this video this old house energy expert ross trethewey installs solar panels. A roof having a rise of 0 25 inches over a 12 inch run is known as a 12 pitch roof. We have examples of two of the most common roof styles below.

If you do plan to optimize solar collection in every season use the following calculations.