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Select your own roof on the map of london tower bridge

1. Find your house

Enter your postcode or address to help you find your own house.

2. Select your roof

Click in the map on all corners to select your roof, preferably without obstructions and South facing.
(Clear selection)

3. Highlight your gutter

Click inside the selected area until you highlight the lowest side of your roof (select any side for flat roofs).

4. Use dropdowns below

Use the dropdown boxes below to estimate your roof angle, level of shading and your energy usage.

 
Roof size:
Orientation:
Angle of roof (degrees):
Roof shading:
Yearly electricity usage (kWh):

Do you own or rent this house?

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