energy efficiency rating seven model houses with multi coloured roofs |
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| navigate by keyword : and architecture background building built business certificate change chart choice climate comparison concept conservation construction design diagram digitally economy efficiency efficient electricity energy environmental estate finance fuel generated generation graph green house ideas illustration image industry insulation isolated issues lifestyle model multicolour orange performance power rating real red residential resources roof saving shape structure supply sustainable symbol technology white yellow |
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| 3D illustration of seven model houses with colored roofs, red, orange, yellow and green, forming an energy efficiency rating. Isolated on white background |
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