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    3. why are tops of buildings often green
    why are tops of buildings often green

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    0  Views: 823 Answers: 3 Posted: 13 years ago
    Tags: buildings
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      3 Answers

      Copper sheeting on a roof will oxidize ... the green colour is referred to as patina.

      13 years ago. Rating: 7
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        The colour denotes a roof made of copper sheeting usually

        13 years ago. Rating: 6
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          I have no idea but, Obama is probably giving the building owners some of  YOUR tax money to go "Green," by growing vegetation to absorb rainwater and provide insulation and creating a habitat for wildlife, all to  help to lower urban air temperatures and mitigate the heat island effect in an effort to save the planet, WBMG


           


           


           

          13 years ago. Rating: 3
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            Ann

            Very funny.
            commented 13 years ago


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