White roof - what kind of roof do I have?

My building is hoping to paint or coat our black roof white – we want to keep the building cooler, reduce the heat island effect, etc.  The NYC.gov Cool Roofs website asks us to identify what kind of roof we have  – “The Cool Roof coating can only be applied to a flat roof covered with smooth asphalt, EDPM rubber or smooth aluminum”.  I’m unsure what kind we have – it’s about three foot wide black strips covered by what look like tiny black pebbles.  Can anyone help me identify what it is?

GBanner

in Energy Efficiency 13 years and 9 months ago

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bowl-of-dicks | 13 years and 9 months ago

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    ["user_nicename"]=>
    string(17) "bowl-of-dicks-2-2"
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    string(15) "cf80q@yahoo.com"
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sounds like a ballasted, built up asphalt roofing system. Very common.

wyckoff | 13 years and 9 months ago

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    string(34) "$P$BAMrRIKB4WASdCkuxEITHMhYQsE5yr."
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    string(7) "wyckoff"
    ["user_email"]=>
    string(25) "michael.w.cooney@citi.com"
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    string(22) "/forums/users/wyckoff/"
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probably asphalt