private benefits of green roofs:
Some of the benefits for the building and its users are:
increased thermal insulation and shading:
-Green roofs can lower cooling costs by approximately 25% for a one-story building with 4” of growing medium.
increased acoustical insulation:
-Growing medium blocks low frequencies and plants block high frequencies. A green roof with 5” of growing medium can reduce outside noise by 40 decibels, and one with 8” can reduce outside noise by 46-50 decibels.
longer membrane life:
-membranes can be expected to last twice as long because of reduced exposure to uv and thermal swings.
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