翻译一下,不要有道词典的

翻译一下,不要有道词典的
Regularly irrigated green roofs are regarded to be resistant to sparks and radiant heat.
Roofs that are not irrigated are typically considered fire resistant provided they meet
the following criteria:
? The growing media is 2 inches deep, with no more than 20% by weight of organic
matter
? Gravel or concrete breaks occur in the vegetation every 100 feet, at least 4 feet
wide
? Vegetation zones occur at all roof penetrations and at perimeter walls with openings
? Safety strips are kept free of flammable vegetation
Fire resistance guidelines are available from Underwriters Laboratories (UL) Inc. 790,
Tests for Fire Resistance of Roof-Covering Materials; the International Conference of
Building Officials (ICBO); and FLL.

灌溉绿色屋顶是定期看作是耐火花和热辐射量.
屋顶,通常被认为是不灌溉阻燃只要他们见面
下列条件:
生长媒介是2英尺深,没有超过20%的有机的重量
物质
发生在碎石或混凝土打破植被每100英尺,至少4英尺
宽
植被区发生在所有屋顶、穿透及墙壁在周界开口
安全贴片保持没有的
没办法,我只有有道的,我看是帮上能才好哦!

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