Advantages 2 R) S8 c+ o: S- DVery durable in cold weather 2 H* f8 D! R9 e* V" K k' j JHigh percentage of recycled material and are 100% recyclable ' G( E6 J6 D# n/ rDisadvantages p, ~( O4 t3 C: u; y
Rusting (require maintenance to prevent corrosion) & P6 P# n/ p1 C5 {" \$ j# `! ICopper and lead roofs can be targeted by metal thieves! Z+ }" |& j/ p1 }: \2 H
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure6 t: x, ^3 v7 b& V" A6 L
Cellular and radio reception may be negatively impacted
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what's going to happen in a hail storm, will it be very loud ??? / N! v1 w9 X: j9 h: H lSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 " u9 ?# d7 i. [8 t+ ? i
Metal roof ??( r) v6 a. ^! i( B1 U
what's going to happen in a hail storm, will it be very loud ??? 8 c9 h) }' T: E; \8 D1 WSummer raining seas ...
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that is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.