Advantages/ K6 I' ^4 @- B- ]- R
Very durable in cold weather 4 r; w5 E9 i4 ~! Z) W& \* iHigh percentage of recycled material and are 100% recyclable( C4 v0 W- s+ i+ x1 Q) _7 h
Disadvantages% I! S) M7 L( Z7 G# X, v# x
Rusting (require maintenance to prevent corrosion) 7 D& M: |" b, e; @: o4 F/ k j; qCopper and lead roofs can be targeted by metal thieves- M0 l3 E6 s. X9 x6 ~4 [' }
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure , L* S# x) r C$ ^Cellular and radio reception may be negatively impacted
Metal roof ??# z) Z0 B o# W) d# v# W
what's going to happen in a hail storm, will it be very loud ??? * U; z3 V9 N: ^* D) TSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 ! M N, M. I4 Y l
Metal roof ?? & e4 z+ N5 \% P6 _' lwhat's going to happen in a hail storm, will it be very loud ???; ^' ^* ^- m% ~5 k& X
Summer raining seas ...
icing 发表于 2014-6-7 22:36 & l) c& [ a/ h# u
Metal roof ??3 W, v8 t& @+ T5 h, e% Y8 ]
what's going to happen in a hail storm, will it be very loud ??? 3 Q" R' V& c) c* S8 j8 \$ M ~Summer 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.