Advantages1 b/ B. M+ Q! O' c
Very durable in cold weather" ]7 o* q# v; g2 R' I$ f
High percentage of recycled material and are 100% recyclable * ~5 G0 E. a0 I& ?, N5 S- cDisadvantages 9 q0 }; @# Q$ j9 IRusting (require maintenance to prevent corrosion) 7 a" n5 u" ~2 y/ U- k7 B8 X7 V' ^Copper and lead roofs can be targeted by metal thieves1 u/ T' E. k# S$ g2 z
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure$ S9 T! p; L! W' Q5 f9 b
Cellular and radio reception may be negatively impacted
Metal roof ??! B v* D8 V- `, i0 T/ @, h s
what's going to happen in a hail storm, will it be very loud ???. ?5 _1 y1 N% P$ Q Y; Y
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 % @% ~# z& x8 R" ~4 ]' s
Metal roof ?? 0 l7 @ z8 {& z+ Y/ l" n5 |0 J% |what's going to happen in a hail storm, will it be very loud ???! z+ ^8 w1 R5 r n
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.