Advantages9 ?. h; ?, V" e2 }3 q
Very durable in cold weather/ a H9 Y( b, Z1 U2 R0 h. i# B4 d
High percentage of recycled material and are 100% recyclable8 }/ a' ^' Z( m% S0 Q! N3 w
Disadvantages* \" y( O' n; w7 S7 j
Rusting (require maintenance to prevent corrosion) $ x) M/ I/ M, j1 v* h- b4 [Copper and lead roofs can be targeted by metal thieves* ~! N( e' E) o& E
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure. X" d9 Z2 g$ {+ W! ?
Cellular and radio reception may be negatively impacted
Metal roof ??$ D1 i; D# ?) W" {; T
what's going to happen in a hail storm, will it be very loud ???0 q# F- s; q# U9 z
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 4 X, G( X1 y- n; _7 w# qMetal roof ?? R5 Z3 }! z% G& K# N" l+ e4 qwhat's going to happen in a hail storm, will it be very loud ???6 q! \' O$ u d7 W
Summer raining seas ...
icing 发表于 2014-6-7 22:36 8 h4 |. H k, W& l% a( k
Metal roof ?? 8 L! z: T6 {, y% |* M. p# }what's going to happen in a hail storm, will it be very loud ???0 d. ]0 w6 _) O
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.