Advantages! O0 K1 e: Q& E) l: A
Very durable in cold weather* i- H2 }* g* y |, l
High percentage of recycled material and are 100% recyclable' K3 [( Q& c/ p: z5 J2 D" [
Disadvantages0 b# `4 V* [2 @+ _& Q
Rusting (require maintenance to prevent corrosion) * b7 ?2 ]2 i# W& K- X: {Copper and lead roofs can be targeted by metal thieves3 R' L" ?) }0 G$ j( y
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure * A1 j9 M+ q8 d; R6 g9 }Cellular and radio reception may be negatively impacted
Metal roof ??0 N5 ]4 _5 |# _3 @& p( {
what's going to happen in a hail storm, will it be very loud ??? . s* } N; @" ^' c4 nSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 0 g k2 z f0 y$ r- @
Metal roof ??+ g3 f! f$ z7 n: O
what's going to happen in a hail storm, will it be very loud ???% Q+ q9 T8 Q @% ]5 {
Summer raining seas ...
icing 发表于 2014-6-7 22:36 " j1 I4 N' T0 F4 V: y
Metal roof ??3 ~! H8 A8 _6 l2 [8 m+ R
what's going to happen in a hail storm, will it be very loud ???& x& p4 q0 a" V1 o
Summer raining seas ...
" S5 W, k9 F7 x4 `" Ythat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.