Advantages 8 V+ T F3 ?2 ] Z& j- aVery durable in cold weather% s' x4 m: Y+ K3 m( ]" Z
High percentage of recycled material and are 100% recyclable. ? ]. ?6 d4 g. X, W& p
Disadvantages/ p7 M6 u+ N# j H0 p k0 |# \: L( K
Rusting (require maintenance to prevent corrosion)4 i4 v6 _) Z8 u
Copper and lead roofs can be targeted by metal thieves, D- U( ^3 I1 C* I
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure& M5 ~* U: x' ?" J4 p8 P
Cellular and radio reception may be negatively impacted
Metal roof ??, G' c! R; n; |/ q: ?9 M% q: o
what's going to happen in a hail storm, will it be very loud ??? $ Z O" g$ L2 @3 gSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 ( x9 G" k$ x5 TMetal roof ??- c7 ^; H' H, H- w
what's going to happen in a hail storm, will it be very loud ??? $ A! N2 k- k. i* G5 FSummer raining seas ...
icing 发表于 2014-6-7 22:36 - X5 V y$ W6 [, [1 \0 a! L8 v$ C
Metal roof ?? 4 I8 w7 m/ e3 W. T; E( |1 I+ [what's going to happen in a hail storm, will it be very loud ??? + u% v: V' H5 bSummer raining seas ...
) U5 B# t+ J- |* o6 g5 z: {7 d5 qthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.