Advantages + |5 u; K, M" }7 AVery durable in cold weather D! {0 o! v5 ^" A
High percentage of recycled material and are 100% recyclable; G" o7 r9 A& {+ s1 V: V
Disadvantages! E9 Q( O- R% ^+ r
Rusting (require maintenance to prevent corrosion) $ t0 k5 d" u2 F) VCopper and lead roofs can be targeted by metal thieves) w7 n! C" A C2 }( {1 q
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure! h# a" G; h- V
Cellular and radio reception may be negatively impacted
Metal roof ??8 M0 {8 M/ f0 {( }5 a* V
what's going to happen in a hail storm, will it be very loud ???8 \1 a+ p* u5 n8 j$ b& B# }, a0 Z
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 / Z/ T% ~' w$ y' R2 r3 b' DMetal roof ?? 4 O! u; `! W& e5 Y7 L" qwhat's going to happen in a hail storm, will it be very loud ???1 x: Q) L% A( T! y l4 k
Summer raining seas ...
, K( W9 w. R- W' Z, }; cthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.