Advantages+ M. ~% v$ ^# ]' F# r* g
Very durable in cold weather 8 l3 A. C7 s8 c c: M6 oHigh percentage of recycled material and are 100% recyclable+ n9 I' P/ z: J0 V3 L5 C( m
Disadvantages ) t* r# F* d2 K4 j3 gRusting (require maintenance to prevent corrosion) ( @/ G; X& j3 ?5 c% ~, g6 NCopper and lead roofs can be targeted by metal thieves! K1 I9 |& w( f5 B* x- k
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure & J! x: o$ F* m2 jCellular and radio reception may be negatively impacted
Metal roof ?? 4 R5 c* Q" l4 ^- C$ `( Z( H# Hwhat's going to happen in a hail storm, will it be very loud ???$ g4 f) s/ D; Q5 d3 m) K
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 2 |% F# e- S! ^( b8 _7 k
Metal roof ??0 ]( @* }4 V @7 Z+ U" o
what's going to happen in a hail storm, will it be very loud ??? 6 K7 G: o9 l! cSummer raining seas ...
icing 发表于 2014-6-7 22:36 $ p/ S& e2 V+ L! c/ ]9 x0 z
Metal roof ??6 q# j- n) r* O9 d
what's going to happen in a hail storm, will it be very loud ???( `1 ^+ ?* u% N( q% e/ c
Summer raining seas ...
/ V* g9 q( ^- x/ z( S& P- Q9 c3 athat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.