Advantages # R0 E9 @ n0 T& oVery durable in cold weather : a2 Y; Q1 |$ C2 XHigh percentage of recycled material and are 100% recyclable 9 b* k* ]2 F9 C7 J" V: MDisadvantages) Z# c4 u1 {. P' M
Rusting (require maintenance to prevent corrosion) Z& \, ?, Z! D) F$ R9 a5 nCopper and lead roofs can be targeted by metal thieves) X+ }% q+ L2 ]4 c- e$ Q
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure 9 ~8 i- Q) g9 R& N/ z4 C# VCellular and radio reception may be negatively impacted
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what's going to happen in a hail storm, will it be very loud ??? 0 T0 b% ^1 B2 u; i cSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 " P4 B' A, z- R! } o3 X! q& f
Metal roof ?? j* ~- z% X" i( [
what's going to happen in a hail storm, will it be very loud ??? 0 T5 P6 T4 g! L, A0 K. qSummer raining seas ...
icing 发表于 2014-6-7 22:36 0 b/ N6 u% |8 sMetal roof ??: O8 a; t9 q( G* y) S9 n& z) e
what's going to happen in a hail storm, will it be very loud ???, [9 C$ N1 D7 ~" M
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.