Advantages 6 B, x2 p* z7 P7 }7 AVery durable in cold weather. }; X' { U: F) _
High percentage of recycled material and are 100% recyclable& X: K; k7 f4 w
Disadvantages6 z# V/ l# H, v2 i* I6 g" g
Rusting (require maintenance to prevent corrosion) . \+ v& ?. b- c/ f2 M1 uCopper and lead roofs can be targeted by metal thieves5 ^2 w" c7 r0 ^4 q6 m) @- |, P
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure% e( O' { Y# }; L" _* Z& U: [2 c# u
Cellular and radio reception may be negatively impacted
Metal roof ??( z, Y1 A- S* {9 j- l
what's going to happen in a hail storm, will it be very loud ??? 3 p6 `9 m2 j) \/ b- g K* vSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 - |0 r i% s" N# x8 l. T* }
Metal roof ??+ ^/ z' y% w0 V
what's going to happen in a hail storm, will it be very loud ??? 5 ] E( R# `7 m) P! QSummer raining seas ...