Advantages% ^$ c' G+ j: O+ F$ |
Very durable in cold weather ( G8 N" Z* q2 K: p6 d) A7 @3 n$ BHigh percentage of recycled material and are 100% recyclable 5 L& j5 I }# s) r3 GDisadvantages 8 E5 b0 n, _6 ?$ oRusting (require maintenance to prevent corrosion) ) \9 G0 W# G; v3 j# [( vCopper and lead roofs can be targeted by metal thieves: @( L. h! a6 c& U4 u9 I1 l, T2 v8 B
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure * }7 s6 Z; `3 e* E* \6 QCellular and radio reception may be negatively impacted
Metal roof ??" ~$ @% k$ z- m# V# J
what's going to happen in a hail storm, will it be very loud ??? ! t* n. [$ X& F( f/ ^) SSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 , ?5 O! v. j6 L
Metal roof ??# M$ [5 }5 A) x2 T1 K, Q
what's going to happen in a hail storm, will it be very loud ???( Q8 [* C, w) U/ c- k& H
Summer raining seas ...
8 {* F9 [ |: Z% F9 Z: [, ]1 pthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.