' P( U4 N: I! m. L5 K) Y0 r被风掀下一块可以杀人于无形。风大的地区应该不好不适合。还有金属导热快,冬冷夏热是免不了的,夏天万一要上roof维修还有烫伤的危险,夏天摸摸你的车子。遇上雷电那就更过瘾了。 " a9 F4 l' Q4 G W# w4 K F# ]! e' A: i! Y4 n
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Advantages& C9 b. e8 N. o5 R! G9 E* z" I; ?
Very durable in cold weather 3 I% `' @+ G" A% oHigh percentage of recycled material and are 100% recyclable6 O' H) j4 o4 n3 @) c) }
Disadvantages' s( G. ] A0 E/ z4 y: W% u
Rusting (require maintenance to prevent corrosion) ) M' K4 b6 m3 a7 k3 d2 o3 t; W7 o6 YCopper and lead roofs can be targeted by metal thieves ( s; r6 _$ ]9 b4 `1 Z* l8 vHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure2 q3 ~1 e6 t( z" a9 B' M+ W3 K
Cellular and radio reception may be negatively impacted
Metal roof ??% ]$ {" l) ]- D% \3 m; ^
what's going to happen in a hail storm, will it be very loud ???7 u# x. T2 Z3 u+ w* a! b* Q
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 - G: v4 L# ?9 ?! _. t& L6 K
Metal roof ??- p2 n/ d, v' b
what's going to happen in a hail storm, will it be very loud ???* X( t) z6 e! z/ d, ?7 N0 ^
Summer raining seas ...
icing 发表于 2014-6-7 22:36 l$ [" T1 v/ `) H r7 J
Metal roof ??4 Q8 \9 c2 l& r6 s
what's going to happen in a hail storm, will it be very loud ??? * ?$ \: h( s/ S U+ w2 |Summer raining seas ...
6 z4 B+ P- w9 ~
that is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.