本帖最后由 K歌 于 2014-6-7 12:15 编辑 % b3 s K$ P! V1 u% Z9 u % {. T P7 y9 S+ J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。9 d l' T8 t. o" {5 G
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Advantages 3 u, ]7 M/ \4 B4 P; e1 GVery durable in cold weather& _7 T3 y4 K, n+ Z, K
High percentage of recycled material and are 100% recyclable $ ~0 H! \5 U9 s7 BDisadvantages ) S) }1 P7 R) Z; WRusting (require maintenance to prevent corrosion)! W, Y8 d0 c( Y, ?7 m+ }. v
Copper and lead roofs can be targeted by metal thieves 5 q6 j2 r& v0 j& h% rHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure: N/ H; y8 e: L8 n. N
Cellular and radio reception may be negatively impacted
Metal roof ?? : l* [, e7 z& o J+ q; O# _6 Jwhat's going to happen in a hail storm, will it be very loud ???, }: L, ^2 Z4 T5 `- [
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 6 S4 ^' o3 I# s# s9 cMetal roof ??+ t3 a) l! n! k0 v9 [" n& _' M6 \
what's going to happen in a hail storm, will it be very loud ??? + J2 I! N: P* W6 M; W* D+ I0 j5 \ GSummer raining seas ...
icing 发表于 2014-6-7 22:36 , ?$ B1 O$ Q5 q
Metal roof ??/ x# P, u9 g2 x$ A; ]% b* T
what's going to happen in a hail storm, will it be very loud ???. ^. D7 o+ X( F
Summer raining seas ...
3 q, `" I6 |; |5 e6 o8 Xthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.
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发表于 2014-6-6 12:16
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