本帖最后由 K歌 于 2014-6-7 12:15 编辑 1 |+ C' {8 S7 B7 X c) J4 \1 w. I6 s! l; H. U/ v
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。' D+ S7 F' p( b# Y
Advantages/ j, u4 ~; \8 E1 e
Very durable in cold weather 0 X7 i) c7 X P) E9 F7 mHigh percentage of recycled material and are 100% recyclable: x: l* V2 ~, v5 _. s3 d# y4 E- U/ i
Disadvantages0 j; f0 W% c: c }3 A
Rusting (require maintenance to prevent corrosion)- n0 Z0 o( K& h% f& L5 S$ `
Copper and lead roofs can be targeted by metal thieves : b0 l" U. n: W0 zHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure/ `, }5 G3 B# G4 f7 C
Cellular and radio reception may be negatively impacted
Metal roof ?? 5 i: V$ \! b6 W9 Cwhat's going to happen in a hail storm, will it be very loud ???% o( T. w1 I! A5 z8 i! W( J
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 , k0 P0 b( m' {0 b- {# aMetal roof ?? 7 l* Y6 A) y4 Nwhat's going to happen in a hail storm, will it be very loud ???( b% V% u C1 X) D& x5 |8 Q
Summer raining seas ...
icing 发表于 2014-6-7 22:36 / ]! ^, x1 {! s4 y/ g' c- N% w+ UMetal roof ??8 b' l |: \. m9 A' ~8 L' ]' s
what's going to happen in a hail storm, will it be very loud ??? % {, M3 s/ V; S+ s" N7 I# A* }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.