本帖最后由 K歌 于 2014-6-7 12:15 编辑 5 i/ Y% T5 x h. S- p+ A. {9 D$ { t* a% N
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。- S5 O' r: B6 Y
Advantages0 ?7 N' \/ g% X( L" e# R
Very durable in cold weather! r, e* Y2 K) N, w; `/ l. x
High percentage of recycled material and are 100% recyclable 7 v% I6 c- P2 t+ \Disadvantages- ]% u8 f, \3 ]7 D; `2 |+ Z
Rusting (require maintenance to prevent corrosion)2 a5 h5 P$ A1 c5 I
Copper and lead roofs can be targeted by metal thieves* P3 q4 K" a$ d! e
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure }! _- `9 l* H8 Y% `. w t8 hCellular and radio reception may be negatively impacted
Metal roof ?? & d) n9 O3 I0 a% _( \% Awhat's going to happen in a hail storm, will it be very loud ??? & _; W! Z/ Z3 P, v! g; QSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 6 l+ d: Z/ z/ y: N; @
Metal roof ??1 O$ ]! h- g+ Z- k+ r7 s
what's going to happen in a hail storm, will it be very loud ??? 4 b; m0 W! k4 ~; mSummer raining seas ...
icing 发表于 2014-6-7 22:36 : ]% J% `% C& eMetal roof ??5 \* j: i$ L( N5 I1 U# c
what's going to happen in a hail storm, will it be very loud ???0 F& x* k/ e- C
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.