Advantages / B9 W+ k4 o( R+ rVery durable in cold weather, V* f5 m& z- I' m" x, g' j6 y" L
High percentage of recycled material and are 100% recyclable6 a5 N; c% Z9 Q j: x) `2 D
Disadvantages . q3 R" K& t/ ]) u7 tRusting (require maintenance to prevent corrosion) ! p9 f/ ~4 n! ?. ZCopper and lead roofs can be targeted by metal thieves6 ~( B6 Z4 [. o* c2 L* `9 l
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure 3 C. O. U% k5 t# G4 Z8 w9 o, S& _Cellular and radio reception may be negatively impacted
Metal roof ?? # B( V3 H/ ^1 s2 |( i+ `what's going to happen in a hail storm, will it be very loud ??? 6 L$ a$ o) e' ZSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 ' z9 v. [1 ~7 M
Metal roof ??2 R3 ~% T: s G9 P' {4 N
what's going to happen in a hail storm, will it be very loud ??? $ b2 v/ v0 `: B2 \) GSummer 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.