Advantages ! {1 _" ] s) b' e; d' kVery durable in cold weather, V0 E2 q" H/ `. U, g7 H
High percentage of recycled material and are 100% recyclable* y! t+ k& p5 a
Disadvantages7 \7 E/ I$ s `% M( x4 ^+ j
Rusting (require maintenance to prevent corrosion) $ f; G7 v& g- z3 Q ACopper and lead roofs can be targeted by metal thieves. a( \5 S6 U. F9 _: g
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure! Q6 r9 U" E. k1 ]# R; o$ k$ X i
Cellular and radio reception may be negatively impacted
Metal roof ??; `; S( E0 X( J' _6 q& U
what's going to happen in a hail storm, will it be very loud ??? ; a0 I, K7 f4 [" `7 } \+ V( oSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 & |9 d' S, N! @4 r+ j& w" y
Metal roof ?? 5 Q" L8 d/ l0 G6 iwhat's going to happen in a hail storm, will it be very loud ??? , f$ j2 t. t, x# Y5 F) S& ySummer raining seas ...
$ Z$ g: b3 i5 k- m& L* ]& j; ethat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.