Advantages % J! F0 U- h0 ?0 ]Very durable in cold weather , K8 {. c- g4 ?5 dHigh percentage of recycled material and are 100% recyclable # d& m: _- _$ n: |Disadvantages) C: n( @/ K0 Y( t2 g; ]* t
Rusting (require maintenance to prevent corrosion) i) e9 y# ?% S" B
Copper and lead roofs can be targeted by metal thieves# [0 S( k. `& l2 G
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure2 A0 u! k, |+ x0 D2 S
Cellular and radio reception may be negatively impacted
Metal roof ?? 1 \# b" u! k3 r/ Swhat's going to happen in a hail storm, will it be very loud ???7 ]$ i6 Z7 u! K M( X2 }: i
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 $ d9 ~6 X, j( i I$ Q
Metal roof ?? ; O6 r3 P/ T# ]1 awhat's going to happen in a hail storm, will it be very loud ??? 6 ?+ F2 r. K9 }% o* bSummer raining seas ...
icing 发表于 2014-6-7 22:36 # {; M' t0 v- ~0 b3 o& a" ~ v
Metal roof ?? o3 ~& a @& E; pwhat's going to happen in a hail storm, will it be very loud ??? " k1 F# R0 X6 v+ `! Q4 g5 _Summer raining seas ...
0 Y" x/ ?- F }5 I! ethat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.