Advantages - N0 F. O1 C5 D7 z* b3 ~6 ^Very durable in cold weather _8 D' m4 I6 NHigh percentage of recycled material and are 100% recyclable ' M8 a. j0 T) u# m1 `/ q& pDisadvantages9 i( L% z" E2 A: d* e0 P( U
Rusting (require maintenance to prevent corrosion) 6 j! w- [+ T7 G5 a9 _. SCopper and lead roofs can be targeted by metal thieves; t+ j# A) i8 o: O
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure/ ~$ z. z$ w) h9 r
Cellular and radio reception may be negatively impacted
Metal roof ?? * v# j/ W" ~+ s' i6 \; m; Ywhat's going to happen in a hail storm, will it be very loud ??? 0 n: u0 z9 v: |' d3 nSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 9 I6 F1 U9 A7 d, k8 a" @9 F
Metal roof ?? 9 S! l8 n/ e- W" G2 R0 h8 L9 fwhat's going to happen in a hail storm, will it be very loud ??? 5 w/ b* n! |6 P4 q$ h8 q0 ISummer raining seas ...
icing 发表于 2014-6-7 22:36 3 _" ?) f2 N% S4 aMetal roof ?? . `( f' f& f( N7 b5 f) @what's going to happen in a hail storm, will it be very loud ???2 B5 w8 ]* P- b0 U6 p( O
Summer raining seas ...
# _ B0 W: ?9 k( U8 K2 n0 Ythat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.