Advantages + E. I" `- v) @" ?; _* F$ [, OVery durable in cold weather ' L+ x4 e8 r3 n5 B0 oHigh percentage of recycled material and are 100% recyclable : x( W! t$ d# _5 d0 s6 `0 t+ \Disadvantages+ }3 o7 D' J+ u- c2 _
Rusting (require maintenance to prevent corrosion) $ ? {$ ^, ]4 k: K0 [Copper and lead roofs can be targeted by metal thieves 0 S. C, O; n& v) p( wHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure ; Y* K8 G$ w" R9 E/ cCellular and radio reception may be negatively impacted
Metal roof ??" J! W. O* G! ~$ \0 }/ R; z- S' q7 F
what's going to happen in a hail storm, will it be very loud ???% I9 M4 L, I3 @* X
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 ! B2 A; P9 S2 R% [7 |: [Metal roof ??# a" J0 O) [9 U. l# D+ d
what's going to happen in a hail storm, will it be very loud ???! ]+ N% x- c; {/ F: m
Summer raining seas ...
icing 发表于 2014-6-7 22:36 ( U% Z' l% T# ?- YMetal roof ?? 5 U( C! T8 g. O& ]: Z- p5 \what's going to happen in a hail storm, will it be very loud ???6 q4 m) J0 {' K
Summer raining seas ...
# H0 R; G! b% {6 g1 x2 L
that is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.