Advantages + e5 [6 W3 Y1 u7 A* SVery durable in cold weather9 L6 l/ u, l- ?0 z% M
High percentage of recycled material and are 100% recyclable ( G. \/ q% `. IDisadvantages' ~& {, E; `9 r" U+ B! V
Rusting (require maintenance to prevent corrosion). Z6 ~1 J5 M+ J2 B0 d
Copper and lead roofs can be targeted by metal thieves 1 J4 }! j) ?: m& a4 JHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure: F. D) d3 `1 U/ c! P* B4 k9 w
Cellular and radio reception may be negatively impacted
Metal roof ??# U3 W3 d+ e- \6 g, m+ }/ O# o, t6 n
what's going to happen in a hail storm, will it be very loud ???" {# X7 |9 S, M7 l P$ P- L
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 * h3 K6 \0 H6 X7 s. n- DMetal roof ?? / X$ y8 x* q3 \what's going to happen in a hail storm, will it be very loud ??? l2 t$ p5 L! }$ c
Summer raining seas ...
5 f' m g" d, Wthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.