Advantages" y& c$ c0 ?! X2 K, j$ F8 p
Very durable in cold weather # W; f/ Q+ I/ {/ n) fHigh percentage of recycled material and are 100% recyclable g6 ~5 w3 H; }0 k5 D, \Disadvantages M5 r, X9 k/ e: l! c! \" q1 r
Rusting (require maintenance to prevent corrosion), K) {7 u4 Z% D) d/ _- }( j* A
Copper and lead roofs can be targeted by metal thieves / X; e9 b2 f3 E' D2 Z2 JHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure; b; X: u& X7 T) Y
Cellular and radio reception may be negatively impacted
Metal roof ??& p- q7 ?+ Z3 u# I5 q
what's going to happen in a hail storm, will it be very loud ??? & c" E3 s) B$ X# Z! ]! v* vSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 2 h" x4 P' `* g( B' H5 J
Metal roof ?? ' u% T8 X. w( I! B, ]what's going to happen in a hail storm, will it be very loud ???- c4 W0 l7 q; O2 L' G
Summer raining seas ...
icing 发表于 2014-6-7 22:36 * `! D0 N( i/ bMetal roof ?? ; _; ]% ]( L4 E0 T7 ]8 Pwhat's going to happen in a hail storm, will it be very loud ???5 ~4 Z; g/ D+ X Q
Summer raining seas ...
' k8 m' T# @. I6 Sthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.