Advantages & j0 z2 V6 N: yVery durable in cold weather - Q2 T5 S6 G+ s6 u T- s+ @9 } AHigh percentage of recycled material and are 100% recyclable: Z8 [8 x) Z: g
Disadvantages 9 D' G' c! o( p4 Q8 Q. hRusting (require maintenance to prevent corrosion) % l) R% u7 X6 }0 FCopper and lead roofs can be targeted by metal thieves( l$ ]' u' ~$ H# X z* d4 R; S$ R
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure6 I8 \# B9 c- x- g
Cellular and radio reception may be negatively impacted
Metal roof ??+ S! q5 [2 m( u/ S5 [
what's going to happen in a hail storm, will it be very loud ??? , t" |' Z. B& w1 R6 g& P/ zSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 6 M) w1 K1 F+ _2 b' v# Q' EMetal roof ??7 R5 G2 G) V% Z o- B
what's going to happen in a hail storm, will it be very loud ???7 H, V ~0 w+ |% {, F7 t. _
Summer raining seas ...