Advantages - n) g _" g) z+ R9 EVery durable in cold weather . x5 S% m) z6 n3 u! F7 L" U+ B- NHigh percentage of recycled material and are 100% recyclable8 [8 i/ b$ l# U9 }3 S+ e
Disadvantages ) _/ ^+ ^+ Q4 P Q, x" c& \Rusting (require maintenance to prevent corrosion)0 L# |/ f% o9 B0 d& ^/ }
Copper and lead roofs can be targeted by metal thieves 3 R& w3 L t5 x* U7 r8 z7 }High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure& j2 e# }# @+ \6 z: x. R' i
Cellular and radio reception may be negatively impacted
Metal roof ??( P6 x/ a; I0 t( J! {
what's going to happen in a hail storm, will it be very loud ??? % Z) M* \1 ^( h8 m3 B, LSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 - r. P4 G G0 J4 G! u
Metal roof ?? % g3 S) H- e. I# Rwhat's going to happen in a hail storm, will it be very loud ??? + ?7 N) Z# s0 M9 ~1 }' `Summer raining seas ...
icing 发表于 2014-6-7 22:36 1 D" N" G/ B' Q7 | qMetal roof ?? 9 l/ n& h- L0 P8 \what's going to happen in a hail storm, will it be very loud ???2 u# z0 N: w+ a. l8 ?
Summer raining seas ...
# Q, \5 g- m8 ]3 Z; `& {that is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.