Advantages - t' \; ^9 ]7 p& N" \% KVery durable in cold weather8 T% R8 I7 f3 E' l2 x; J$ I; v
High percentage of recycled material and are 100% recyclable $ }) g. `* Z/ S* lDisadvantages & j& Q) m9 t$ n' Y* GRusting (require maintenance to prevent corrosion) / c! f2 Z& _& C: e+ e: n: n: o& LCopper and lead roofs can be targeted by metal thieves $ k( Z$ Z4 p: }9 ]; Q$ bHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure C+ V5 ]6 v& J4 S( H" a
Cellular and radio reception may be negatively impacted
Metal roof ?? 1 A6 ~& V: T- ?9 @+ Y6 C" zwhat's going to happen in a hail storm, will it be very loud ???9 ~0 V9 x2 A: @0 ^% U) l
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 6 j$ J, B% q) s0 Q
Metal roof ?? 9 g! P! D$ L# B, X3 e' ^what's going to happen in a hail storm, will it be very loud ??? 5 }% W9 R8 M' Q g+ f/ B* kSummer raining seas ...