Advantages 1 J4 L4 z% L8 s/ p( HVery durable in cold weather4 D" H K* Q6 g
High percentage of recycled material and are 100% recyclable 2 J$ C$ u0 n4 @0 n3 r4 IDisadvantages : U$ G: B i/ ^* ^Rusting (require maintenance to prevent corrosion) * x/ [* a" F v: U, MCopper and lead roofs can be targeted by metal thieves 6 I- Y9 h+ Q4 q9 X n, O+ ]0 C- YHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure ' D6 O7 K& o% O! P( a/ ~6 ?' O$ sCellular and radio reception may be negatively impacted
Metal roof ?? 6 t7 k/ h. Y7 Z) nwhat's going to happen in a hail storm, will it be very loud ??? : }/ d4 v/ E% b( K2 ~1 wSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 ' |4 _; I/ k' X3 J8 g0 x3 t+ F$ K$ o, N# V
Metal roof ??: |0 k3 P3 W' z5 y
what's going to happen in a hail storm, will it be very loud ??? ' E- g9 {+ R' z$ L. X: a; H1 s/ [0 @Summer raining seas ...
icing 发表于 2014-6-7 22:36 3 d i* Y2 J G+ P6 j; l+ o2 jMetal roof ??8 r0 X: A+ l1 [: S7 W3 @
what's going to happen in a hail storm, will it be very loud ??? 6 L' n/ s2 O- p6 }$ e2 U5 S% oSummer raining seas ...
# _5 R& k! P9 G& c! u& a7 O7 lthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.