Advantages% ?/ q* t/ D( q8 r/ O5 }) F
Very durable in cold weather, Q# i; q' u2 H, i# J3 P$ z1 q
High percentage of recycled material and are 100% recyclable $ j' j. O0 u* cDisadvantages 0 ?5 |9 F0 O* h9 g: V: ~Rusting (require maintenance to prevent corrosion) ( e/ P7 J; Y( l1 BCopper and lead roofs can be targeted by metal thieves. q1 t' B. L2 z2 A
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure J0 O* p; V, U9 S7 R. n1 {. s0 i. a; |Cellular and radio reception may be negatively impacted
Metal roof ??# {' T' N: Z' _/ Y; D4 S# D h
what's going to happen in a hail storm, will it be very loud ???5 s% c' l: {1 @: m2 k
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 ) d3 f- D) [2 m+ |
Metal roof ?? 6 t; E7 a$ l1 a) Iwhat's going to happen in a hail storm, will it be very loud ???5 Y4 ^* j# [- p# h
Summer raining seas ...