Advantages % O6 e& M3 R8 _1 ^3 Z! \Very durable in cold weather 1 ?0 m& c; }; m* SHigh percentage of recycled material and are 100% recyclable- D* {2 A* q2 e4 Z4 d! q; _
Disadvantages 3 v. K3 d0 B$ M2 l# v$ JRusting (require maintenance to prevent corrosion): A) i4 g! E$ I" {9 c( w1 ^
Copper and lead roofs can be targeted by metal thieves* V5 A" I" D3 L+ h
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure6 A* `6 y# @$ ] a8 x2 O7 z+ x
Cellular and radio reception may be negatively impacted
Metal roof ??! }" P& }! i! H) a1 z h
what's going to happen in a hail storm, will it be very loud ??? 5 `& I1 ?4 r: o& |. A' [% ZSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 0 s5 Q( K! {9 s1 D2 O
Metal roof ??7 V) X1 }; M6 j7 Q; j P* X6 g
what's going to happen in a hail storm, will it be very loud ???* S# V1 g0 ]9 v& Y) T# ?+ j6 D
Summer raining seas ...