Advantages9 T v9 a/ {' E
Very durable in cold weather p6 F/ n2 [4 RHigh percentage of recycled material and are 100% recyclable - [4 T2 [$ `( v, S+ |Disadvantages* R; d9 y' W* q6 s! P# l) X6 |6 }0 w
Rusting (require maintenance to prevent corrosion)' w# W5 y2 G$ _% z+ y* A( E6 `
Copper and lead roofs can be targeted by metal thieves; b$ g4 d- J# l; K% ^
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure9 q9 q! @7 j0 f* p* i
Cellular and radio reception may be negatively impacted
Metal roof ??0 p' G- }; J3 m, ^( {. g
what's going to happen in a hail storm, will it be very loud ??? ' C; I% }8 c" s& j& Q* \! [* i, BSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 1 J( V$ R; W$ N8 ~! ]( @! u0 Q, ^
Metal roof ?? d/ I1 P8 s* F o d: r( V9 m
what's going to happen in a hail storm, will it be very loud ???, C/ i. s' B3 }4 `
Summer raining seas ...
$ N/ @7 P7 o! z" b3 |) m3 [that is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.