Advantages5 g& U. [% j- C! R6 u% T" p% Z% Y
Very durable in cold weather# f- z+ }6 j. A+ U( Q1 }
High percentage of recycled material and are 100% recyclable, [4 m! X% f \! }8 g/ O: i% c
Disadvantages & z5 B" }) `3 b' _* T) K2 aRusting (require maintenance to prevent corrosion) 7 ]" d" j: W* _6 d/ r: D( ~0 XCopper and lead roofs can be targeted by metal thieves! B" k( U' P5 s9 f0 t; W( b
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure # k- x ~' p# |Cellular and radio reception may be negatively impacted
Metal roof ?? 5 b: P7 `& P3 j8 R# }# H J7 Ewhat's going to happen in a hail storm, will it be very loud ???- \+ W+ y f8 J3 L
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 ) v, o Q% r) m: v/ P! M
Metal roof ??( P, X9 a" q6 ?8 }6 y
what's going to happen in a hail storm, will it be very loud ??? 8 I) q8 {7 p6 y; h6 e" V% gSummer raining seas ...