Advantages) w1 g) s# d/ L' e+ Z% a. y. U4 G! i
Very durable in cold weather7 ~. w1 `0 i) ?6 V' v- E1 A
High percentage of recycled material and are 100% recyclable) U' i7 i: H* m: u2 D2 t
Disadvantages * S5 i4 N j/ R LRusting (require maintenance to prevent corrosion) 2 q5 p { [9 v0 H. @Copper and lead roofs can be targeted by metal thieves $ b7 Q% |7 t% ~ ^! qHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure6 |8 R* ~1 z, ~0 r
Cellular and radio reception may be negatively impacted
Metal roof ??8 x J! D9 [8 b# H: Z" f3 M4 m4 ]* k
what's going to happen in a hail storm, will it be very loud ??? : v# N* l6 c3 c8 d' gSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 & h% s: I) @2 w% Q0 yMetal roof ?? , G9 b u, ~! {1 E% H8 [9 _what's going to happen in a hail storm, will it be very loud ???4 e {/ W& C* U8 H0 F
Summer raining seas ...