Advantages" y+ z" O. m) S6 J$ ]: D
Very durable in cold weather/ `4 i7 S6 ~* ?2 T# c R
High percentage of recycled material and are 100% recyclable0 G& s; E' @+ w2 p2 J/ H
Disadvantages0 O+ N# F4 Q% `8 t D
Rusting (require maintenance to prevent corrosion) % r" P8 x! r( `% U0 w- L" [Copper and lead roofs can be targeted by metal thieves! a K! x+ n9 F! t, y1 r
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure' L% G9 ^! m4 b+ h
Cellular and radio reception may be negatively impacted
Metal roof ?? 3 e" m }7 `# y# ?* x; D: U1 Hwhat's going to happen in a hail storm, will it be very loud ???* M' C ?* h7 P
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 % [ i$ Y# R3 O5 O. Z& R YMetal roof ??, o5 T2 E( n; u8 {
what's going to happen in a hail storm, will it be very loud ??? & |$ V" f: g- ^- ?- E* jSummer raining seas ...