Advantages! ?4 S4 d6 _$ S' ?1 G
Very durable in cold weather : R, `, N' w1 U A9 R! \! `' q* pHigh percentage of recycled material and are 100% recyclable5 ~' M; z9 Z/ h* E
Disadvantages5 a' }+ a! }. W1 X
Rusting (require maintenance to prevent corrosion) l7 o! [ W8 S5 h! v
Copper and lead roofs can be targeted by metal thieves/ Z* ^; x9 g, ^+ L, i4 `
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure1 F1 g, J. o/ o* E; {
Cellular and radio reception may be negatively impacted
Metal roof ?? m& l& J/ [1 i4 T+ |( m0 V% N
what's going to happen in a hail storm, will it be very loud ??? % l+ c4 K! O: \6 K4 GSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 ' K; ]+ r! \9 j, }: z% Q* ^
Metal roof ?? & z1 [9 Z+ ^3 |6 ]what's going to happen in a hail storm, will it be very loud ???2 F* I; f. [; R, Y- n3 h+ m
Summer raining seas ...
icing 发表于 2014-6-7 22:36 : ?7 ^5 X9 Z2 D. {! W# J7 U: d
Metal roof ??. R; y9 W; l' l8 q8 O: J( U8 K& q3 U
what's going to happen in a hail storm, will it be very loud ??? 9 M+ A$ S) r8 Z' ?: R6 dSummer raining seas ...
" ?( n2 O- N7 T, g2 q7 Lthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.