Advantages7 D7 a6 u' Z2 f. v
Very durable in cold weather F+ j9 B3 _* ^- Z: V
High percentage of recycled material and are 100% recyclable # u& n- y4 g" m8 h- ]: N- wDisadvantages ~3 R: T, t" P
Rusting (require maintenance to prevent corrosion) 1 D- h7 Z0 L/ l( p, }Copper and lead roofs can be targeted by metal thieves ' z8 j' F9 s" A. `High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure* k0 I, X4 X0 R1 e
Cellular and radio reception may be negatively impacted
Metal roof ??% K' t+ {2 f! X
what's going to happen in a hail storm, will it be very loud ??? ' o3 @4 z, O5 s/ \" @. ~Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 ) n" P: V$ x4 X# G( P+ l
Metal roof ??0 \8 F: S( A: N7 h
what's going to happen in a hail storm, will it be very loud ??? 2 C0 n: X% s4 USummer raining seas ...
icing 发表于 2014-6-7 22:36 - o2 y7 J5 X7 l3 n* ^' [2 D( b# a
Metal roof ?? ' O) R; U# ]- _ v4 f( Uwhat's going to happen in a hail storm, will it be very loud ??? " C7 B% u+ E4 pSummer raining seas ...
/ S% b& x m! C1 ~" Tthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.