Advantages 9 `' N% i; i6 k% n( U4 TVery durable in cold weather % s! K/ M$ k! qHigh percentage of recycled material and are 100% recyclable6 r1 L5 @( D6 v/ T- O6 T% G! S4 m
Disadvantages d/ ?( r1 h0 N; ~% @( S! y3 iRusting (require maintenance to prevent corrosion); t2 y& f$ ?! l; S
Copper and lead roofs can be targeted by metal thieves % g9 t) w& F; a! [ jHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure $ J) v' l. S* L& z! C% QCellular and radio reception may be negatively impacted
Metal roof ??* K7 j* a# {- C: r; E2 }% C2 K0 c
what's going to happen in a hail storm, will it be very loud ???8 ~) ?$ a/ L2 v3 \! K. w! h
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 : n, ?' M/ k9 k% I: f- v
Metal roof ??) u& v! L+ D. v# [- U2 P
what's going to happen in a hail storm, will it be very loud ??? 0 e+ X+ F0 p# d* PSummer raining seas ...
icing 发表于 2014-6-7 22:36 # e0 |! ~9 s# l. n' e) g
Metal roof ??% v( n6 I. E3 E1 b, B* P3 A; H
what's going to happen in a hail storm, will it be very loud ???8 U- b# h6 P3 E4 }7 [
Summer raining seas ...
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that is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.