Advantages" X0 k, |% _9 ]" U) v- F
Very durable in cold weather % W9 S3 }) x" K8 z2 T8 dHigh percentage of recycled material and are 100% recyclable1 Z# j* V& u2 X/ ~6 ]8 e8 h: q
Disadvantages! p$ G, u& S2 m$ g; d4 I
Rusting (require maintenance to prevent corrosion)! G2 j, S1 O& j' K: `
Copper and lead roofs can be targeted by metal thieves6 Y* L% @! z) v" d+ w+ s
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure 9 ]! N R8 L6 d: b2 N, nCellular and radio reception may be negatively impacted
Metal roof ??6 l8 Z% [& k$ N* C/ l1 v3 ~
what's going to happen in a hail storm, will it be very loud ???( h4 n7 Q) p2 }+ ~: |. x
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 , k; R3 g" ^0 b [9 _! d
Metal roof ?? & P0 O) x( n/ r: ~$ O( B& Jwhat's going to happen in a hail storm, will it be very loud ??? $ T) k5 a A9 G3 ESummer raining seas ...