Advantages 7 Z% F$ s) ~3 y D8 i9 }Very durable in cold weather2 D+ U0 b7 l. n1 \, O* N
High percentage of recycled material and are 100% recyclable ! L6 w9 }- o. p( QDisadvantages ( m, w, _5 n' X$ VRusting (require maintenance to prevent corrosion)# h$ [9 N. M/ I0 E6 P# }# u
Copper and lead roofs can be targeted by metal thieves; ^ F% B& r2 f' j- }
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure 9 a0 z) J: t5 e6 t# F2 cCellular and radio reception may be negatively impacted
Metal roof ?? 7 t a- H; S: g8 ^9 P* O. |what's going to happen in a hail storm, will it be very loud ??? 4 a+ X: E) w3 Z \/ b, ^# HSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 2 V; J6 F6 [" z# v" O; f
Metal roof ??" @0 r% ]( X6 M+ ~: o( V
what's going to happen in a hail storm, will it be very loud ??? " {% i& c7 N4 U: `. XSummer raining seas ...