Advantages ' k' G+ F( I8 R! Y* V5 mVery durable in cold weather 2 h! ^4 _- m. AHigh percentage of recycled material and are 100% recyclable 5 Z9 Y3 P- M/ X3 J! `Disadvantages7 L5 F% ?& S" c
Rusting (require maintenance to prevent corrosion)$ {/ j# N, n% @& D
Copper and lead roofs can be targeted by metal thieves , e7 j5 m- a3 m8 q+ Q( u$ [High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure - w0 {$ x) D+ |# ^; \; M9 QCellular and radio reception may be negatively impacted
Metal roof ?? ; L( p+ r+ _" F1 g" N7 Lwhat's going to happen in a hail storm, will it be very loud ??? + {" G" S: Q9 q5 c1 ^/ xSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 0 d$ k0 q4 x" s. N7 y8 `! r) @( d
Metal roof ?? * V" G/ t- d, ]" Lwhat's going to happen in a hail storm, will it be very loud ???/ T4 w! B! v5 j0 I
Summer raining seas ...