Advantages " j7 M* Q( s0 P" K' }! Y, c7 DVery durable in cold weather 8 P$ [1 E' D, }$ s" K4 U. u* ^High percentage of recycled material and are 100% recyclable0 H5 T# D% K, [+ C+ F
Disadvantages5 P( N+ p3 Y- k0 d4 u
Rusting (require maintenance to prevent corrosion)* R% s/ z: {0 p
Copper and lead roofs can be targeted by metal thieves ; M( F( W4 G2 d Q [High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure* d! m+ v0 o3 o2 v5 P6 K
Cellular and radio reception may be negatively impacted
Metal roof ??& G7 z. ]: U& S, ^* I4 s( v% ]1 F
what's going to happen in a hail storm, will it be very loud ???6 x5 I0 x- o. M( R! k* m
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 7 F+ f' ]+ H+ b: T1 Q4 kMetal roof ??! f3 `6 A& |9 k0 S
what's going to happen in a hail storm, will it be very loud ??? * t9 C7 X! t9 m, j8 Z4 }- K' @/ tSummer raining seas ...
icing 发表于 2014-6-7 22:36 . J/ \& h9 w" r
Metal roof ??5 h# R0 u1 f! _
what's going to happen in a hail storm, will it be very loud ???0 ^8 [# R$ o. T& T2 b
Summer raining seas ...
4 D( i/ h' P% u% bthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.