Advantages9 p3 ]) d' T' B# z; Y
Very durable in cold weather" u% y( R0 o% Y% q3 K/ r6 x% Q
High percentage of recycled material and are 100% recyclable 6 i( o, t3 L0 f) x* t3 ZDisadvantages + @- f! P# P; C4 i0 |Rusting (require maintenance to prevent corrosion)! Z3 P- n5 j, g3 ^2 u: j
Copper and lead roofs can be targeted by metal thieves6 L! Q6 a1 `5 y* t5 q
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure% O+ _: P/ `' p6 n6 V* O3 g; A
Cellular and radio reception may be negatively impacted
Metal roof ??" _9 |1 m8 h( ]: x+ T, j5 N
what's going to happen in a hail storm, will it be very loud ???8 i* k" T: N# m: ~& T% O4 W) S
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 6 R/ p* T- h PMetal roof ?? 0 _! I7 F9 j( Ewhat's going to happen in a hail storm, will it be very loud ??? 0 S" z+ X/ b5 d2 w1 bSummer raining seas ...