Advantages ; f5 I( h7 J8 B |- CVery durable in cold weather 3 u: B5 E5 g" IHigh percentage of recycled material and are 100% recyclable 3 l$ [: ]+ \; u7 V( GDisadvantages 6 L5 g' j: V. t' m" i8 ?; zRusting (require maintenance to prevent corrosion) 2 Y" E! m* J, {% ACopper and lead roofs can be targeted by metal thieves7 M6 `/ [ o7 J; @; M
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure* @9 z! {& P: v0 S! a+ y
Cellular and radio reception may be negatively impacted
Metal roof ?? - l% I( I, Q$ g% q1 }- q6 iwhat's going to happen in a hail storm, will it be very loud ??? 1 L. ^: s6 O- z- l% dSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 6 m [' h* s5 Y; n, w1 |# K) a
Metal roof ?? : p( q, J W) \( Iwhat's going to happen in a hail storm, will it be very loud ??? : K3 {4 R8 S% O2 D. W; hSummer raining seas ...