Advantages 6 O9 F% e; p/ y' ?! cVery durable in cold weather3 [( F% v i8 _6 H4 j3 c4 A& o
High percentage of recycled material and are 100% recyclable6 a/ y- f" y" |( c( {# X' I
Disadvantages ) c0 W0 p4 w* l6 y( rRusting (require maintenance to prevent corrosion) + G8 d* C/ W! S! l+ s, j$ xCopper and lead roofs can be targeted by metal thieves+ W) H Y$ \+ D4 n. R
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure & B' ^8 g0 S" p7 XCellular and radio reception may be negatively impacted
Metal roof ??+ x2 P7 {1 T" u1 [8 S7 u* `, a
what's going to happen in a hail storm, will it be very loud ??? 1 R* m9 @" j+ F/ m" |4 {- mSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 . q/ P' O$ g4 g+ FMetal roof ??% l8 ?/ y3 ^( p
what's going to happen in a hail storm, will it be very loud ??? " T9 J1 j- z$ T5 aSummer raining seas ...