Advantages0 a) r% c$ _6 p* V
Very durable in cold weather # `' W \- Q9 C5 F: yHigh percentage of recycled material and are 100% recyclable6 \+ u( D. l$ G, ?9 F# _0 c
Disadvantages3 i5 t. p$ K) P2 @
Rusting (require maintenance to prevent corrosion)" g2 v0 X* R( v" `
Copper and lead roofs can be targeted by metal thieves2 Z; X+ O6 j A2 b3 @! s, E" k
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure 3 w4 O# T# N, \. y2 r9 aCellular and radio reception may be negatively impacted
Metal roof ??, t3 t. Y; p1 y: V% ~, N
what's going to happen in a hail storm, will it be very loud ???+ @* d5 \, z8 |' k5 I* l
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 % t# K* H- I7 y2 n. A. ~1 \! `: m- nMetal roof ?? ' a5 g* b' p# ?/ \what's going to happen in a hail storm, will it be very loud ???/ k- m4 d+ n1 o
Summer raining seas ...
* j% p$ A8 L0 bthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.