Advantages ' d+ H L8 A/ R( |% ^2 qVery durable in cold weather$ P3 ?& O4 V5 `/ i7 _; B
High percentage of recycled material and are 100% recyclable/ `0 s6 }( b8 }2 X, y) k5 \2 K2 M
Disadvantages 5 C' Z5 q/ H% n0 NRusting (require maintenance to prevent corrosion)* h2 j: B& h) n9 G
Copper and lead roofs can be targeted by metal thieves. \& R3 b6 N# N- |' e, o8 L
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure 7 B, L. F9 g1 p! r4 d2 n- nCellular and radio reception may be negatively impacted
Metal roof ?? j) ^5 W7 d) \* a. W
what's going to happen in a hail storm, will it be very loud ??? % t9 `( M( ~5 t( I- Q6 |1 kSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 : I, Y# ~' S3 Q- W
Metal roof ??' ^! d8 j2 W, }1 \# u
what's going to happen in a hail storm, will it be very loud ??? ~/ {. x8 B$ V
Summer raining seas ...