Advantages 1 H3 A5 g3 w/ q# xVery durable in cold weather : ~- G6 |4 S9 s. J7 l3 gHigh percentage of recycled material and are 100% recyclable ; j7 b6 F* k# y3 E' V PDisadvantages U/ [4 h+ }. ~( }$ ^+ I3 `Rusting (require maintenance to prevent corrosion) 3 Q) D7 m2 _6 B+ H/ I! [Copper and lead roofs can be targeted by metal thieves- o% y1 e/ z- v2 s& _. t
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure l8 F% g( A; A6 e: f) y7 ?
Cellular and radio reception may be negatively impacted
Metal roof ?? R1 { ~; |% r) V9 @9 w
what's going to happen in a hail storm, will it be very loud ??? % h* Z) I- I7 ?$ R: KSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 & q) \3 V: r) |5 f" b" n
Metal roof ?? ; b+ _3 N( r3 }& Zwhat's going to happen in a hail storm, will it be very loud ??? 6 E# \4 h* B( P aSummer raining seas ...
icing 发表于 2014-6-7 22:36 ( m" \8 j% t4 v! d! [
Metal roof ??7 k# b# N: Q& x
what's going to happen in a hail storm, will it be very loud ??? 4 D$ s) {' T: |! J9 T8 P8 ESummer raining seas ...
7 q9 c: E1 y% {# [' }+ ]- gthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.