Advantages 5 u4 C* j1 v" ~" E& u" a6 UVery durable in cold weather, Y; s0 o Q8 X) e) Z
High percentage of recycled material and are 100% recyclable' g; o- m% ?% i1 R9 a
Disadvantages5 E$ a9 x1 ^- B
Rusting (require maintenance to prevent corrosion)7 I* m4 p5 g$ V5 ?6 O6 B
Copper and lead roofs can be targeted by metal thieves$ P6 B4 L. n( g7 B* E! g M: U% _; M
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure * S0 G( g! s. G* _Cellular and radio reception may be negatively impacted
Metal roof ?? : \$ e/ n5 ?- V) I8 \' Swhat's going to happen in a hail storm, will it be very loud ??? 7 C8 d# b3 T- C5 [1 C. \Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 # R/ i6 e3 G7 H6 R- {# z+ M1 gMetal roof ?? 0 a1 e3 M, f! V. V. Bwhat's going to happen in a hail storm, will it be very loud ??? 0 w6 p- z9 X4 A6 H+ c) O; w( HSummer raining seas ...