Advantages! ^- X: n( E% {
Very durable in cold weather , ^& _% h! ^- d. PHigh percentage of recycled material and are 100% recyclable- ]- x r. h" T; ?) m. O8 v
Disadvantages ' o) d9 q& @! n6 CRusting (require maintenance to prevent corrosion) 1 q" J- M' u) N+ HCopper and lead roofs can be targeted by metal thieves4 l6 R5 Y. c. W# _
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure . S# Z, m- F* q K: {Cellular and radio reception may be negatively impacted
Metal roof ??* N/ n$ p# L, m( b) a
what's going to happen in a hail storm, will it be very loud ??? , J1 c$ S- l$ I& q) O* a9 gSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 2 K" Q0 E: j# n) o
Metal roof ??. F* k3 X0 [/ i( [
what's going to happen in a hail storm, will it be very loud ???" U5 ?2 q& [5 Z, F
Summer raining seas ...
icing 发表于 2014-6-7 22:36 + ?- @; h1 W! _4 w
Metal roof ?? . E* o }) e* N: s( c' Nwhat's going to happen in a hail storm, will it be very loud ??? 9 C3 S8 C# m: hSummer raining seas ...
6 o6 b9 d5 n% j$ N# bthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.