Advantages; ^6 k2 L* T p* p
Very durable in cold weather ( |- |9 @# H( o1 e1 j/ JHigh percentage of recycled material and are 100% recyclable/ J9 [ X& d9 w8 `+ x9 i
Disadvantages7 f6 I0 [/ J. q ]9 H' R6 m
Rusting (require maintenance to prevent corrosion)9 }; u0 o, o+ K. Q9 J% @
Copper and lead roofs can be targeted by metal thieves6 M+ Y: T( p' y, x7 O& x
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure 3 Q O+ x; }* y0 ^, }- |Cellular and radio reception may be negatively impacted
Metal roof ??2 S7 H* Y' B3 b5 e, w
what's going to happen in a hail storm, will it be very loud ??? U! V" @7 J$ T% i5 R, aSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 7 k$ t: l* w( q* q( ?Metal roof ??- {1 v, {# b# U. F# y6 v# S
what's going to happen in a hail storm, will it be very loud ??? ) s: n4 R0 T- i% v+ Y$ @: ~Summer raining seas ...
$ _9 J5 {1 L' A' H, |' S. nthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.