Advantages * x2 R) h! r1 y" l* l+ I0 ]% AVery durable in cold weather 4 w: a! s S9 w6 h! \High percentage of recycled material and are 100% recyclable3 j; i9 d. e% Q- a- p+ S
Disadvantages 3 o+ @! O. O" L% N1 ~Rusting (require maintenance to prevent corrosion) + S7 R. {- }* o" k& R! P. }7 E: TCopper and lead roofs can be targeted by metal thieves- h# O9 K9 z# E$ \" f4 t5 d
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure 6 g+ K. ^7 b- x( ~Cellular and radio reception may be negatively impacted
Metal roof ?? ) o9 j( _1 s6 e( h8 @' T7 ?what's going to happen in a hail storm, will it be very loud ??? 6 w9 U% Q9 K2 ]3 @( DSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 8 A; a1 o% h, Q# P5 T V R
Metal roof ?? 0 a1 Y) a- ^9 q1 c$ cwhat's going to happen in a hail storm, will it be very loud ??? W1 k3 a( r/ }! R
Summer raining seas ...
icing 发表于 2014-6-7 22:36 6 n4 r: P; ^5 U- C" X& b
Metal roof ??4 }& x2 `% E( z7 p- j$ V' A6 B( m
what's going to happen in a hail storm, will it be very loud ???1 F$ P. M7 _1 Q% g6 u% b
Summer raining seas ...
9 E0 F8 z+ i4 Y1 ~1 X: s
that is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.