Advantages/ J9 S/ ^1 ^9 o! R- K+ I: e
Very durable in cold weather. s/ `* d% q9 U- J, |7 _
High percentage of recycled material and are 100% recyclable) ?9 V# E' M; z7 k( Q
Disadvantages " W6 c T+ |5 c+ _+ u. n+ DRusting (require maintenance to prevent corrosion) 1 b+ C# C2 @! @. U5 [* }8 nCopper and lead roofs can be targeted by metal thieves; J* S' p' y9 _( R3 A5 ]$ u9 ~- a
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure ! H/ d% [3 A. H; l2 {Cellular and radio reception may be negatively impacted
Metal roof ??* q" H9 j7 D& D1 }: J, ^
what's going to happen in a hail storm, will it be very loud ???0 ^- s( k: v) |+ \" d4 U1 a4 w
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 + N3 _+ A! i' Z( r6 S
Metal roof ?? % n- z8 Z0 m1 c' _" R* {( B' Hwhat's going to happen in a hail storm, will it be very loud ???' V# O+ S* Y, s" F
Summer raining seas ...
icing 发表于 2014-6-7 22:36 - ~+ a& c- j8 ~" P% O
Metal roof ?? ; S3 O, u) B* X0 u0 J" O( ~what's going to happen in a hail storm, will it be very loud ???0 u7 @( f+ V7 j0 _
Summer raining seas ...
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that is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.