Advantages6 d# V% Q# ~- I8 l1 w
Very durable in cold weather, ?: l% H7 B: y5 a) f% F5 Q. x" U
High percentage of recycled material and are 100% recyclable1 I! g; N- h. ]# D: z# Z
Disadvantages 9 c' t' g! O! }3 O" ~6 NRusting (require maintenance to prevent corrosion) / q- L; G0 w4 S7 v! O5 a7 PCopper and lead roofs can be targeted by metal thieves0 V8 w/ t W5 X; z" _4 R9 X. d5 {/ a
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure: |9 O m9 m- J
Cellular and radio reception may be negatively impacted
Metal roof ?? 0 v- L5 G6 S9 B; L! ~* qwhat's going to happen in a hail storm, will it be very loud ??? ! d: Y; A. i" x' r. x; R" b0 `Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 # I5 R( m$ s# c( x
Metal roof ?? 5 Q$ A7 a& g0 q$ ~: vwhat's going to happen in a hail storm, will it be very loud ??? 1 ]1 |3 |! S' g. G6 F& @! E& NSummer 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.