Advantages 8 k! j/ m% t5 C d& zVery durable in cold weather 9 q, }2 k6 J- O* S5 qHigh percentage of recycled material and are 100% recyclable; L* i$ K. {7 f1 o- G8 H- s
Disadvantages # d* r, Q. i A4 o; Y6 O9 KRusting (require maintenance to prevent corrosion)" o* m/ m. @# ^: Y3 ^# L
Copper and lead roofs can be targeted by metal thieves. H# n5 v- r! V$ _
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure4 k C, e- A# P' e
Cellular and radio reception may be negatively impacted
Metal roof ?? 3 r9 K) @8 h& J: _4 dwhat's going to happen in a hail storm, will it be very loud ???; N" }( H, {4 _2 i1 E
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 & d) B8 r( G2 f
Metal roof ??% }9 Y# _! M! O$ C( I' F5 C
what's going to happen in a hail storm, will it be very loud ??? 3 S. E& O4 y. i& l4 m8 R* m, ASummer raining seas ...
icing 发表于 2014-6-7 22:36 ) R7 u; ?: p/ ?" o1 H
Metal roof ?? : e4 B, d4 k. f, u. zwhat's going to happen in a hail storm, will it be very loud ??? ) R K' q5 A0 y: sSummer 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.