Advantages $ ~, y8 Z. K% E5 c. {+ s5 Z) cVery durable in cold weather! j5 Q [! v. a! e
High percentage of recycled material and are 100% recyclable0 ^7 {% b" s/ e3 i, k
Disadvantages + e! B, {# t& b5 D( r" x" ?Rusting (require maintenance to prevent corrosion) - Y( I* W" c' i' H X: h+ L, ]Copper and lead roofs can be targeted by metal thieves- M3 V D4 Y) @' @9 f( d
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure `) O" D$ o. a: p
Cellular and radio reception may be negatively impacted
Metal roof ?? * r9 n5 {7 `2 g, `what's going to happen in a hail storm, will it be very loud ???; m& @4 |6 C, t+ @9 |1 g0 e
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 . o0 x, T' A/ M1 q _3 MMetal roof ??# `. S9 s- c! A1 R
what's going to happen in a hail storm, will it be very loud ???* t" n5 }" T1 A* Z* g! T
Summer raining seas ...