Advantages+ M, n$ s- M3 j* j( v" E+ F9 Z
Very durable in cold weather : [% m- i" p0 E/ u3 FHigh percentage of recycled material and are 100% recyclable : R# J' M9 Z( Z) F- U/ x; |/ bDisadvantages+ ~; q; E' I! p; e ~; R
Rusting (require maintenance to prevent corrosion) ( `( |3 y- H7 B# lCopper and lead roofs can be targeted by metal thieves 2 `" o; K4 L) K' S: DHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure0 U, H5 M# k# L& r% [6 i! d, {
Cellular and radio reception may be negatively impacted
Metal roof ?? / r7 n7 k* z5 nwhat's going to happen in a hail storm, will it be very loud ???2 P4 i7 H1 \5 c$ S+ b
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 5 S# h0 M K& d4 I6 s3 I3 O' c6 _
Metal roof ??. r' D" y& \7 f% l) P+ E8 ?: t
what's going to happen in a hail storm, will it be very loud ???! }9 I$ t8 ^) t/ b5 e5 m) K) t
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.