Advantages + s: u/ W& F) X _/ [; G& I2 ?# dVery durable in cold weather5 N; [& L0 s& [% R% Y* A; ~3 t
High percentage of recycled material and are 100% recyclable b, r z- j E( W, Y8 |* ]+ T
Disadvantages9 p8 k& y+ [) ?% E
Rusting (require maintenance to prevent corrosion); X' i) k/ `0 L. n# C$ K& }2 H2 i
Copper and lead roofs can be targeted by metal thieves& A$ K$ o' b6 ~
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure1 M0 e" r3 d0 m5 G* R' {% v/ Y
Cellular and radio reception may be negatively impacted
Metal roof ??; P' Y5 J0 y9 ^4 \4 T: d
what's going to happen in a hail storm, will it be very loud ???' v% ?% d; m& S8 x% t5 E
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 . k7 @$ |5 z( c1 Q7 PMetal roof ??& |+ y7 Q& y4 n" h
what's going to happen in a hail storm, will it be very loud ???$ T/ ]- ^6 x- W
Summer raining seas ...