Advantages9 m7 k. K% O2 X1 |) {- x
Very durable in cold weather( q% D6 z% S; X7 F# R i6 a) T3 M
High percentage of recycled material and are 100% recyclable ' Q. s8 n' L8 O1 \6 V& HDisadvantages 9 U2 V( M8 p5 O& V6 ?) A6 Y8 ^' fRusting (require maintenance to prevent corrosion) $ p" I* S3 Q' T5 ?Copper and lead roofs can be targeted by metal thieves ( j3 y; K. a- L$ M; GHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure" V/ F$ i- g" ^3 ]* G7 P. _
Cellular and radio reception may be negatively impacted
Metal roof ?? 0 i. r" A' w1 n5 t {; zwhat's going to happen in a hail storm, will it be very loud ??? " ?. s$ ~7 Q. p* A! ?% a+ xSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 3 }3 z+ R$ r* m/ NMetal roof ??/ z7 v% f8 m# \" v
what's going to happen in a hail storm, will it be very loud ??? : J" j8 ^. Y- Q; i0 W3 sSummer raining seas ...