Advantages% q( e3 ~( o& o- s3 `
Very durable in cold weather g) V; Q7 n! `+ w4 s
High percentage of recycled material and are 100% recyclable Y- {1 {! X0 z
Disadvantages2 v. _$ ?+ `' p& Y6 [" A4 N l& R+ ~
Rusting (require maintenance to prevent corrosion)5 P5 O4 m; G) k) z5 T4 e
Copper and lead roofs can be targeted by metal thieves2 A# Z( M+ o' n5 x$ j( l# U
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure" V7 F o; e9 o/ L$ e- j
Cellular and radio reception may be negatively impacted
Metal roof ?? , a& |% J$ y& b0 k. L8 Fwhat's going to happen in a hail storm, will it be very loud ???4 `, [" W% W: t( q
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 ' h) j9 d- J$ D4 X# E
Metal roof ?? 5 K6 n0 F2 I5 a* ^, A) Awhat's going to happen in a hail storm, will it be very loud ??? 3 J( k2 C4 X" G4 w/ RSummer raining seas ...