Advantages + m; \3 Q& D( g( h" ~Very durable in cold weather/ L6 U) E$ o ~8 M1 F( M, ^
High percentage of recycled material and are 100% recyclable + Y+ L- T1 n! Y- n- GDisadvantages P: P% J! K9 T+ K6 v; M
Rusting (require maintenance to prevent corrosion) ; Z- Z+ y. T% x4 p$ aCopper and lead roofs can be targeted by metal thieves1 L: _/ k( y1 f; L$ }, v7 F
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure! h* U/ _* y+ U1 w
Cellular and radio reception may be negatively impacted
Metal roof ?? p/ T' `- e$ T$ K, t4 vwhat's going to happen in a hail storm, will it be very loud ???. W2 f9 h7 V6 t2 ~4 Y2 d
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 2 j4 ~8 S5 b# k0 w7 \Metal roof ??5 K Q3 S( w1 x2 W
what's going to happen in a hail storm, will it be very loud ??? ; u s; y m2 A; v9 \/ T" }Summer raining seas ...
& E* ]: I4 [- r6 X2 C6 [1 ?* sthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.