Advantages & j5 k# d( `1 y; ]; i% D: SVery durable in cold weather- E( N, e5 s- C' O; v
High percentage of recycled material and are 100% recyclable2 `, y1 L* j, _3 d% U5 ~8 p
Disadvantages " h& w" Z& @1 n) F% h" c! vRusting (require maintenance to prevent corrosion)' ~+ s, f8 H4 H9 a0 o4 W) B1 O" J
Copper and lead roofs can be targeted by metal thieves* Q, v! L5 S* G j
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure8 ]7 K6 m5 o/ h$ J: z
Cellular and radio reception may be negatively impacted
Metal roof ??% l. e+ F) \1 k7 I2 O
what's going to happen in a hail storm, will it be very loud ??? % B0 B* t f) g& t. xSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 % h+ }/ K7 w/ g4 t" _6 |+ M$ {1 ~2 d
Metal roof ?? 7 g$ ~# F2 L/ i5 t- q. Mwhat's going to happen in a hail storm, will it be very loud ???% P! A C" s* ?4 N& J P+ @& K y
Summer raining seas ...
icing 发表于 2014-6-7 22:36 2 \* r# O9 C* _, G SMetal roof ?? ! ^& G& W4 e9 o3 F Xwhat's going to happen in a hail storm, will it be very loud ??? $ \7 q0 g0 O* [0 E' b% |6 cSummer raining seas ...
* Z! k! ], }; E/ G0 ~$ N8 mthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.