Advantages ( a7 k- A% j) n. E" }. yVery durable in cold weather . W2 |8 u1 s: x2 j6 A( SHigh percentage of recycled material and are 100% recyclable) w5 {9 ?; K/ w* \# x8 F1 T
Disadvantages ( k: X1 x1 y9 \- t# K7 ~Rusting (require maintenance to prevent corrosion) 3 P+ M! |; c3 F+ MCopper and lead roofs can be targeted by metal thieves * }. G* q9 L, y) q0 ?High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure % }1 J2 V3 {9 k# SCellular and radio reception may be negatively impacted
Metal roof ?? * r& T W% f9 E' i' f# O+ qwhat's going to happen in a hail storm, will it be very loud ??? ) m& d7 o. K7 W" y$ \Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 / a, p x7 ~ V& R6 W
Metal roof ?? ( J2 o6 d) g% K" g2 p+ x3 Twhat's going to happen in a hail storm, will it be very loud ???' @9 l9 j- S; m$ P( m
Summer raining seas ...
icing 发表于 2014-6-7 22:36 : O' s& L9 \5 ?6 ~8 `4 ^. V" Z9 T. y: [/ ~Metal roof ?? + V) F1 C/ s2 v9 m) Qwhat's going to happen in a hail storm, will it be very loud ???% Y' b1 }( w3 K3 y
Summer raining seas ...
& K+ u$ F7 q) n' W, k1 sthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.