Advantages! ]+ E6 O+ i! _. D$ a% X
Very durable in cold weather + O& p! S2 x8 a1 ?( o& aHigh percentage of recycled material and are 100% recyclable* v: M( j6 `% n1 N& e) p
Disadvantages7 X1 H6 q W, u) v: E1 [
Rusting (require maintenance to prevent corrosion)( N2 o& X% G, Y$ ?2 t6 B
Copper and lead roofs can be targeted by metal thieves+ l1 y5 u- A" |$ [ `
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure' X0 m- ]( R. o7 `4 V3 a
Cellular and radio reception may be negatively impacted
Metal roof ??1 q' w& q9 i, C5 K4 ?6 A1 {* ~
what's going to happen in a hail storm, will it be very loud ???* H( J) f, E( T! Z7 n5 B. h
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 5 a, P( x4 B' \% c$ `0 Z
Metal roof ?? ' i& G- Z3 ?6 s1 e5 W5 Zwhat's going to happen in a hail storm, will it be very loud ??? & ?$ {1 \3 |3 DSummer raining seas ...