Advantages 2 j& L- [: J n3 Y; _$ AVery durable in cold weather3 `4 F' X* `( n+ C! {- q3 K3 U
High percentage of recycled material and are 100% recyclable " Z1 ~" m( c( e" J7 Y+ k1 ~Disadvantages 7 d3 {; `& O- e; m: Y& JRusting (require maintenance to prevent corrosion) 3 F1 x3 q4 R+ ^" ]5 ^9 G/ XCopper and lead roofs can be targeted by metal thieves/ y* E9 C0 c2 p
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure . c" X! R) k! E& [7 tCellular and radio reception may be negatively impacted
Metal roof ?? 4 q9 n/ ~+ y0 p; h8 c, vwhat's going to happen in a hail storm, will it be very loud ???7 F( g# T" x! Q! H+ u* P. F
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 2 @! P% n* [3 c5 g' w8 nMetal roof ??% d8 P. M; C. R
what's going to happen in a hail storm, will it be very loud ???. a5 C2 ?' u5 r' i! J+ ~ S+ w
Summer raining seas ...
6 k& u) M' T% l/ j1 P* _) ?( m" Jthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.