Advantages) O. O, e' ~6 H, K+ m7 w6 Q
Very durable in cold weather( Q9 F' x2 {- h, M8 ~& T
High percentage of recycled material and are 100% recyclable ! X4 D; K; |. E0 z# XDisadvantages ( J4 |/ b7 S0 L+ SRusting (require maintenance to prevent corrosion). a5 @" H! L( S& H: z! H
Copper and lead roofs can be targeted by metal thieves2 y: r3 V5 F3 f# I! y
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure 6 V( K V/ Y' HCellular and radio reception may be negatively impacted
Metal roof ?? f0 A# P& V# h; z: M. i# ^
what's going to happen in a hail storm, will it be very loud ???4 a4 _# h/ g; F% u
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 22:36 ' z3 x! w, {! C% n
Metal roof ?? % S; w$ `* j* q$ u# V$ Fwhat's going to happen in a hail storm, will it be very loud ??? 7 r- ?* |% m$ R% \, m6 Q" WSummer raining seas ...
+ |+ [$ v% O1 `+ o9 A: @+ xthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.