Advantages, y' g: |! o7 k
Very durable in cold weather8 t+ T5 q5 A% n/ x* e, M
High percentage of recycled material and are 100% recyclable : Q1 J3 `& [+ e, \& ~# ]. P% QDisadvantages; T, R0 M) Z, \6 k, s M
Rusting (require maintenance to prevent corrosion)# c; l0 `+ k1 Y" s
Copper and lead roofs can be targeted by metal thieves 3 g8 u7 v/ E8 z# LHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure. s% G) R. J* m9 g" M# Z
Cellular and radio reception may be negatively impacted
Metal roof ?? 2 F5 @, ~5 U* }8 J8 t- h4 R) zwhat's going to happen in a hail storm, will it be very loud ??? . L5 |7 T' m! [6 X( `Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 5 k3 c9 W6 V. |) I% y8 oMetal roof ?? . G8 V7 k5 A8 u. w3 R9 Pwhat's going to happen in a hail storm, will it be very loud ??? P- R% D9 e2 iSummer raining seas ...
icing 发表于 2014-6-7 22:36 ; |! U5 I" g* M$ x
Metal roof ??. N% {' y" M- L; r9 ~
what's going to happen in a hail storm, will it be very loud ??? ! _, O u! Z1 }+ Z) SSummer raining seas ...
, M. u3 Q+ v; P- M- B$ j
that is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.