Advantages 2 I# P% w8 k2 v4 y0 fVery durable in cold weather4 p! ^7 G2 _' w7 ]4 @; v
High percentage of recycled material and are 100% recyclable 5 g4 l# h% _9 IDisadvantages: q: ~7 ?: [4 K5 Z- {
Rusting (require maintenance to prevent corrosion)7 u; p8 ]0 ?6 y, t3 \# h. m
Copper and lead roofs can be targeted by metal thieves 3 U3 h3 \5 o% f6 iHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure + `# `5 i6 x, }/ f) kCellular and radio reception may be negatively impacted
Metal roof ?? 6 y+ o$ J! @& g+ o: v2 Q) K, x$ Pwhat's going to happen in a hail storm, will it be very loud ???8 u: P: X U% H! D4 k9 p) r8 ]1 f
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 $ R3 ^; L- z, }, k
Metal roof ?? % f E' a+ U4 Y( ^5 s z$ @what's going to happen in a hail storm, will it be very loud ??? + a6 f" T6 L. |# `- ?* t/ |* f. lSummer raining seas ...