Advantages" b% o, g& U5 c* \
Very durable in cold weather $ @$ N/ U8 r0 \% Y* D9 MHigh percentage of recycled material and are 100% recyclable 6 P# l ]& B- G0 O7 \Disadvantages9 ~2 L$ u1 j( L6 N
Rusting (require maintenance to prevent corrosion) - V: k' n7 w: }Copper and lead roofs can be targeted by metal thieves 3 C* N! _6 `' J# y/ OHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure / u% j/ X& d' k$ Z* u5 y, BCellular and radio reception may be negatively impacted
Metal roof ?? 7 R: m A0 A' D% M0 x' swhat's going to happen in a hail storm, will it be very loud ??? : ]* }5 m5 }9 {% E$ bSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 - u' P4 i- @, p! N$ p4 A3 A! t
Metal roof ?? ; @: `7 n' D. J. \* g$ a% jwhat's going to happen in a hail storm, will it be very loud ???* R. i, p6 d5 o
Summer raining seas ...