Advantages & F! T# b" {- VVery durable in cold weather 7 P. X d. @/ _. f( eHigh percentage of recycled material and are 100% recyclable; f U5 R% q2 P2 E% T- Y0 c
Disadvantages 8 A+ y( I# E( D, Q2 v% A) eRusting (require maintenance to prevent corrosion)- b @/ M6 x6 o9 ?
Copper and lead roofs can be targeted by metal thieves* h7 {: q% z- n- m; t2 g1 X, k
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure0 O2 K! I7 e% A
Cellular and radio reception may be negatively impacted
Metal roof ?? * e7 i! `1 o, g9 V7 T8 ?5 I. Fwhat's going to happen in a hail storm, will it be very loud ???$ }- K. J( I4 X8 f0 C. C2 {2 W
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 - T0 w& @+ \8 p! L' p( f; \7 f* b
Metal roof ?? 2 f+ T( N# h( E, g' G' Rwhat's going to happen in a hail storm, will it be very loud ???/ b5 Z' r* U. I7 |$ s" Y
Summer raining seas ...