Advantages( U8 ~% E& w% l6 ]5 g3 r+ }
Very durable in cold weather& @! v2 P( \: ?$ W$ m
High percentage of recycled material and are 100% recyclable 9 C- ?; e7 p. v6 U3 ~& pDisadvantages : v8 A7 y1 |" k% s# Q HRusting (require maintenance to prevent corrosion)# g e/ Y9 T1 y; i; D* [
Copper and lead roofs can be targeted by metal thieves 9 y* a/ o: f2 _' n. a/ zHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure % f: b+ Z/ G% C/ yCellular and radio reception may be negatively impacted
Metal roof ?? % l( A5 Y/ A. rwhat's going to happen in a hail storm, will it be very loud ??? 9 [7 e8 v; e$ i& N6 h8 D# nSummer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 8 ^6 W, ~' {0 w( M# K
Metal roof ?? ; o8 T8 C& ~' \1 V4 r( Y* d8 d' {what's going to happen in a hail storm, will it be very loud ???: S) `# ]; @' i# n; y" m4 N. n
Summer raining seas ...