 鲜花( 57)  鸡蛋( 42)
|
Advantages
/ R0 j0 t; o; v _' zVery durable in cold weather
! d! n; l( S& A% jHigh percentage of recycled material and are 100% recyclable
3 X9 A/ j, `$ {, w9 m, e7 ADisadvantages
: ^5 D! u+ v9 _, {! K/ |3 yRusting (require maintenance to prevent corrosion)
: ~* ^3 \/ ]2 LCopper and lead roofs can be targeted by metal thieves
- G4 k9 |) t, N/ F. U% @High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure7 Y* `" F5 `/ C: E' G5 `$ P3 ~
Cellular and radio reception may be negatively impacted |
|