 鲜花( 57)  鸡蛋( 42)
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Advantages0 q* S& j5 U! O
Very durable in cold weather
6 {1 j8 r5 e6 F) Q( o) M, d/ b0 eHigh percentage of recycled material and are 100% recyclable
- e, ` R6 V/ PDisadvantages/ F2 y* q* w' C2 g( ?, B5 C6 Y- t
Rusting (require maintenance to prevent corrosion)- Q* P- Y8 A1 s- |' V5 S, n# ]
Copper and lead roofs can be targeted by metal thieves: v9 k; s. d5 Q) I& K
High heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure( J. E! [& x1 s, w% p
Cellular and radio reception may be negatively impacted |
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