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Which of the below roofing materials is most cost effective?

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in Basic Civil Engineering by (111k points)
Which of the below roofing materials is most cost effective?

(a) Asphalt

(b) Plastic

(c) Rubber

(d) Metal

I had been asked this question by my school teacher while I was bunking the class.

Question is taken from Cost Effective Materials in section Materials for Construction of Basic Civil Engineering

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Best answer
Correct option is (d) Metal

The best I can explain: Metal roof is the most durable one that can even last 100 years.  It provides heat and cold resistance and it is easily installed. Asphalt, plastic and rubber are recycled materials but don’t last long.  In terms of life, metal roofs are most cost effective.

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