Question: Tell us about your experience in accounts payable. Answer: Accounts Payable is mainly concerned with effective management of creditors. Effective management of creditors calls for correct booking of invoice under right accounting heads and making timely payments so that maximum available credit limit and discount is taken.
That's somewhat optimistic, according to the Metal Roofing Alliance, which says a metal roof lasts 40 to 60 years while the average life span of an asphalt roof is 12 to 20 years.. Your shingles might defy predictions one way or the other.
(Made up names for tile used in example) The life expectancy for a concrete tile roof is marketed as a 50 year roof. However, the underlayment and batten system, even if good material and the proper installation procedure was used, will not last that long and will have to be replaced generally around 30 to 40 years.