Replacing a roof should be the last option for the building owner. When the time comes to re-roof a commercial building, a thorough evaluation of many different aspects needs to take place. The use of the building, the sensitivity of the interior to water and moisture, the long term plans for the building, environmental requirements such as odor and noise, as well as the budget.
Thinking of the life cycle cost of the new roof should be an important part of the decision making process. The cost of maintenance and the risk involved should factored in as well. The cost over the years of the cheapest option in terms of initial price, could easily surpass the total cost of other options that could be more resilient, easier to maintain and repair as well as less problematic over the years.