Usage Note: The adjective moot is originally a legal term going back to the 1500s. It derives from the noun moot in its sense of a hypothetical case argued as an exercise by law students. Consequently, a moot question is one that is arguable or open to debate. Thus a moot point, however debatable, is one that has no practical value.
Understanding and Determining Prices. After reviewing average costs for hourly work, the costs per area, and materials, you can get a good grasp of how much you can expect to pay for average roofing. Perth homeowners should always factor in the quality of the materials that are being used and/or installed.n average the prices to replace a roof will range from approximately $80 to $100 per square metre. This average price includes the removal of existing materials and proper disposal. The work performed, materials used, and final clean up.
The next thing you need to consider when totaling the cost of a roof replacement is the cost of tearing off your original roof. This depends on the company you hire, the size of your roof, and the intensity of the tear off. The price for tearing off the existing material on an average home is $1,000.f you have a 30 square roof and go with 15 lb felt, it will cost about $160. If you use 30 lb felt, it will cost approximately $320. Ice and watershield underlayment is installed in the valleys of a roof for extra protection.