While the most common roofing material on residential properties in Auckland is galvanised or coated steel, concrete tiles and coated metal. Whatever you have it is wise to keep a regular eye on it to avoid more extensive roofing repairs if things are left and slight problems become major ones.
A good place to start is looking at the environment that your roof is exposed to. Being exposed to geothermal areas, in spray zones close to the sea or under large trees and all affect the type of and frequency of roof maintenance that you require as roof flashings may not last as long under these types of conditions.
Apart from roof flashings pay very special attention to any pipe, flue/chimney or fixing that penetrates your home’s roof. Maintaining a water-tight seal around these items is incredibly important to your roof’s integrity.