For roofs exposed to plenty of daylight and different weather, we go with acrylic coatings, which might be great for UV and temperature resistance, although not ideal for flat roofs. Masking the leak that has a tarp is another choice, but be careful about climbing on to a slippery roof. https://machinery-movers56665.verybigblog.com/31547434/new-step-by-step-map-for-leaking-roof-repairs-melbourne