The roof normally lasts for years but most of the time, because of water exposure and exposure to the other elements as well, the roof starts to deteriorate and the water starts to leak into the house. Though the roof will normally take years before it will need replacement, water puddles in roof dents will cause rust to start forming and it can cause mold and mildew to grow. Once these organisms start to grow on the roof, they will start to invade the porous portions of your tiles and it can start to put a heavyweight on it can start to corrode it. Once it does, the tiles will fall off from its mortar and the roof will start to deteriorate.
Leaks are sometimes localized damage on a certain area of the roof. It sometimes does not require an overall roof repair just to fix leaks, but sometimes, a simple leak may indicate more extensive damage. When roofs are made from durable materials and when they start to leak they indicate deterioration on the roofing. Missing shingles or cracked roofing, dents and molds can really be a big problem, but by far, the hardest part of it all is determining where the leak originates.
Fixing shingle roofs are not that difficult at all. Start by looking at the latest leak point and after you have marked it, you can try to pinpoint the location above on the roof. Once you have located the approximate location of the leak, you can then proceed to clean the area, it is better to start off with a clean roof, checking for missing roof shingles on the area. Look for damaged or cracked shingles and even try to see if there are any shingles that have curled. If you do not find any cracked or damaged shingles, you might want to start checking the upper areas, if you do not find any; you might want to call for the services of roof repairers. You might need to change a large area of your roofing due to deterioration.
If your problems are more of a curled shingle, you need to take care before you try to straighten them back again. During a warmer climate, it will be easy to uncurl them but during the winter season, they become hard and brittle, you will need to heat them before you attach them back again. You might want to try to attach them back with mortar or cement and apply roof paint. Attach it back again securely. You can do the same if you want to replace old shingles. Make sure that you attach them properly and make sure that they are not deformed.