Everything has a lifespan – clothes, cars and even your roof. However, not many people think about the maintenance or replacement of their roofs until there are leakages. Every building element starts to show some signs of depreciation after some time, and these signs are indications that it is time to get a replacement. But what are these signs? Some of the signs are not so obvious and so you’ll have to be very observant. This article lists six signs that will help you know when to replace your roof. Plant growth on roofOnce there is moisture on your roof, over time, there will be mold and plant growth. These growths weaken the roofs and reduce the waterproofing property of the roof. The moisture accumulation may have been caused by bad roofing materials or bad installations. Loose or missing shinglesAsphalt shingles are common roofing materials, and once they exceed their lifespan, they begin to break off. And once these shingles break off, they create a pathway for water into your home. Once you notice that your shingles are not fixed properly, curled, cracked or damaged, then it's time to replace your roof. Leaks in the atticWear your big boy pants and grab a flashlight because it's time to check your attic. Roofing problems may not show when in the house, but they’ll definitely show in the attic. Use your flashlight to check for light leaks and water leaks. If you can see beams of light passing through your roof or moisture deposition, then you have a leaky roof and it's time to replace. The roof looks badA quick visual check can help you determine if your roof is due for replacement or not. Simple visual markers like a sagging or failing roof are definite indications that it’s time to change that roof to avoid any further damage. This sagging may be caused by environmental hazards over time, therefore constant visual inspection should be done at intervals. Your roof is oldRoofs have a lifespan and many roofs come with a warranty of 20 years. Therefore, it is important to review your roofing records to know when the roof was installed and estimate when it might need replacement. So if you haven't changed your roof in over 20 years, then it is probably time to change it. Loose granulesShingles are materials used for roofs, which deteriorate after some time. When these shingles become weak, they break off into granules that will be scattered around the eaves of your roof or around your house. This sign of loose granules shows that your roof is losing its weatherproofing property. Roofs are meant to last for a very long time but if the materials used are not good or are not installed properly, this will definitely reduce the lifespan drastically. But not to worry, because once you see any of the above signs, you know it's time to replace your roof. And you can hire a thorough and professional roofing company like Precision Roofing, which gives the very best, and has been around for over 30 years, with its headquarters in Kansas City, Kansas.