Your roof doesn't have to be leaking to mean it needs to be replaced. Several factors should be considered when evaluating your roof, so watch out for these signs that you may need a new one.
Most asphalt shingle roofs last safely between 20 and 30 years. Find out when your roof was last replaced and determine if yours is too old. If you're not sure, take note to see if your neighbor' roofs are being replaced. Most homes in the same neighborhoods were built around the same time. If your neighbors are replacing their roofs, you may want to evaluate yours.
Age should always be considered when thinking about whether or not to replace your roof. If your roof has a few problems but it's young, you may be able to just replace parts of it or even wait a few years before taking any action. But if your roof has problems on top of being old, it may be time to replace it.
Correct shingles will lie flat. Curling shingles signify it's time for a new roof. If the edges of your shingles are curling upward, called “cupping”, or if the middle of the shingles begins rising upwards, called “clawing”, they are past their life expectancy and could cause major problems if not replaced.
Asphalt shingles have granules on them that keep away the sun which causes shingles to deteriorate more quickly when it reaches the asphalt. Check your gutters to see if you find excessive granules from your roof. If so, this is a sign that your roof is close to the end of its life and needs to be replaced soon.
Most of the time shingles become cracked because of wind damage. A few cracked shingles can be replaced individually, but if you notice cracking on most or all of the shingles on your roof, it's time to replace the entire thing.
If there are only a few shingles missing, replace them individually with shingles of a close matching color. Continue patch-replacing them until a bigger issue comes up, or most of your shingles have been replaced, or several go missing.
Moss can grow on areas of your roof that are cool and moist. It's not an immediate threat, but if you don't like the way it looks on your roof, you can carefully scrape it away. Be sure not to damage the roof by scraping away the granules off your shingles. Eventually, moss can cause damage by holding moisture against the roof and freezing against the shingles. If moss covers the entire roof and you don't like the way it looks, the only solution may be to have your roof replaced.
This is a much more serious problem. A sagging roof could mean there's a problem with the structural integrity of your attic, or worse, the supports in your foundation. This is a problem that only gets worse, so it's best if it's taken care of right away.
This one seems obvious. If light can get through your roof, so can rain, snow, and cold wind. If these light spots on your roof change shape or size when it rains, you have a leak. Small leaks in your roof can be patched, but large leaks that cause structural damage or large leaks on old roofs may mean it's time for a new roof entirely.
If your roof is doing its job, it probably goes unnoticed most of the time. Evaluate your roof to determine whether or not it's safe, so you can stay warm and cozy this winter.
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