When should you replace your roof? Signs to look out for!

When should you replace your roof? Signs to look out for!

Installing a durable, reliable roof is very important since you want to protect your family and all the assets within your home. The only challenge here is that as time goes by, even the best roofs need to be replaced. Which brings the question, when do you know it’s time to replace your current roof with a newer, better one? Here are some of the main signs you should be looking for.

When should you replace your roof Signs to look out for!

What’s the average lifespan of your roof type?

Every roof type has an average lifespan, for example slate can last anywhere from 100 to 150 years depending on where you live. Tile roofs can last 20-30 years on average, whereas metal roofs can last up to 50 years.

Once you know the roof type you have, it becomes easier to figure out an approximate date for changing your roof. If the roof has already outlived its lifespan, then it’s most likely time to change it with something better.

Your roof is sagging

What that shows is that you have moisture under your roof. This is just the first sign, things will get much worse if you won’t replace the roof sooner rather than later. That’s especially true if you see any sagging spots at the lower points of your roof. You can check the roof from afar and if you see any signs of sagging, then it’s clear you need to replace it sooner rather than later.

You see any signs of fungi, mold or moss

Checking your roof’s state from time to time is very important, since you can narrow down if there are any issues with it or not. Things like fungi, mold or moss are a clear sign that your roof is damaged and water is already leaking in. It’s a very good idea to check your attic for any water damage or fungi/mold as often as you can, since you’ll find it easier to prevent costly repairs that might cost a whole lot more than a new roof.

Missing parts

If you have missing tiles, fascia or gutter guards, then this is a huge red flag. It shows that your roof is in a very bad state, and you need to address the problem as fast as possible. We always recommend assessing the state of your roof, since it’s easy to identify whether there are missing or significantly damaged roof parts. At that point, opting for a roof replacement is ideal and it will certainly eliminate a lot of the problems that might arise.

The roof inspector points significant problems

It’s a good idea to have a roof inspector check your roof at least once a year, just to ensure everything is ok. If the roof inspector says that your roof has significant damage throughout, then it makes a lot of sense to go with a replacement instead of repairs in a few places here and there. An inadequate repair can end up leading to more damage in the future, and that might increase the overall repair costs too.

You see light coming through the roof

When you’re in the attic and you see light coming from the roof, then that’s a very bad sign. It’s a great idea to check for these issues during the sunset, since it’s dark enough for you to see the light coming in. Some of these problems might be easy to repair, but if you have a lot of holes in the roof, then a complete replacement is a much better idea to take into consideration.

Dark streaks

What’s important to note is the fact that sometimes you will have dark streaks on your roof. Airborne algae can accumulate and eventually it will damage your roof. As time goes by, the roof quality will hinder and you will have to replace your roof. So if you see dark streaks and also any signs of sagging too, it’s a very good idea to tackle that problem as fast as possible.

Some roofing material is in the gutters

Depending on the roof type, it can be possible to find granular material either in the gutters or on the floor. Addressing that properly is extremely important, since any sign of roof damage should be taken seriously. It’s very important to check the gutters from time to time and remove any leaves or debris. However, if you see roofing materials accumulated in the gutters, that’s not ok and you may want to hire an expert.

The same thing can be said when it comes to falling mortar. Mortar is used for ridges as well as verges. It’s very important to check the mortars often, since it’s the type of material that comes with a rather short lifespan. Both verges and ridges tend to be very susceptive to cracking, so you will see them fall off eventually. Replacing the roof is a much better idea instead of just repairing it, since repairs will have a shorter lifespan and you’ll face the same issue again very soon.

Are the roof tiles loose?

Another important sign to focus on is whenever you see loose roof tiles. More often than not, seeing loose roof tiles means that there are some issues that need to be fixed. If the tiles are very loose and you also have missing tiles here and there, then the issue is more complex and you need to go for a complete roof replacement. It’s a good idea to contact a team of roofers, as they will be able to assess any issues and narrow down what causes the problem. Then it will be much easier to find a solution.


It’s very important to assess your roof and perform maintenance tasks at least once or twice a year. As you do that, it becomes easier to identify any signs of roof damage and you’ll know whether you need to repair or completely replace your roof. You should also check the gutters, see if the roof is sagging and check other similar factors.

Of course, your roof’s age will also dictate whether it’s time to replace your roof with a new one as well.

We highly recommend taking all these steps listed above, as it will be much easier to identify when and if your roof needs any replacement!

ARK Roofing Preston

We are proud to be one of the leading roofers in Preston, Chorley, and Blackburn we offer an extensive range of roofing services whilst our experience and high quality workmanship will provide you with complete peace of mind and satisfaction.We believe that good design and workmanship is the key to sorting out any problem. Our experienced team has over 30 years experience, ensuring that all roofing jobs are completed safely and to the highest standard.