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Did you know that with proper care and maintenance, roofs with asphalt or fiberglass shingles can last up to 40 years? If your roof is made of steel or copper, it has the ability to last well over a century!

While the numbers above are impressive, there’s something you have to understand – maintenance is a key factor in longevity.

If you moved into a house recently or it’s been 50 years since the roof on your home has been replaced, then knowing the answer to the question “how long does a roof last” can be a bit more challenging.

The good news is, you don’t typically have to guess whether or not it is time for roof replacement. There are some tell-tale signs you can look for.

Keep reading to learn what those signs are.

1. You See Daylight Through Your Roof Boards

To determine if this is an issue, you are going to have to get in the attic. While it’s a good idea to take a flashlight along, before you turn it on, take stock of the underside of your roof.

Do you see any streams of light coming through holes or cracks? If you do notice any light, then it’s probably time to think about a replacement.

Keep in mind – if there’s light getting through your roof, then water is, too.

2. Shingles that Are Damaged or Missing

Are the shingles on your roof buckled or curled? If so, it is yet another sign indicating you need a new roof. Take a close look at the slopes on your home – these are the areas exposed to direct sunlight the most during the course of the day.

Do these shingles appear curled? Or, are they missing granules? If so, there’s a good chance your shingles have surpassed their life expectancy.

There’s also the possibility that your roof is defective. At this point, it’s a good idea to contact a professional roofing contractor to take a closer look to determine what the underlying issue actually is.

3. Leaks

This is the most obvious sign that you need a new roof. If water is finding its way inside of your home, it can cause serious issues.

Be sure to look closely for any signs of water pentation on your roof, at the eves and in the attic. While searching for signs of a problem, remember water can travel quite far. As a result, where you actually see the water may not be where it is getting in.

In some cases, a total replacement will not be necessary. You may be able to get away with replacing a few shingles. However, it’s important to make sure a professional inspect the problem to ensure the issue isn’t bigger than you think.

4. Dark Stains or Streaks

This is an issue that may be more difficult for you to identify. If you notice any dark streaks or stains under your roof or running down your walls from the underside of the roof, then there’s a problem.

In these situations, your roof is probably leaking. This leads to the moisture damaging your home’s roof, as well as it’s interior structure.

5. The Roof Valleys

Have you noticed the shingles in the valleys of your roof have begun to fall apart or are missing? If so, then it is a tell-tale sign you need a new roof installed. The valleys are one of the most crucial parts of your roof.

Rain and snow flow through these areas and into your gutters. If your valleys are compromised, then you run a real risk of serious roof leaks.

6. Mold or Mildew

Have you noticed mildew or mold growing on your walls or ceilings? If so, this may be a sign that your roof is leaking. However, it could also be a plumbing problem or the result of condensation.

One way to know for sure if your roof is the culprit is to see if your insulation is dry. Also, make sure there is plenty of ventilation in the home.

Keep in mind, mold and mildew not only creates ugly stains. It can actually cause a number of health issues for you and your family. As a result, you want to have the cause of this problem addressed as soon as possible.

7. Sagging Areas

Similar to how water can make cardboard weak and soggy, water can cause your roof’s structure to sag. If you see areas of sagging in your roof, take your hand or the handle of a broom and prod the sagging area slightly.

If you notice the spot feels wet or soft, or that it bends easily when you touch it, you know for sure there is moisture damage. This is a situation that is only going to get worse as time passes, so be sure to call for professional help.

Structural damage like this can lead to a number of serious issues for your home.

How Long Does a Roof Last – Is Yours Past its Prime?

The answer to the question “how long does a roof last” isn’t black and white. There is a wide array of factors that can impact how long your home’s roof will last.

If you are unsure if your roof needs to be replaced, then get to know the signs of a problem that have been discussed here. If you see any of these issues, the best thing you can do is call for a professional inspection.

To schedule an appointment, or if you have questions about your roof, be sure to contact us. We can help ensure your roof lasts as long as possible.