Slate shingles are considered as huge investments. However, many owners feel that once they have installed shingles, it is expected to last for more than ten years without any repair. It really does not make sense. If you are not checking your roof regularly, you could end up with a hole in your roof, followed by an expensive repair. If this continues to be ignored, you will have to get your roof replaced which is even more expensive.
You can also get more information about the benefits of roof replacement through various online sources.
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Signs You Need To Replace Your Roof
The first thing that will determine whether your roof needs to be replaced is to check whether there are shingles that need replacing. A good way to determine this is through the knuckle test where you tap on a few areas. If no sound hallow, this means that shingles are in need of replacement.
Another indication of the need to replace your roof is that, if more than 20 percent of the slate shingles are either lost, damaged, or does not pass the test of the knuckles. You can fix it, but you will end up paying more in the long run. The remaining slates will deteriorate and cause shingles to expel or damage.
If your roof is properly maintained, it is likely less in need of replacement.