Flat roof gravel repair

Gravel on a flat roof is important for two reasons. First of all, it weighs down the covering surface of the roof, and secondly, it protects the roof from sun damage.
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Why do you put gravel on a flat roof?

Gravel on a flat roof is important for two reasons. First of all, it weighs down the covering surface of the roof, and secondly, it protects the roof from sun damage.

Most flat roofs traditionally have tar applied over the roof decking to make it watertight. The tar is then covered with gravel to keep it weatherproof.

To patch a flat roof

Over time, you might find that cracks appear in the flat roof and this can lead to water getting under its surface. If you are experiencing leaks or other water damage from your flat roof, then there are some quick steps you can take to repair the affected area.

Water can travel quite easily, meaning that the area showing damage may not be the source of the leak. To locate the true source, you should first check along the flashing for cracks or sun damage. Keep an eye out for areas of the roof with gravel missing. Once found, you should rake the gravel away from the affected patch and clean away any dust. You will need to make sure that the roof is clean so that the primer and patch can stick properly.

Using a paintbrush or roller, apply the primer and allow it to dry. Next, apply a tar and gravel roof repair patch. You can get a patch repair kit from most DIY shops or online. It is common practice that you patch 2-3 inches more around the damaged area, and create layers, making sure that there are no air gaps. You can use a paint roller to make sure that the patch is firmly applied. Then cover the entire patch with a fresh layer of gravel.

If you find that there are multiple areas to be patched, or that you continue to see water damage after repairing the roof, then you should consider hiring a professional to fit a new flat roof entirely. Most flat roofs require regular maintenance.


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