One of the benefits of bringing in flat roof specialists rather than having a pitched roof is that you have an extra space on the top of your home that can be used for a wide variety of purposes.

Some people fit their heat pump unit on the roof or fit solar panels, whilst others set up a space to entertain guests during the summer months when the rain and wind are less of an issue.

However, a more ambitious plan, particularly given what British weather tends to be like for most of the year, is to fit a pool on top of your roof.

Typical drizzle aside, there is a lot to consider if your heart is set on a rooftop pool, not least of which is whether it is possible at all.

If you want a rooftop pool, consult an architect first; pools tend to be very heavy and filling them with water makes them even heavier.

If your house is too old or not suitably reinforced, the rooftop pool will collapse the entire building before you have the chance for a midsummer soak.

Knowing how much weight tolerance you have to work with will allow you to find the right pool shell for the task.

The next call you will want to make once you find out it is possible at all is to your local planning authority. It is unlikely to be considered a permitted development because you will be increasing the weight of the roof by over 15 per cent.

This does not mean you cannot have a rooftop pool but it does mean you will need to have a thorough plan for its construction drafted with the help of an architect.

As well as this, you will need to get in touch with your insurance provider to ensure you can get water damage protection and how much your current policy would cover.