How Does Weather Affect My Roof?

Weather changes can impact your home in ways that you must be prepared for. This article explains how your roof can be impacted by hot and cold weather throughout the year.

Are you curious about how different weather conditions will impact your roof? If you’re in the UK this is important because the weather can change suddenly and unexpectedly. One minute, you could be enjoying delightful sunshine and the next it might be hailing. As such, it’s important to address how changes in the weather will impact your home and specifically the roof. a

Weather changes do impact the roof. If you are aware of the impact, then you can avoid the need for expensive maintenance and safe roof repairs in London. So, let’s explore some of the ways that your roof will be hit by the weather.

How Hot Weather Affects a Roof

You might think that hot weather won’t impact your roof at all. However, this is not the case and even sunny days can damage your roof in unexpected ways. Similarly, a warm storm can cause debris to land on your roof and damage different parts of it. Here are some of the key ways that your roof can be impacted through the summer season.

Thermal Shock

Thermal shock occurs when the temperature exceeds the average levels throughout the day and then suddenly drops in the evening. This is a common occurrence in the UK through the summer season. The problem is that this can cause the membranes to expand and contract in a short period. Eventually, this can damage the integrity of the roof and it could also lead to problems with the warping of certain areas. This is particularly true if parts of your roof are metal.

UV Rays

Your roof can also be impacted by UV rays. If your roof is constantly exposed to the heat and power of UV rays, then it will dry out. This can cause wood structures to become weaker over time and may even shrink in worst-case scenarios. It might even lead to areas of your roof cracking. Luckily, there is an easy way to address this problem. In terms of the right roof maintenance, you could consider adding roof coatings. This could become more important as the UK experiences hotter summer seasons in the future.

Moss Growth

Moisture can develop across roofing structures. A higher level of water can lead to moss growing across the roof and spreading at a far more rapid pace than usual. This means that you need to take steps to maintain your roof. Moss, if left alone, can cause structural damage to different areas of the roof that you must avoid.

How Cold Weather Affects a Roof

Cold weather can also lead to changes with the roof that you may need to be aware of as a homeowner. This is due to a lower level of sunlight and a drop in temperatures as well as heavier levels of rainfall.

More Rain

Rain is the most common type of weather we experience in the UK. If your roof is constantly being hit by high levels of rainwater, then it can have a significant impact. This is particularly concerning if you have a flat roof which is one of the reasons why insuring a flat roof is often going to be more expensive. You need to take measures to ensure that the water drains away otherwise it’s going to put a lot of weight on your roof.

When completing roof weather maintenance, you need to make sure that there are no puddles of stagnant water.


Rainwater should drain away off your roof but the snow won’t. Instead, it could again lead to there being more weight pressing down on your roof. Letting it simply melt away may not be enough during times when there is excessive snowfall. One option would be to knock the snow yourself. However, this can be dangerous and may lead to more damage. As such, it could be best to instead use a professional to get rid of high levels of snow on your roof for you.

As you can see UK weather can impact your roof in a variety of different ways. The good news is that there are always steps you can take to avoid your roof getting damaged. Remember, you should get your roof inspected at least once a year to check for any issues that need to be addressed with the structure or integrity by the roofing contractors.

Leave a Comment

Your email address will not be published.