How Can Hot Weather Cause Damage to Your Home?

How Can Hot Weather Cause Damage to Your Home?

Posted By: John Published: 09/05/2019 Times Read: 522 Comments: 0

While some weather damage to homes, such as roofs blowing away in storms or flood damage can be instantaneous, damage from heat can occur slowly over a long period of time, in a way that you may not notice until it is too late. As such, it is important to protect your home from heat damage as a preventative measure before it is too late! 

Although most houses are designed to be able to withstand variations in temperature, with increasingly unpredictable and unusual weather, such as heatwaves, some problems may arise as the weather gets warmer. We take a look at some of the issues that may occur in your home’s interior and exterior during the summer months.


Hot weather can often lead to humid conditions, and a build up of humidity within the home can cause mould and mildew problems. Mould and mildew in the home can cause health issues, so elimaniting the risk of this is essential. Roofs are often one of the main culprits when it comes to excessive humidity, as attic spaces typically do not offer good airflow, and will usually be one of the warmest areas of the home. This extra heat and moisture in the roof space can also cause shingles or tiles to deteriorate quicker, or warp, causing them to crack. 

Humidity can also cause damage to hardwood floors, as the wood absorbs moisture and may end up buckling or becoming uneven. Adding a timber waterproofing coating to floorboards can be a great way of protecting flooring from humidity, and other water damage, as it stops the wood from absorbing water, preventing any weather-related issues. 


Some houses are at risk of subsidence when hot weather arrives. This is particularly the case for homes that are built on clay soil; as the soil dries out from the heat and lack of water, the clay shrinks and separates, making  the foundations less stable. This can cause structural damage to buildings, including cracked brickwork or plasterwork, and houses can move to such an extent that windows and doors become difficult to open. During the heatwave of summer 2018, claims for subsidence related damage increased by 20 percent from the previous year, revealing how warmer weather can cause a spike in such issues. While little can be done to prevent the soil underneath your home from drying out, using Murfill masonry paint on the exterior walls of your property can help reduce the appearance and occurrence of cracking by offering an elastic coating.


Another potential cause of damage to your home in the summer months is fire. Firstly, the warm weather often sees people spending time in their garden enjoying a barbeque, however, with this food-filled activity comes the risk of fire. In fact, each year, around 6,000 home barbeque-related fires occur, with the vast majority happening in the summer months. Using a fire retardant coating on garden timber, such as decking where the barbeque is used, or a shed where fuel for the grill is stored, is a great idea for preventing the spread of flames if an accident does occur when attempting to cook up a feast! 

When the sun shines brightly in summer months, some danger of fire can also be found within the home in the event that a glass item is left near the window. While certainly not the biggest cause of fire in the home, firefighters regularly warn homeowners to check windowsills for glass items, such as crystal balls, glass bottles or other ornaments. 

There have been, on average, 30 cases a year in the UK in which a fire has been started in the home by glass ornaments or mirrors being exposed to direct sunlight which refracts through the glass. This can set light to curtains or wooden furniture, for example, and flames can quickly spread throughout the house. While removing any glass items from the window area is a sure way to avoid such issues, accidents do occur and an item could be mistakenly left in the path of sunlight. To ensure your home is properly protected from such fire damage, using a fire retardant paint on your interior walls or wooden furniture can provide an extra layer of safety. 

Do you have any other helpful tips on how to protect your home against heat damage in the summer months? Leave a comment below to let us know!


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