How to Stop Condensation on Roof Lights

April 3, 2023

Condensation is something that happens in the majority of our homes, and whilst there are certain things we can do to reduce how much we get, it’s just one of those things we have to deal with, particularly in the winter months. 

Condensation is likely to occur on your roof light as the warm air tends to rise and then liquefy as comes into contact with the cool glass of a rooflight, resulting in condensation on the surface. 

Stopping condensation on your roof lights takes a little perseverance from you and a few steps to help reduce the chances of it occurring. 

Condensation on your roof light doesn’t typically mean that there is something wrong with how it has been installed, however, it’s always worth checking that is has been fitted correctly to rule out that possibility first. 

What causes condensation on roof lights and windows?

Condensation is caused, mainly in the colder months, simply because warm air comes into contact with a cold surface like glass windows. The warm air is turned to liquid as it’s quickly cooled from the surface. 

Condensation on your windows or rooflights are likely to occur during the winter months, however, if you notice condensation between the panes of double-glazed glass, it means they’ve been damaged over time, or haven’t been installed correctly, so they’ll need to be replaced. 

Why does condensation happen more often in winter? 

Well, it’s quite simply because it’s colder outside which means the surface of the glass is cooler and the air in your home is warmer. This discrepancy between the two temperatures is what results in condensation forming more often. 

Whilst condensation might leave you feeling concerned, typically, it shows that your windows are well insulated. If they weren’t, this means that the hot air is likely to be escaping through holes in the window which means your house could be colder than it should be. 

Why you want to reduce condensation 

It’s important to note that if condensation continuously accumulates in certain areas of the home, it can result in problems in the future. 

Humid conditions often result in mould if not treated properly, which, in serious cases can cause health problems, structural damage to the home, as well as ruin things inside the home like furniture or clothing. 

How to stop condensation on roof lights 

Ventilation is the best way for you to reduce the amount of condensation on your roof lights, so take these tips on board to help reduce and stop it from happening in your home. 

Get a dehumidifier – Perfect for use in areas where it’s harder to circulate the air, using a dehumidifier is great for extracting excess moisture from the air. This helps to reduce the amount of condensation you’re likely to get on your roof lights. 

Install extractor fans and use them – Extractor fans are great when you’re cooking, showering and cleaning so have them installed in those areas and make it a habit to always have them on when you’re doing these tasks. 

Open your windows – Let air circulate your home and try to open windows, even in the winter months, to help reduce condensation. 

Keep doors open – As well as opening windows to let the air circulate, you’ll also want to keep doors inside the home open to let the air circulate naturally around the house. 

Try to reduce drying clothes inside – sometimes it can’t be avoided and during the winter months you need to hang clothes on airers to dry. But the moisture from the clothing is only going to evaporate into the air and cause condensation, so try to avoid it where possible. You could always use a dehumidifier next to drying clothes to help suck the moisture in there. 

Use window vents – some windows come fitted with sliding vents that allow moisture to escape when they’re open. If you have them, ensure they’re open as this will have a great impact on condensation. 

Final thoughts… 

Whilst it’s going to take a lot of practice and individual tasks to stop condensation on roof lights, it’s certainly possible with our handy tips above. Hopefully you’ll be able to ensure that your glass is clear at all times, allowing you to enjoy the natural beauty from up above.