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How to stop condensation in a loft
by
Checkatrade

If you’re asking yourself, ‘how can I stop condensation in my loft?’ then you’ve come to the right place. Not only is it a health hazard, but it’s also a costly issue that rots the wood and results in repairs or replacements that soon add up.

Read our cold weather damage costs and how to prevent cold weather damage guides for further information.

Thankfully, we’ve put together this blog to help you prevent and resolve any condensation in your loft. So, read on for our helpful guide to avoid a disaster.

How to stop condensation in your loft

Condensation is caused by harsh weather conditions. As your roof takes the brunt of adverse weather such as snow and heavy rainfall, it’s more prone to wear and tear. The melting and refreezing cycle is also an issue, where ice forms in the eaves and causes moisture to move up the roof and seep into the attic, where condensation wreaks havoc.

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How to stop condensation in your loft space

How to stop roof condensation forming in your attic with insulationStep one: Regulate the temperature

In order to stop heat buildup that melts snow and triggers condensation, it’s important to regulate the temperature in your loft. This includes either:

  • Ensuring appropriate ventilation
  • Installing airtight insulation

Soffit vents are good for making sure fresh and cool air circulates your attic at all times, while foam insulation is perfect for attics that need a consistent temperature and airtight barrier.

Step two: Repair and maintain your gutters and downpipes

Damaged gutters and downpipes allow the walls on the outside of your house to get wet and cold, which is why ensuring they’re leak-proof and secure is imperative. If left unchecked, this could lead to penetrating damp that causes structural issues.

So, why not hire one of our professionals to come and maintain your gutters? You can see how much it might set you back here.

Step three: Ensure adequate airflow throughout your property

Make sure there’s always airflow through your home, such as your chimneys, vents, bricks etc. This will help avoid condensation build-up. Be sure to clean these regularly to stop dirt and dust blocking them and allowing moisture build-up.

How to fix roof condensation

If you’ve tried our above steps and you’re still suffering from roof condensation, it might be worth hiring a surveyor to investigate the issue and advise on treatment. We recommend doing this as soon as you notice the issue is worsening. The longer you leave it, the worse the problem will become.

Take a look at our guide for how to check your roof.

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FAQs

How to stop condensation in your loft spaceWill loft insulation stop condensation?

In order to allow the insulation to prevent condensation, you’ll need to keep the heating on and the temperature in the loft consistent to avoid cold spots forming, which is where condensation is most at home.

How to dry out condensation in loft?

By installing appropriate ventilation and making sure they’re clean and unobstructed. Roof vents also help, as does removing storage boxes or keeping them away from the walls.

Is it normal to get condensation in your loft?

Yes, especially during colder months. However, by following our steps above, you can manage and reduce the impact.

Why is there so much condensation in my attic?

Condensation is caused by warm air hitting cold surfaces, such as central heating rising through your house and settling in the cold spots of your attic. Our steps above will help reduce condensation. However, if it remains or worsens, hire one of our professionals to tackle the issue directly.

How do I stop condensation on my roof?

By following our steps above. It’s also worth making sure your bathroom or dryer vents are routed outside and not into your attic.

How do I get rid of moisture in my attic?

A dehumidifier is a helpful option, followed by installing foam insulation boards or rolls between your rafters.

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