Get all your news in one place.
100’s of premium titles.
One app.
Start reading
Dublin Live
Dublin Live
National
Amber O'Connor & Emma Nevin

How to prevent condensation on windows - even if you have double glazing

As temperatures in Ireland continue to plummet with sleet and snow hitting parts of the country, many households will likely have condensation on windows to deal with.

Condensation is water beads that form when hot, moist air meets a cool surface. It manifests on windows in the colder months due to warm air from inside the home hitting the cold glass windows.

It is mostly harmless but if windows aren't maintained, the moisture could develop into dangerous mould that can cause health issues like asthma, eczema and bronchitis. While there is no simple answer for getting rid of condensation, one expert has issued six rules that households can follow to avoid it, Mirror UK reports.

Read more: Dublin to shiver in subzero temperatures with Met Eireann's 'hazardous' conditions warning

Allan Reid, the Founder of Art Windows & Doors, explains: "While double glazing is effective in preventing some condensation, the colder conditions can, unfortunately, bring mould regardless." Here's the double glazing expert's top tips, starting with the rule everyone should follow to help reduce condensation.

Ensure adequate ventilation

"Whether you have single, double or triple-glazed windows, proper ventilation is always the best way to reduce condensation," says Reid.

"For double and triple-glazed windows, condensation between the layers of glass is indicative of a problem, such as the air-tight seal failing and letting the insulating gas out."

Replace the air tight seal

"Replacing the air-tight seal between your layers of glass is essential to prevent water vapour. If the seal fails and the insulating gas is not present, the subsequent water vapour will reduce the lifespan of your windows and potentially lead to draughts and chilly air," he explains.

"Luckily, replacing an air-tight seal is often inexpensive, costing between £5 (€5.70) to £10 (€11.40) per window."

Keep an eye on varnish and paint

"If the paint around your windows is starting to chip, bulge or flake, this indicates a condensation problem. Whether moisture is trapped underneath the paint or the varnish begins sweating during the colder months, this can exacerbate condensation problems further."

The expert adds: "In addition, paint can often hide dampness, which is caused by condensation. By ignoring the flaking paint and continuing to replace it, you avoid treating the problem, allowing it to worsen."

Install an extractor fan

The pro says: "You can install an extractor fan directly into a double-glazed window (and even single-glazed windows) for a significant reduction in condensation. This is particularly effective for rooms prone to steaming, such as kitchens and bathrooms, with cooking and showering leading to an increase in water vapour."

Trickle vents

"Trickle vents can be fitted into all different types of window frames, including double and triple glazing. These are highly effective at aiding the circulation of air in your home, leading to a reduction in mould, condensation and dampness. Unfortunately, some older homes may lack these features," Reid explains.

Additional glazing

"With triple glazing up to 40% more thermally efficient than most uPVC double glazing, the extra layers can also help to reduce draughts, condensation and cold spots. With better insulation, you can moreover lower your energy bills and keep your home warmer in the colder months, meaning the extra cost is often worth it - especially as bills spiral," according to the pro.

The double glazing expert says: "PIV units have several great benefits for your home, including improving the quality of air, eliminating humidity and condensation and reducing pollutants. PIV systems can also help to reduce any dust mite allergens and asthma symptoms.

"Another great bonus is that PIV units are incredibly cheap to run, costing from £1 (€1.14) to £2 (€2.27) a month after installation. For their low cost, their effective capabilities in eradicating both mould and condensation make them a popular choice."

Read next:

Sign up to the Dublin Live Newsletter to get all the latest Dublin news straight to your inbox.

Sign up to read this article
Read news from 100’s of titles, curated specifically for you.
Already a member? Sign in here
Related Stories
Top stories on inkl right now
One subscription that gives you access to news from hundreds of sites
Already a member? Sign in here
Our Picks
Fourteen days free
Download the app
One app. One membership.
100+ trusted global sources.