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Causes of condensation on bifolding doors & windows

What are the causes of condensation on bifolding doors and windows? In the Autumnal months, we see many different fluctuations in external temperature. There is a mixture of warm days and colder nights. A result of this is that you may be surprised to see condensation on the outside of your double glazed units.

Causes of condensation on bifolding doors

What causes condensation on bifolding doors?

If you see condensation on the outside of your double glazed unit, it is logical to assume that either your doors are at fault, or there is a problem with your glass.

Condensation is often evident in September and October, but there is no great cause for concern. We offer some information and advice about condensation and what you can do about it.

No new windows or doors eliminate condensation.

The sales message of some window companies wanting to sell you new windows and doors is that you will elimiate condensation.  No new window or door cures condensation.  While double glazed doors or windows with insulated frames certainly help reduce it, other factors cause moisture in the home.

Heating, cooking, living and even sleeping affect moisture levels in the home. Do your research and you will see a standard message amongst professional window and door companies, and the glazing industry bodies that condensation can never be eliminated.

Why do you see condensation on your double glazed windows and doors?

Condensation on your new windows and doors can occur even on the most thermally efficient of products. If you can see the formation of condensation on the outside of your glass, this is perfectly normal.

Condensation on the outside of double glazed units just means that your new energy efficient doors and high specification glass are working together. It is keeping the heat in your home and the cold out.

Why is condensation on the outside not the inside of your doors?

You may be confused as to why you are getting condensation on the outside of your windows, but this is merely demonstrating how useful modern glass is.

On older single glazed windows or timeworn double glazing without insulation, the “cold spot” was previously on the inside of the window. The thermal efficiency of polyamide thermal breaks in the aluminium, argon gas, coatings and warm edge spacer bars in the glass has shifted the cold spots to the outside, where they should be.

Simply put, the heat is now being retained in your property, rather than being lost through the glass or the frames. Naturally, this condensation will disappear as soon as the temperature rises outside.

Tips for reducing condensation in your home.

  • Ventilate your home as much as possible.
  • If you have trickle vents in your windows, do keep these open.
  • Avoid sudden temperature increases – it is better to have a consistent temperature in the home.
  • Ensure you regularly clean off any moisture.
  • Use kitchen and bathroom fans where fitted.
  • Avoid drying washing in the home.

What to expect from frameless glass doors by FGC.

Our unique and patented frameless doors feature the latest in thermally insulated aluminium extrusions and very high specification glass with insulated spacer bars, advanced coatings and a top quality construction.

If you do see condensation on your windows or our doors, there is nothing to worry about.

At this time of year, condensation has formed on the outside of your doors. This is largely due to the increased moisture in the air.

Where your bifolding doors or windows are located is also likely to affect whether you get condensation on the outside and how much. North and South facing properties can differ, your location can be a factor as well.

So if you do see condensation on your new windows and doors, these are doing what they have been designed to do. To keep the heat inside your home.

We also offer a full range of aluminium windows, bifolding and sliding doors,
and front doors as FGC Bespoke Aluminium.

Visit the FGC Showroom

You can now visit our showroom in Strood, Kent.

The full range of Frameless products are on display in wide variety of configurations.

We request you contact us to make an appointment before visiting to avoid overcrowding.

Find out more about the FGC Kent showroom.

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What our customers say

We love the doors – big thanks to you and the team at

Mr Lawrenson

We are very pleased with the installation. It has been much admired. Mrs D,

Mrs D, Kent
We wanted to connect two room – a ‘sun room’ and living room -by replacing a large window with some glass doors. We contacted local suppliers and Googled ‘glass partitions’. Local suppliers weren’t much help, however the Google came up with just what we wanted – frameless glass doors. We contacted Gary for a price. He arranged to come and do a survey the following week – 600 mile round trip – arrived on time.

We had 3 sets of doors installed in April. We had searched far and wide for bifold doors and those supplied by FGC were undoubtedly the most striking. We have had favourable comments from visitors and the doors are functioning well. Our dealings with FGC have been excellent and they have attended since the installation to make some adjustments. Although this is an expensive product, it looks stunning and has performed well. FGC worked closely

A strip of the furry trim at the top of the frame that the doors run on had come loose. On the one hand the sort of thing that one could have a go at fixing; on the other hand having witnessed the care and attention the FGC installation team do their work; I thought it best to leave it to them. Not an emergency, I contacted HQ FGC and asked that when a team

Shindi Poonia
Shindi

I just wanted to follow up as I was in the gallery this morning.  The guys were brilliant, on time, tidy, efficient and they fitted the door perfectly. We are very pleased  

What a great product and great company. Smooth process, professional services from surveyor to installation team, and everyone in betweeen. I could not recommend them high enough. Early days, but so far

Nigel Taylor
Nigel

It’s nearly a year since you installed our glass curtains. They have been really great, exceeding our expectations, particularly during the winter months when they were absolutely draught free. When they are fully open you really feel that the lounge is part of the garden, it all becomes one space. Many thanks, they were one of our best decisions.

Thank very much – we are so happy with the windows !! I cant wait for next Spring when we can use them properly

Mrs Robertson
Mrs Robertson

The service from your company has been exceptional throughout, cannot fault

Mr Thomas
Mr Thomas

The service I received from FGC was professional and prompt from the initial on site survey through to installation and completion. Added to this the finished product has exceeded my expectations. It has enhanced my home with style and individuality, and enabled me to make use of the space in a way that is ‘unique’.

we are very pleased with our new porch door which enhances the look of our Victorian house. Very professional job from beginning to end with a great deal of trouble taken to get the measurements exactly

Philip N Brown
Phil & deborah

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Published on September 30, 2016

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