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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.

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What our customers say

Our Frameless Glass walls

Putting a frameless glass walls between our South facing lounge and dining room conservatories was one of the best things we have ever done in our house. When shut, they keep out the cold in winter and, most importantly, the heat on very hot summer days. When open during sunny winter days, the heat warms

Heather Glasgow
Heather

Hugely impressed by your level of service.

I just wanted to say that I remain hugely impressed by your level of service. The two chaps who came out to service our doors were once again marvellous.  They are very polite and clearly very skilled. It’s very easy these days to complain and sometimes it’s nice to pass on credit where it is

Mr H B @ Kingston

I am absolutely thrilled with the finished result. You were straightforward to deal with and visiting your site was appreciated. You gave clear statements regarding specification and developed the product to meet our needs. Installation was at the agreed time and there was reassuring and prompt follow-up as the new design needed refining. The product

Brilliant After Installation Service

Our FGC sliding doors were installed in May 2018.
Although we have had two relatively minor problems – neither of which stopped the doors from working – FGC have attended very promptly to carry out remedial action.
Excellent customer service from head office and excellent service from install technicians.
Many visitors comment

Nick Medlam
Medlam

STUNNING!

FGC patio doors have replaced Georgian windows overlooking my garden, bringing the outdoors into my upper ground living room all year round. Opening out onto a balcony with steps down to the garden, they’ve transformed the whole flat. Elegant and easy to use, they also let in loads more light and keep out far more

Tessa Evelegh
Tessa

Mr A B

We are very pleased with the glass curtains, which do what we want them to – separate the house and conservatory, meeting building regs, but as unobtrusively as possible. We were very happy with the service we received and the efficiency of those who fitted the curtains and we would have no hesitation in recommending

Dennington, Suffolk

From the start to the finish we felt comfortable with your staff and installers. It was a product just as we had hoped and envisaged for our new House double glazed, frameless glass doors in 4 openings! Perfect. The doors are a talking point and every body comments on how good they look! They are

Excellent product and great service

I am delighted to have found FGC online! I installed their glass curtain between my office and the kitchen/living room area. It looks fabulous! Easy to use and can be locked.
I visited the factory and it looks smart and professional. All communication has been fast and also very professional. Will definitely use again!

Lilia Severina
Lilia

Porch glass cutains

Everybody from survey to install knew what they had to do and advised on what needed to be done prior to install. The glass cutains are just what was needed for the porch and have created a talking point within the village. They do look splendid and we are very pleased with them.

David Reeves
David r

Mr G H

I was very impressed with your facilties and how all the aspects of my purchase were explained. Your installers were thorough and polite and finished off the installation well, and would have no problem in reccommending you to others. Your aftercare was very good and prompt. All in alll very impressed with the doors and

Replacement of Timber Bi Fold Doors with Frameless Curtains

When we purchased our house, it had two sets of timber bi fold doors, each spanning an opening of approx. 5m. These caused us a lot of problems with warping through the seasons, and the ration of timber to glass limited the light into the rooms.
We therefore replaced them with the frameless curtain

adam tamburini
Adam

Mr & Mrs R – Berkhamsted

After researching the market for a contemporary sliding minimal frame patio door, we were delighted to come across Frameless Glass Curtains. We were so pleased with the doors we ordered another set for the dining room and were not let down – the service we received was consistently good from staff both in and out

Published on September 30, 2016

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