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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

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

First class

We moved last year and wanted to maximise the view right through from the rear to the front of the building, overlooking the river. After much searching we found FGC, who installed internal glass doors between the rooms. FGC were very efficient and although we are in the North they sorted out a subsequent small

Simon Ely
Simon

Mr P – Aylesbury

We have been very happy with the service you offer and indeed the product. We found the office responded promptly and the delivery was swift and when promised. The fitting staff were professional, polite and unintrusive. We would be very happy to let people look at our installation. 20150724

P & J

Our windows look great and certainly get the wow factor with visitors… Fitters were great, polite, very quick very tidy and helpful in advice. Yes we would recommend.. 20150113

No hesitation in recommending your company

Thank you for a good job even though there were a few issues along the way.
Chris and I will have no hesitation in recommending your company, products and services to others.
Kind regards Mike and Chris Rodwell 20161028

Fabulous loggias

The single-glazed frameless glass curtains have transformed our balconies into fabulous enclosed loggias that we can use all the year round to enjoy the sun in all seasons. Being single-glazed, there was no need for planning permission. The fitters were very good, careful, pleasant and courteous. We looked at a cheaper manufacturer but opted for

Gilbert Méal
Gilbert

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 & 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

Grand Designs!

We are both delighted with the FGC product and have no issues with any future viewings. From our perspective the “outside has truly come inside”, we use the decking on a daily basis as the FGC curtains have transformed the house which I think adds a significant value to the property. The only trouble now

New doors and they have transformed our relationship with the outdoor space

When it has been sunny we have made full use of the new doors and they have transformed our relationship with the outdoor space. The design and colour of the doors has modernised the look of the back of the house especially now we do not have lashings of uPVC everywhere. We were very happy

Work ethic simply cannot be doubted

Can I also thank your fitting team for turning out in atrocious weather that day, their work ethic simply cannot be doubted, please pass on our thanks to them and everyone involved for the service we have received. The doors look fantastic and we hope to add a third set, perhaps later this year.  

Mr and Mrs W

Great Product and great service

I can not fault the FGC team and most importantly the doors! We love our new Frameless Glass Curtains. We had a few delays on our project and adjusting the install date was never any problem for FGC.
Couldn’t be happier!

Matt Hodgson
Matt H

Published on September 30, 2016

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