windows steam up ?

ASH999

Hi Everyone,

I have put in new windows last year and some of them have bit of water at the bottom.

Why is this happening ?

I open my windows now and then for fresh air but still happens ?

Any advice much appreciated.

Ash.

nickj_2

lack of ventilation will cause condensation - water vapour will always find the coldest spot , http://www.condensationshop.com/home/

tanith

Do your new windows have trickle vents? If so keep them open that might help

fannyadams

Hi
I'm assuming the water is ON the window pane and not in between the panes (if it is in between the panes your seals have 'blown' - did you pressure wash the windows? that's how one of mine got blown - and you'll have to get your installer to come out and fit NEW WINDOWS - they can change the windows and not have to take the frames out look here for more info)

No doubt you have now 'sealed' your home against the elements, and the moisture that you and your family are generating is not 'escaping' as it did before and is accumulating on the cold spots hence the condensation you are seeing on your windows.

this site gives a clear and concise explaination of what's happening.

"Condensation can occur on any surface that is below the "dew point" of the air with which it is in contact. The "dew point" is the temperature at which condensation will occur for a given humidity level.

In most houses in winter, the inner surfaces of the windows are the coolest surfaces in the home. Condensation will typically appear there before it appears on other surfaces. Condensation is less likely to occur on interior walls, because they are typically warmer than "dew point."

Moisture Produced By VariousHousehold Activities: Family of 4 Activity
Cooking 3 Meals (per day) 1.0L
Running dishwasher 0.5L
Bathing (Shower) 2.5L
Bathing (Tub) 1.0L
Washing Clothes (for 1 week) 2.0L
Drying Clothes Indoors Or With Unvented Dryer (for 1 week) 13.0L
Floor mopping (per 100 sq.ft.) 1.5L
4 Occupants (Respiration - per day) Litres of water 6.0L

Note: 1 Imperial gallon = 5 litres; 1 US gallon = 4 litres
--
It soon adds up!

FWIW I have a dehumidifier ( the condensing coil one not the dessicant one) that runs overnight on the cheap leccy (1am to 6am for my provider) BECAUSE I dry my clothes indoors. it seems to keep the condensation down to a managable level.
HTH
FA
x

ASH999

Thanks evryone,thought the indows were damaged.
Will get a dehumidifier.

McKneff

You dont need a dehumidifer, you need ventitlation, fresh air, trickle vents, open windows.

Innys

McKneff wrote: »

You dont need a dehumidifer, you need ventitlation, fresh air, trickle vents, open windows.

When the outside humidity is high as it currently is in many parts of the UK (well over 80%), opening windows or trickle vents is likely to make things worse.

A dehumidifier is the answer.

apexblue

Just tried the shaving foam method and 2 hours in and working a treat.

Overnight the 2 panes applied with shaving foam clear the rest condensation running off them.

HarriDec

If they are misting inside (ie between the panes of glass), the seals are gone. You would need to get new glazing for the windows that are misting.