Double Glazing condensation problems UPVC Barnehurst Bexley
Double Glazing Condensation problems in UPVC windows
I receive a lot of phone calls from customers with Double Glazing condensation problems. There are 2 types of condensation problems. Problem 1 is condensation on the inside of the windows and problem 2 is condensation between the double glazed sealed units / glass.
What causes Double Glazed Condensation on the inside of the windows?
Most times this is caused by the room doors being closed hence a lack of air flow through the property.
I am often asked to fit trickle vents into the windows but I am not keen on this idea as it very rarely solves the problem and causes all the heating to flow out of the open vent plus increased noise from outside wind/traffic etc…
You can test this by leaving your small window open one inch and see if it cures the problem.
A list of Double Glazing Condensation Causes
- Lack of Air flow in the room i.e air bricks blocked or room doors closed
- No ventilation in the loft area i.e loft insulation blocking soffits vents or no roof tile vents
- Leaky water pipes i.e heating pipes leaking under floorboards…
- Damp i.e under floor air vents blocked or not 6″ about outside ground level
If you can touch the condensation with your finger then this is a problem 1
Another solution is to install a dehumidifier but they cost money to run plus can be noisy and require the water tank to be emptied regularly.
If you still want to close your room doors, why not fit a louvered door vent in the room door/s.
Common causes of damp and double glazing condensation
Moisture i.e Body heat – shower / bath – damp clothes – drying washing – fish tank – leaking roof or pipework etc…..
Lack of ventilation i.e closing room doors – fireplaces blocked off – no vents fitted in soffits – loft installation fitted tight into eves – no vents in roof tiles – blocked under floor air bricks etc…
Also check for timber and damp issues and contact local specialist firms with the correct instruments for testing and finding the source of the moisture…
Please remember that most times condensation within the room is NOT caused by a window issue.
Problem 2 Double glazing Condensation between the glass which you can not touch with your finger.
When the glue that holds the 2 pieces of glass together has been pieced or cracked due to old age this allows moisture to get between the glass panes.