DIYnot
Local | Network
   DIYnot > Forums
Local | Network
DIYnot Network Local DIYnot Network Local  
  Forum IndexForum Index     RulesRules    HelpHelp     Join FREERegister Free     About CookiesCookies     SearchSearch     LoginLogin 

Condensation on bedroom windows


 
Post new topic   Reply to topic    DIYnot.com Forum Index > Windows and Doors
Search this topic :: View previous topic :: View next topic  
Author Message
RossPatzelt

from United Kingdom

Joined: 01 Dec 2010
Posts: 8
Location: Norwich,
United Kingdom

PostPosted: Wed Dec 01, 2010 7:37 am Reply with quote

Hi just found this after googlng double glazed windows steamed up.

Our upstairs windows are just awful at the moment. They steam up so much in the evening when we goto bed and in the morning I have to wipe them all over. We are now getting damp patches in the corner of our bedrooms. I was told to leave a window slightly open but when its -4 and we have a baby that isn't the greatest of ideas.

I always leave them wide open when we get up to clear them but this is getting me down now as theres little wet patches on the window sill.

Please help!
Back to top
 Alert Moderators

If you do not want to see this advert, click here to login or if you are new click here to join free.
Richard C

from United Kingdom

Joined: 26 Apr 2005
Posts: 10589
Location: United Kingdom
Thanked: 988 times

PostPosted: Wed Dec 01, 2010 9:34 am Reply with quote

This ancient thread concerns misting on the OUTSIDE of the windows which is caused by a characteristic of modern efficient double glazing & their energy efficient coatings.

What you are describing is condensation on the INSIDE of the windows which is caused in no particular order by;
Old inefficient double glazing
New efficient double glazing with no natural ventilation
High ambient moisture content inside the home
Drying washing indoors
Moisture generated by cooking, bathing, breathing not being able to escape
No forced ventilation (fans) in kitchen/bathroom/utility rooms
Lack of natural ventilation
Insufficient background heating
Inappropriate heating Ė paraffin or LPG heaters generate tremendous amount of moisture
Possible damp penetration through the walls

Moisture must be allowed to escape somehow or it will condense on the coldest surface in the room. Itís important to have one window in each used bedroom & the main living area slightly open for at least a couple of hours a day &, as youíve found, it will clear. Have you tried leaving a window in each used bedroom slightly open at night, fresh air never killed anyone & human beings exhale a great deal of moisture overnight. A slightly higher ambient temperature overnight will also help, switching heating off completely for 6 hours will reduce the dew point significantly. Hereís a link for you to read;
http://www.diydata.com/problem/condensation/condensation.php
Back to top
 Alert Moderators
RossPatzelt

from United Kingdom

Joined: 01 Dec 2010
Posts: 8
Location: Norwich,
United Kingdom

PostPosted: Thu Dec 02, 2010 6:20 am Reply with quote

Hi mate,
Not really possible to turn off heating as our little baby will get cold.
Back to top
 Alert Moderators
Richard C

from United Kingdom

Joined: 26 Apr 2005
Posts: 10589
Location: United Kingdom
Thanked: 988 times

PostPosted: Thu Dec 02, 2010 10:16 am Reply with quote

RossPatzelt wrote:
Hi mate,
Not really possible to turn off heating as our little baby will get cold.

I didn't tell you to turn the heating off, I said a slightly higher temperature overnight should help reduce condensation. Switching the heating off completely for 6 hours will reduce the air temperature to its dew point and beyond causing moisture in the air to condense on the coldest
surfaces. Your basic problem is one of excessive humidity inside the house caused by one or more of the problems I listed. Unless you either raise the ambient temperature or reduce the relative humidity by ventilation you will never cure the problem; only other thing I can suggest is a dehumidifier.

There is no reason why your baby should get cold even with a window slightly open, as long as it has suitable clothing & bedding, it'll be fine; the fersh air will even do it some good.
Back to top
 Alert Moderators
masona

from United Kingdom

Joined: 05 Jan 2003
Posts: 12668
Location: Essex,
United Kingdom
Thanked: 109 times

PostPosted: Thu Dec 02, 2010 1:26 pm Reply with quote

As mentioned a dehumidifier will control it but does produce warm air moisture back into the room!

Or get a leather cloth and keep wiping it clean

Bring back my childhood draughty old house back icon_exclaim.gif
Back to top
 Alert Moderators
RossPatzelt

from United Kingdom

Joined: 01 Dec 2010
Posts: 8
Location: Norwich,
United Kingdom

PostPosted: Fri Dec 03, 2010 9:50 am Reply with quote

ok thanks alot.
Back to top
 Alert Moderators
Search this topic :: View previous topic :: View next topic  
Post new topic   Reply to topic    DIYnot.com Forum Index > Windows and Doors All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Similar Topics   Replies   Views   Posted 
Bedroom Condensation, what else can i do??? 10 23800 Sun Oct 21, 2007 8:22 am
Condensation on UPVC bedroom Window. 2 1220 Mon Mar 05, 2007 2:24 pm
Mould around silicon on windows in main bedroom 20 2840 Mon Apr 23, 2012 5:45 pm
Shutters for windows in my disabled son's bedroom 8 600 Thu Feb 14, 2008 4:21 pm
type of opener in bedroom 4 440 Tue Jun 02, 2009 5:14 pm


 
DIYnot
Find an Expert | Find a Supplier | Search DIYnot.com
Network | Advertising | Newsletter
DIY | DIY How To | @home | DIY Wiki | DIY Forum
By using this site you agree to our Terms of Service / Disclaimer.
Please read our Privacy Policy. Copyright © 2000-2014 DIYnot Limited.