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condensation problem of extension of bungalow

Postby sammymavis » Tue Jan 06, 2009 1:38 pm


i have a problem with condensation in my bedroom.

Its an extension built onto a 1930 bungalow which has three extenal walls.I have been told its singled brick build.There is therefore no cavity insulation,as like for the rest of the bungolw. The landlord has had recently this year installed a new damp course. It has been rendered and painted with waterproof paint.
The room has two very cold air bricks for ventilation. Has double glazed window with a vent thats left open at all times.
The loft has been insulated.
The room however is very cold compared to the rest of the place. A very noticable temperature drop. The room is heated with a radiator under window that is working at its full capacity , its seems to do very little to keep the room warm.

The walls are very cold to the touch.

A humidifier is used daily.
Furniture is kept away from walls to allow air to circulate.

The bathroom and kitchen has extractor vents when in use plus i open windows to allow air exchange when in use.
I use condenser tumble dryer so that i not using the radiators to dry clothes.
I do my upmost best to keep moisture low.
And i use moisture traps placed around my home
Heating is left on all the time on very low to avoid sudden temperature drops.
However condensation forms and i have a mould issue. The paint has been effected peeling and cracking on the walls.

So what should be done?

Should I keep the bedroom door open to allow air in from rest of the bungalow and allow circulation and to try and get the room to the same temperature as th rest of the home .
Or should i be increasing the temperature in the room .

Would wallpapering help to warm the room and stop dew from forming?
What other products could i use?
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Simply Build It

Postby stoneyboy » Wed Jan 07, 2009 6:18 pm

With a single skin brick wall to the extension you haven't got much chance of beating the damp. Close the door and use the de-humidifier in the room.
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Postby the specialist » Wed Jan 07, 2009 7:20 pm

Hi, when was the extension built? I ask this because you say it is single brick. It can not have been built in accordance with the building regulations and therefore is not classed as habitable space. This means it is not fit for the purpose it is being used for. The best way to warm up this room is to dri line it with a stud wall and insulation incorporating a vapour barrier. It will be well worth the cost incurred to do it.

the specialist
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Postby TheDoctor5 » Fri Jan 30, 2009 10:04 am

If you type the key words of your question into our search box to the left of the site you may find the answer is already posted or is in the DIY projects section of the website. Every post goes through a monitoring process and using the search box may speed up your answer.
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