Help please with condensation in my bungalow ?

stephenliverpool1

Hi all,

For 17 years, I have had condensation probs in my bungalow.

I have a dehumidifier in centre of my bungalow, which helps. I will get mould on the ceiling of one of my bedrooms quite often. Other rooms are okay.

I had a load of hedges at the front of my bungalow but cleared them away a few months ago. This has helped my kitchen at the front of my bungalow as I would get mould and condensation probs on one the walls (at the front of my bungalow)l and ceiling but this appears to have gone.

I have just seen an advert on TV with regards condensation :

http://www.envirovent.com/home-ventilation/videos/tv-commercial/

Before I try them, I was wondering if anyone could provide some advise.

Thanks

TheCyclingProgrammer

Have you got a humidity monitor? What humidity level is your house on average? The ideal range is 40-60%, depends on your house temperature though.

We are trying to sort out the condensation we get on our windows with a dehumidifier. We tend to get condensation on the windows if the outside temperature drops below 5C.

Before we got the dehumidifier average RH throughout the house was in the high 50s at 20C. With help of the dehumidifier we have managed to get it down to the 47-52 range which has reduced the condensation greatly to a small manageable amount (enough to just evaporate off in the morning when the heating comes on).

The fact you are getting mould suggests a high relative humidity over a prolonged period of time - above 60% and you can start getting mould within a week or two.

What dehumidifier do you have?

newbie1980

stephenliverpool1 wrote: »

Hi all,

For 17 years, I have had condensation probs in my bungalow.

I have a dehumidifier in centre of my bungalow, which helps. I will get mould on the ceiling of one of my bedrooms quite often. Other rooms are okay.

I had a load of hedges at the front of my bungalow but cleared them away a few months ago. This has helped my kitchen at the front of my bungalow as I would get mould and condensation probs on one the walls (at the front of my bungalow)l and ceiling but this appears to have gone.

I have just seen an advert on TV with regards condensation :

http://www.envirovent.com/home-ventilation/videos/tv-commercial/

Before I try them, I was wondering if anyone could provide some advise.

Thanks

i fit the envirovent efht2s model in bathrooms they look bulky but they run quietly all the time to help vent the rooms and run at a faster speed upon moisture detection ie/ shower running.
i find these amazing buit everyone has there own idea of things.
alot of housing assosiations now fit these

Furts

Are all your ceilings properly insulated? Or do you have a cold spot that is inadequately insulated directly above the mouldy ceiling?

stephenliverpool1

Furts wrote: »

Are all your ceilings properly insulated? Or do you have a cold spot that is inadequately insulated directly above the mouldy ceiling?

Walls and ceilings are fully and properly insulated.

stephenliverpool1

TheCyclingProgrammer wrote: »

Have you got a humidity monitor?

No I have not. Where can I get one please ?

TheCyclingProgrammer wrote: »

What humidity level is your house on average? The ideal range is 40-60%, depends on your house temperature though.

No idea as I don't have one but thanks.

TheCyclingProgrammer wrote: »

What dehumidifier do you have?

It is very old. Model number is 'WDH-101P' and I bought it in B&Q if I remember correctly. Does this make a difference ?

Thanks.

TheCyclingProgrammer

There are loads of hydrometers on Amazon averaging £5-10. I just bought this one:

https://www.amazon.co.uk/gp/aw/d/B01J7OH72S/ref=mp_s_a_1_9?ie=UTF8&qid=1478637301&sr=8-9&pi=AC_SX236_SY340_QL65&keywords=humidity+meter

It's possible your dehumidifier is not doing an effective job but really you need to check what your humidity levels are first. From there you can see what effect your dehumidifier is having and if it turns out your humidity isn't that high there may be another cause of the damp.

Chanes

Does it have cavity wall insulation? They used to pump a foam insulator into houses and it could cause problems with damp.

coffeehound

I guess the OP is particularly interested in the PIV units.

Where humidity is rising up through the floorboards which often seems to be the case with 50s bungalows, they would probably work well.

docmatt

Do you have concrete gutters/ what's the roof like?

Mr.Generous

have you cleaned the filter on your dehumidifier? They work much better when the gauze air filter is clean, they used to get returned to B&Q as faulty with a completely blocked filter, they just wash out in water.