condensation problem

[wingers]

hi

I have a condensation issue in one room, getting wet patches at top of wall/coving

Recently had roof and gutter repaired so it is not a leak - also checked above and is dry - so definitely seems to be condensation

If I have window open in room then is okay - but window can't be left open (security) and it has no trickle vents I can open

As I live in bungalow and roof gets air - would fitting a vent in the ceiling help in same way as having windows open does??

 

[Pigeon85]

Condensation is attracted to a cold spot which usually is an outside wall, I don't know if a vent on the ceiling would be a good idea or not, it does sound reasonable to me though. I can advise keeping the door to that room shut when running a bath and cooking etc to minimise the problem maybe get a brick vent put in aswell easy to do that's if it's not a stone wall.

 

[JohnD]

//www.diynot.com/wiki/building:condensation_in_houses

How long ago was the gutter repaired? A wet wall takes a long time to dry out.

 

[deanibusmaximus]

This is very common. During the winter months i run a dehumidifier in my house and this has helped a great deal with this . see the link below for the model I have. It is one of the best things I have done for my house, and not as expensive on electric as one might think.

http://ecoair.org/DD122FW-Simple.html

 

[alan333]

I came across a weird condensation problem a while ago. It was one of those houses which was as hot as a sauna and there were condensation marks which looked like roof leaks at random small sections on the ceilings. It turned out that the loft insulation wasn't laid properly at each problem area and there were gaps. Perhaps worth checking?

 

[wingers]

//www.diynot.com/wiki/building:condensation_in_houses

How long ago was the gutter repaired? A wet wall takes a long time to dry out.

yes fair point, gutters only lined a few weeks ago, so really need a good hot summer then see how it is next year

 

[wingers]

I came across a weird condensation problem a while ago. It was one of those houses which was as hot as a sauna and there were condensation marks which looked like roof leaks at random small sections on the ceilings. It turned out that the loft insulation wasn't laid properly at each problem area and there were gaps. Perhaps worth checking?

good idea - will check that

 

[wingers]

This is very common. During the winter months i run a dehumidifier in my house and this has helped a great deal with this . see the link below for the model I have. It is one of the best things I have done for my house, and not as expensive on electric as one might think.

http://ecoair.org/DD122FW-Simple.html[/QUOTE]have already got a dehumidifier but haven't found it made much difference so far

 

[joe-90]

Bet it's still leaking. That's what roofs do.

 

[wingers]

Bet it's still leaking. That's what roofs do.

it's not leaking, hence why I mentioned dry in loft etc, only wet on top of wall inside

 

[joe-90]

Leaks don't always behave the way you think they will - they often originate elsewhere. Post a picture if you want accurate advice.

 

[wingers]

Leaks don't always behave the way you think they will - they often originate elsewhere. Post a picture if you want accurate advice.

doesn't how up well on photo (magnolia walls) - tried that earlier - basically wet patches at top of wall near ceiling/coving in corner of room, both external walls

 

[joe-90]

Condensation would be visible on the walls and tends to get spots of mould. I still think a leak is more likely. Often water will run down the tops of the rafters invisible from in the loft and then off the end into the cavity where your problem is. JohnD is an expert and knows tricks to proof condensation.

 

[wingers]

Condensation would be visible on the walls and tends to get spots of mould. I still think a leak is more likely. Often water will run down the tops of the rafters invisible from in the loft and then off the end into the cavity where your problem is. JohnD is an expert and knows tricks to proof condensation.

it is NOT a leak, I have spent enough time checking to know it is condensation and not a leak - it is wiped regularly, hence no black marks - and only happens during winter months, so unless it is a part time leak, then as I said it is condensation

 

[joe-90]

Well if you know all about it what the fook are you doing on here?