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Damp Proofing

Condensation in the loft - help please

Anonymous user 15/03/2024 - 2.54 PM

Condensation in the loft We currently have a bit of a problem with condensation in the loft, to the point where the felt is dripping wet into a bowl. the roof already has soffit vents and I've also installed these cheap vents that you slide into the felt - but they didn't make much of a difference, if any at all. Our stairs are in the kitchen, I'm concerned that this may be the problem. We have an extractor fan in the kitchen but we don't have an extractor hood over the oven - so quite a bit of steam from cooking goes straight up to the landing - I assume this will then go straight up into the loft. Would buying an extractor hood resolve the problem? The part of the loft that suffers the worst is the bit that's above the bathroom, and the bathroom is above our kitchen. Also where the loft suffers the worst - I've noticed a part of the felt is blocked by lots of crumbling cement (or something) - I didn't know if this was stopping ventilation? Is this something I should be concerned about? If it helps - there is also a small leak on the roof (the rafters get a bit wet) - but this is a separate problem, but I did wonder if it could contribute to the condensation? I'd be very grateful for any help and advice - and recommendations on who we should contact to sort this out.

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4 Answers

David Philip Interiors

Rating: 5 out of 5
Bourne
Condensation in the loft is not uncommon, i even get it in my 1 year old new build. As most lofts are cold air spaces meaning the insulation is on the loft floor and the air above is cold that means any warm air getting in to that area is liable to condensate. Any precautions you can take to prevent the build up of moisture in the air will help such as not drying clothes on radiators or using a dehumidifier. Installing an insulated loft hatch would also help prevent some unwanted moisture getting access to the loft space. There are breathable roof felts available now which are permeable and allow moisture to pass right through and out into the atmosphere but obviously that is an expensive option to re-felt the roof. Hope this helps
Answered22 February 2020
0

Pw roofing

Rating: 5 out of 5
Leeds
Hi there should be an air flow coming from your eaves by either a vented soffit or an over Facia vent which should flow up and out of your ridge tree with a vented ridge system.most older buildings don't have any ventilation you could try using tile vents to allow more air flow.
Answered22 February 2020
0

ADR Property Maintenance

Rating: 5 out of 5
Boston
an extractor fan vented externally to both the bathroom and kitchen would help
Answered22 February 2020
0

Midwales Stoves

Rating: 5 out of 5
Welshpool
It can be easily solved by cross ventilatilation. People talk about breathable felt but to do that you would need to strip the complete roof!!
Answered23 February 2020
0