Damp Upstairs Help !!!

Hi

I bought a new house 10 months ago and have had it on lease and my the guy renting has just told me now that there is loads of damp on the roof went to have a look and it is really bad. See pics below. Downstairs is ok. Could anyone tell me what issue might be roof??








This was not there the first 2 months that I had the house and when I bought it. I have got buildings insurance only on the property from sheilas wheels. will this cover the replacement for this?

Please advise !!

Faizal


I did a homebuyers reports which did not report any issues as well. I

That's bad M8 Is it not covered by some warranty scheme arranged by the builder such as through the NHBC? Worth checking. Can't comment on whether your insurance will cover that.

Someone will have to open it up and have a good nose around but it's not just the roof is it? There's evidence around the windows and on parts of the walls.

Check the gutters m8,then get the roof looked at,

If they are OK then its a condensation problem,so make sure there is plenty of ventilation and get them to use a dehumidifier,make sure to clean all the mould off using a proprietary cleaner or a mix of bleach and water,

Had to do this myself as I was getting the same thing,although not as bad,but that could be because I was constantly scrubbing it,dehumidifier sorted it for me in the end

What is NHBC?? Need to get a roof guy out tomorrow to have a look. When i bought it was all ok and had it for 2 months and did not see any damp the guy renting has been there 7 months and mention to me now !!! What could have happened in this time would it the previous owner patch up and paint job to cover it !!

https://www.nhbc.co.uk

TT

MH said:

https://www.nhbc.co.uk

TT

Click to expand...

looked at house document not covered by NHBC.

How much we looking at approx to replace all the damage to the and get rid of damp approx worse case scenario.

Looks like buildings insurance does not cover damp

Insurance should cover it if its due to missing tiles etc.

TT

Reading up its defo a condensation issue rather than a leak

I would be contacting the builder if I were you.

TT

The builder of the house ??

It was built in 1992

Ah, they way you were talking it was as if it was a new one.

If its condensation what changes have you made to the house so to minimise airflow?

TT

I aint lived in the house been on rent. There is nothing in the small ensuite just a little window which is the worst room. Need to get a dehumidifier in asap and then clean the mould with bleach and get someone into have a look as well

Sounds like what you need is a fan in there that is used when the shower is in use.

TT

Is the extractor fan working that's in the wall ?
Do the tenants isolate it an leave it off to keep room warm ?

I would as a first move put a more powerful extractor fan in with built in humidity sensor.

Is the problem only in the bathroom? Have you checked in the loft? you may find that the insulation could be soaked due to roof slates missing ect.

It's surface mildew, get some neat thin bleach (cheap Tesco stuff) a paint brush and stipple it into the mildew it will kill the spores off, wait until it dries and see if it is damp then, I deal with this sort of thing regularly, tenants think it's damp when really they never open windows after baths or showers, some even turn the fan off at the isolation switch 'cos it's noisy when I'm having a bath' make sure you wear protective gloves, goggles and open a window, leave the room now and then.

faisalpandu said:

Hi

I bought a new house 10 months ago and have had it on lease and my the guy renting has just told me now that there is loads of damp on the roof went to have a look and it is really bad. See pics below. Downstairs is ok. Could anyone tell me what issue might be roof??

View attachment 79536

View attachment 79537

View attachment 79538


This was not there the first 2 months that I had the house and when I bought it. I have got buildings insurance only on the property from sheilas wheels. will this cover the replacement for this?

Please advise !!

Faizal


I did a homebuyers reports which did not report any issues as well. I

Click to expand...

Do you mean "new build", or is it an older house just "new" to you ?
If it's "new build" there should be builders insurance, as mentioned above, it used to be for 10 years but may have changed.

If it's an older house, all that in 8 months suggests an underlying problem camouflaged by a decorating job just before you bought it.
A homebuyers report is often a "quick kick of the tyres" and may not spot this.

8 months is a long time for the tenant not to report it to you. Have you asked the tenant when it first became noticeable ?
That may give you a better idea of the cause (before or after this extreme rainy season).

Looking at the pictures, the patterns show it started on the external walls, and spread due to lack ventilation/heating, again as already mentioned.
I'd suggest a brushed on fungicide, or a quick spray with appropriate safety measures, to prevent further spread, before investigating.

Then look around outside, binoculars help, for likely causes. As said already blocked guttering, down pipes, drains, or even flashing, are a possibility.
With a least two external walls affected, it may be fairly obvious.

Another cause can be the "felt" underneath the tiles/slates slipping or damaged. lt should project beyond the tiles to drain the water into the gutters.
It goes against my instincts, but a professional roofer asap, is my opinion, at least for investigation.

Edit: A lot of posts, while I was typing, take your pick!:Biggrin2:

Looks like any water running off the roof is passing down the cavity, as already said you will probably need some Klober - Professional roofing accessories | Underlay Support Tray fitting to help support if there is any underlay. You roofer should be able to advise.

@faisalpandu

Varying opinions/options, as there should be! I know it's not your priority, but please keep us updated. Nothing worse than being left in limbo.