Kitchen Extract Letting Rain In

Joined
3 Mar 2019
Messages
162
Reaction score
25
Location
Scotland
Country
United Kingdom
I have a kitchen extract fan in the ceiling that's ducted to exit via the roof and when I was in the loft, I noticed rainwater running down the outside of the duct. It hasn't touched the ceiling yet but the wooden board holding the extractor fan is completely rotten.

I called the factor and they arranged for their contractor to go up and have a look and they sent me some pictures (attached below). Looking at the pictures, my untrained DIY opinion is that part of the flashing has somehow ended up at the top of the duct, creating that gap at the bottom allowing water to run in. Pushing that metal disc bit back down and silicone it in place would be sufficient to keep the rain out.

The contractor has told me that what has installed is old and not in use anymore. He has quoted to remove the existing ducting and replace it with a 4" UPVC pipe and macflash roof flashing.

Is this the proper way to do it or is it unnecessary work?

20190730_100258.jpg 20190730_100306.jpg 20190730_100315.jpg 20190730_100607.jpg 20190730_101338.jpg 20190730_101407.jpg

P.S. the insulation is on the to-do list, whomever renovated the flat prior to me purchasing it was an utter cowboy and I've spent the last 8 months fixing his mess. Don't know whey they felt the need to remove all of it and pile it in a messy stack.
 
Last edited:
Sponsored Links
Thanks, figured I'd check just in case I was getting quoted for unnecessary work. That's another £300 gone, these repairs are starting to tally up.

Out of interest, why is a smaller diameter and plastic duct the way its done now?
 
Sponsored Links
or fit the weathering collar properly ....currently hanging from the cowl
That's the bit I thought needed fitted properly and siliconed in. I'm assuming the wind dislodged it. I'd give it a try myself but 4 storey tenement building and no anchor point, don't fancy my chances.

So should I find a contractor that'll fit the weathering collar properly or just get the whole thing replaced?
 
tbh honest it looks like a boiler flu has been used. f its really tricky to access then change it to a mushroom cowl.collar ,and an off cut of above ground pipe...and a new lead slate

otherwise refit the collar
 
The guy who renovated the flat before I bought it was an utter cowboy so not surprised to hear it's bodged. Just another fix to be added to the list :(

The existing duct is relatively accessible via a skylight but just dangerous cause it's 5 floors up (4 floors and a loftspace) and no anchor point that I can see. Roof work is definitely out of my DIY capability and comfort zone, guess I'll just shell out the cash and get it done properly so I can stop worrying about it. There goes my disposable income for another month.
 
Last edited:

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Back
Top