Ventilation ducting in loft detached from roof vent

[Donnie Spurs]

Hi there,

I wonder if anyone can help. I've just moved into a new build property and on inspection of the loft, noticed the ventilation pipes / ducting from the downstairs and upstairs bathrooms have detached from the two exit vents in the roof. As you can see in the pictures, the black hanging pipe is actually too short to reach the exit vent, so it has been left hanging and dripping. The pile of insulated ducting was attached to a black tube via gaffer tape but has also detached.

I've since bought some new insulated ducting, but I don't know how I should attach it to the exit vents because they seem to be some kind of oval shape which I can't find anywhere on screwfix etc. Does anyone know what I can do? the exit vents are 11cm x 9cm

Thanks a lot,

Don

 

[bernardgreen]

I've just moved into a new build property

Get the developer / builder to come back and finish the work they have yet to complete to a satisfactory standard.

 

[Donnie Spurs]

Thanks Bernard, I did contact them but as the homes are a few years old they said they only cover structural problems...

 

[flameport]

but I don't know how I should attach it to the exit vents because they seem to be some kind of oval shape

You need the specific adaptor for that type of vent. There are many different types.
However you already have the adaptors - they are the black flexible pipes.

Adaptors fix to the vents in the roof, your flexible ducting connects to the adaptors.

 

[Donnie Spurs]

Thanks flameport, I wasn't sure about those adaptors because they were a slightly different shape and as they'd fallen off I thought they might be a bodge job. I'll give them a go anyway maybe they weren't tightened up enough. In regards to attaching the ducting to the adaptor, the previous person just wrapped loads of gaffer tape around it, is that still the best option?

Don

 

[JimCrow]

A couple of self tapping screws first then the tape.

 

[Donnie Spurs]

Fantastic thanks guys ill give it a shot

 

[Donnie Spurs]

Hello again, i'm still having problems with this soil pipe I hope someone can help. The grey pipe is too short so I need some kind of sealed part to extend it which can fit into the black extendable connector. I have no idea what to buy anymore. The black connector has jubilee clips on both ends. Thanks.

 

[Madrab]

https://www.screwfix.com/p/floplast-sp8g-soil-pipe-single-socket-grey-110mm-x-1m/27141

 

[Donnie Spurs]

Thanks madrab, so I cut that to size then literally push it on the end of the other pipe and it will remain watertight? Also how far do I push it on, just enough for it to be secure?

Don

 

[Ian H]

As far as you can, about 75mm until it stops. A bit of lubrication will help.

 

[Donnie Spurs]

Great thanks Ian, appreciate your help.

Don