My house is 10 years old and for a while the plyboard panels in the loft above our en suite bathroom have been black. There has been a recurring problem whereby the venting hose connected to the extractor fan keeps coming off letting all the hot air loose in the loft. I was in the loft today and noticed the boards were quite damp to touch and when i ran my finger down them my finger was black. I noticed the venting hose had again become unattached from the fan and could well have been like this for a while. I checked the main bathroom fan too and this was the same. I have reattached the hoses and used brown parcel tape to secure them and hopefully stop this recurring but am worried about the damp black panels. Will they dry out ok or should i be getting a roofer in to look at them?
Black mould on roof boards in loft
- Thread starter emmaamme
- Start date
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Ensuring that the fan ducting remains attached at all times is vital - introducing moist air into a loft is not a good idea!
By all means wipe the mould away, but the panels will dry on their own accord.
Ensure your loft has plenty of ventilation, too!
John
By all means wipe the mould away, but the panels will dry on their own accord.
Ensure your loft has plenty of ventilation, too!
John
A weak bleach and water mix would be fine. Don't worry about a mask. Parcel tape will fail too btw.
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it sounds like you need to comprehensively replace the poor-quality ducting arrangements. You probably need a rigid adaptor to connect to the fan, fastened so that it cannot move and its weight tends to push it into position rather than pull it away. You might do better with rigid ducting, fixed to the loft timbers to keep them in place. Flop loft insulation over the ducts to prevent condensation. It is possible that condensed water in the hose might have added weight to pull it out of place.
there may be some suitable parts here http://www.screwfix.com/search.do?f...m=&priceTo=&priceFilterOn=&_requestid=1505527
Can you post some pics? //www.diynot.com/forums/viewtopic.php?t=129539
there may be some suitable parts here http://www.screwfix.com/search.do?f...m=&priceTo=&priceFilterOn=&_requestid=1505527
Can you post some pics? //www.diynot.com/forums/viewtopic.php?t=129539
I'm a complete diy novice so was hoping to keep it simple by using parcel tape rather than having to replace parts. My Dad just mentioned gaffa tape and when i googled it duct tape came up, would this be better?
The adaptor you mentioned John, how does it work? Does it attach to end of hose and then goes into fan to hold it in place?
Pic 1 shows the area above en suite. Hose vents out to grill outside under eaves.
Pic 2 shows panel to left
Pic 3 shows panel above pic 1
Pic 4 shows area above main bathroom (not as bad as rarely used)
The adaptor you mentioned John, how does it work? Does it attach to end of hose and then goes into fan to hold it in place?
Pic 1 shows the area above en suite. Hose vents out to grill outside under eaves.
If thats the entire length of ducting that we can see Emma then its a short run and should be fine....however, for some reason the clip that holds the trunking to the fan outlet seems to be missing!
A replacement could be a 'jubilee' clip (google?) or failing that a strong cable tie.
Duct tape (gaffa tape) is much better than wrapping stuff....cloth backed and sticky as hell etc.
There sure has been some amount of condensation up there.....what sort of roof covering do you have.....slate / tile / felt etc?
John
A replacement could be a 'jubilee' clip (google?) or failing that a strong cable tie.
Duct tape (gaffa tape) is much better than wrapping stuff....cloth backed and sticky as hell etc.
There sure has been some amount of condensation up there.....what sort of roof covering do you have.....slate / tile / felt etc?
John
I think the hose is too short, that might be why it's pulling out.
this adaptor http://www.screwfix.com/p/manrose-round-connector-100mm/12697 might secure it better.
when I bought a mew tumble drier last week, it came with a huge jubilee clip to grip thr hose to the adaptor.
this adaptor http://www.screwfix.com/p/manrose-round-connector-100mm/12697 might secure it better.
when I bought a mew tumble drier last week, it came with a huge jubilee clip to grip thr hose to the adaptor.
Yes both hoses just drop down beyond where you can see in photos and lead out to the grills outside.
Ah, so you're saying there should be a clip attaching the hoses to the fans. I did wonder whether about this as there is nothing on either hose at all. A jubilee clip sounds a good idea. Is the hosing usually a standard size? (Just wondering what size clip to get).
The roof is tiled - just the modern red tiles (house 10 yrs old). This problem has been ongoing since 9.5 yrs ago when we got mould on the ensuite ceiling and thought the builder had forgotten to attach the hosing. We reattached it and just assumed it would be ok so hadn't really checked it since then. (Mores the pity!)
Ah, so you're saying there should be a clip attaching the hoses to the fans. I did wonder whether about this as there is nothing on either hose at all. A jubilee clip sounds a good idea. Is the hosing usually a standard size? (Just wondering what size clip to get).
The roof is tiled - just the modern red tiles (house 10 yrs old). This problem has been ongoing since 9.5 yrs ago when we got mould on the ensuite ceiling and thought the builder had forgotten to attach the hosing. We reattached it and just assumed it would be ok so hadn't really checked it since then. (Mores the pity!)
If you cant get a clip of the correct size, smaller ones can be threaded together......they're often called worm drive or hose clips, depending on where you buy.
John
John
found it
http://www.tlc-direct.co.uk/Products/FD4CLIP.html
more accessories at the bottom of the page
http://www.tlc-direct.co.uk/Products/ADICON15.html
http://www.tlc-direct.co.uk/Products/FD4CLIP.html
more accessories at the bottom of the page
http://www.tlc-direct.co.uk/Products/ADICON15.html
Thanks John, before i saw your post i've ordered the following from B&Q
http://www.diy.com/nav/fix/plumbing...mbSure-Hose-Clip-2Pk-11478076?skuId=11988783#
states it fits 90-120 mm so hoping it will do the job. Thanks for all your help. Much appreciated.
http://www.diy.com/nav/fix/plumbing...mbSure-Hose-Clip-2Pk-11478076?skuId=11988783#
states it fits 90-120 mm so hoping it will do the job. Thanks for all your help. Much appreciated.
Well I'd just put on the hose clips and put my mind at rest when i got an email from my Dad saying he's been told that a better idea is a big tie-wrap as apparently the hose clips can burst the hose if you're not careful about how tight you do it up!
They seemed fine as i put them on and tightened them so am I safe to assume it won't rip now I wonder?
They seemed fine as i put them on and tightened them so am I safe to assume it won't rip now I wonder?
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