Part F building control notification

[Aaron b]

Hello, I understand that from the 15th of June testing and commissioning of vents and fans is now compulsory and that also since last year any works regarding fans needs to be notified to building control under part F.
I assume that this can be done as a NAPIT contractor registered with EAS. I've had a look through napits Ventilation Certificate, the details in appendix C of part F and the Domestic Ventilation Compliance Guide and the commissioning seems overly onerous and requires specialist equipment. Is anyone here doing part F notifications, commissioning or the full ventilation survey that appears to be required? I'm either thinking of blaming the plumber or offering it as a separate service...

 

[JBW175]

I assume there will be a fee involved in notification?

Probably, they have us for everything else.

 

[mainline]

It's not shower water it's condensed water from the shower extract steam.

You will be resuscitating all sorts of little nasties including dead skin

 

[MJPD29]

I'v ducted the shower ceiling fan into the top of the cold water tank, seems a waste to vent it to air through the roof.

Surely not Mike

 

[mainline]

Surely not Mike

One thing good to come out of this is someone will know what to get mike for Christmas next year.

Manrose Flap Vent Brown x

Order online at Screwfix.com. PVC. Suitable for commercial and domestic use. Suitable for use with 100mm round and 110 x 54mm rectangular ducting. FREE next day delivery available, free collection in 5 minutes.

www.screwfix.com

 

[Mike Johnson]

You will be resuscitating all sorts of little nasties including dead skin

Do you mean that dead skin you breath in all night in the bedroom after exfoliating your body by undressing in the room.

 

[JBW175]

I just think it’s dirty and unhygienic venting a fan into a water supply.

There shouldn’t need to be a reg against it, as common sense should tell you it’s a no no.

 

[Mike Johnson]

My take on all of this, is that it is a shower fan and the condensed water that goes into the water tank is probably less contaminated than the water supply into it, we have private water main over a mile long, run in metal barrel and whenever the water board work on the six inch fire main beyond our supply the water is very brown for some time and I have to clean all the cistern inlet valves, such is living in a rural environment.

 

[mainline]

My take on all of this, is that it is a shower fan and the condensed water that goes into the water tank is probably less contaminated than the water supply into it, we have private water main over a mile long, run in metal barrel and whenever the water board work on the six inch fire main beyond our supply the water is very brown for some time and I have to clean all the cistern inlet valves, such is living in a rural environment.

And because of this, you think It's OK to add to it ?.


Bit of a write up.

It's the kind of thing you might do for a few days while waiting for the system to be finished, but as a 'temporary' solution for three or four cold/cool months it is definitely not sounding like a good idea.

The fan shifts air (which happens to have water vapour in it), it shifts massively more air than it does water. The tank upstairs can't be sealed because the air needs to get out somehow, if the air gets out then so will the moisture that it's carrying. When that warm moist air gets into your attic, the water will condense out on the coldest surfaces, making them damp.
In cold weather I suspect a fair bit of the moisture in the extracted air will actually condense out in the tank, but a lot will pass into the attic with the air, how much of a problem that causes will depend on the temperature of the attic, the volume of the attic and crucially how well ventilated it is. I suspect in most situations no lasting damage is likely to result after a few months but if you store anything of value up there that isn't sealed then the dampness could affect it (mould, corrosion), in an old house with old timbers then dampness might revive old long forgotten fungal spores or encourage wood eating beetle to settle or spread in the spring (they like timbers in a certain moisture range), who knows.

Anyone who has run a dehumidifier in a bathroom will know there can be several pints of water in that air, so even if the tank condenses out 75% of the moisture (very optimistically) there's plenty left; you wouldn't by choice chuck half a pint of water (probably more) into your attic every time you have a bath or shower.

 

[Mike Johnson]

Wow that really is clutching at straws to prove you premies that I am doing something wrong, as you do to most of my posts, even at one point you put a follow tag on my posts so you could comment even more, then denied it, the proof of the pudding so to speak is that its been in this configuration for over thirty years and no roof problems have ever been encountered, no mound, no condensation and no infestation, can you say the same for something you have installed has lasted that long without a problem?

 

[Dustydazzler]

Perhaps only Part F Approved Contractors should be allowed to Install fans ?
I am sure one of the Scams would love to start charhing its DI an extra few hundred quid a year to add PartF to their PartP DI status

 

[mainline]

Wow that really is clutching at straws to prove you premies that I am doing something wrong, as you do to most of my posts, even at one point you put a follow tag on my posts so you could comment even more, then denied it, the proof of the pudding so to speak is that its been in this configuration for over thirty years and no roof problems have ever been encountered, no mound, no condensation and no infestation, can you say the same for something you have installed has lasted that long without a problem?

My New Year’s resolution is to try not to get into arguments especially ones that are pointless.
Jobs a good un Mike

 

[littlespark]

My New Year’s resolution is to try not to get into arguments especially ones that are pointless.
Jobs a good un Mike

No it’s not

 

[mainline]

No it’s not

I know

 

[Mike Johnson]

 

[Aaron b]

Wow that really is clutching at straws to prove you premies that I am doing something wrong, as you do to most of my posts, even at one point you put a follow tag on my posts so you could comment even more, then denied it, the proof of the pudding so to speak is that its been in this configuration for over thirty years and no roof problems have ever been encountered, no mound, no condensation and no infestation, can you say the same for something you have installed has lasted that long without a problem?

I'm not sure you comments are genuine or if your joking so apologies if I suck the fun out of it. Bylaw 30 used to cover header tanks but that was replaced by the water fitting regulations in 1999. A fitting lid is a feature of bylaw 30 kits, it's to stop ingress and excessive water vapour escape. As a novel idea/approach I see it's actually quite a clever idea, perhaps only for grey water though.