trickle vents
- Thread starter Bigtree
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I disagree. If Building Control want them you must, but if not do not. You fit a nice A rated window, then chop a hole in it so that air can flow freely?!
All modern windows have a 'night vent' so you can keep the window a little open securely. I would rely on this, as you can control it and close it on a freezing cold windy day.
All modern windows have a 'night vent' so you can keep the window a little open securely. I would rely on this, as you can control it and close it on a freezing cold windy day.
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I'm with Phatboy. Horrible things:
Drafty
Noisy
Dirty
Get full of spiders and flies
Technically when you put a trickle vent in an A rated window it is no longer A rated. In fact it wouldnt even pass as C rated in the tests and should be against regulations but its another regulation that makes you fit them
.
As its an extension you don't have much choice. You must either have trickle vents or another form of background ventilation.
Drafty
Noisy
Dirty
Get full of spiders and flies
Technically when you put a trickle vent in an A rated window it is no longer A rated. In fact it wouldnt even pass as C rated in the tests and should be against regulations but its another regulation that makes you fit them
.As its an extension you don't have much choice. You must either have trickle vents or another form of background ventilation.
When you say new windows into an extension is this a new build extension or an existing extension to which you are fitting new windows?
We did an extension 3 years ago with 2 new windows and lots of the others were replaced. We used T&T without trickle ventilation. Trickle ventilation causes lots of draughts and cold air dropping to the lower parts of the room and thus cooling of the walls. THIS will not help with damp / condensation on cold surfaces. There are studies out in the public domain that show that it is much more effective to open a window wide for 5min and allow a big exchange of the air volume but you will still maintain the heat in the brickwork. Do this a couple of times per day. Trickle vents are not good for large volume air exchange
Now all you need to do is convince your LABC of that!
Which part do you want me to convince them of?
BC signed the windows off. The inspector was quite critical of the trickle vents himself and said that they would last much longer in the UK and the UK would follow cont. Europe. Not required in the rest of the EU - but the UK know better.
BC signed the windows off. The inspector was quite critical of the trickle vents himself and said that they would last much longer in the UK and the UK would follow cont. Europe. Not required in the rest of the EU - but the UK know better.
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Trickle vents were initially brought in to allow background ventilation to prevent the build up of carbon Monoxide, not condensation, after the country had a spate of deaths through carbon monoxide poisoning. then it all went a bit silly in my opinion...never needed in every room!
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