How to seal sash parting bead

[Mmark]

We have very draughty newly installed windows. Supplier has agreed the gaps around the parting bead are too big. They will instead install larger parting beads, but they said they do not seal them.

I'm looking around and I cannot see any products that give a good seal all around the perimeter bead. Typically at best, it's just one one side. Has anyone seen good products, that might help?

I've attached a photo that shows what I think we should have. I've seen sone "DIY" versions of this, but just stick something in - I'm not sure it'll stay stuck... or will it?

 

[footprints]

You might find something here, but that's the age old problem with sash windows. UPVC ones do have seals but timber will tend to be a problem always as too little play will cause them to stick or be loose due to the humidity.

https://www.ironmongerydirect.co.uk...ical-sash-window-seals/filter/$s=window seals

 

[JohnD]

The furry pile strip will do the job. Some of it is like velvet for small gaps, or like a soft brush for bigger gaps. There is an adhesive type, and a type with a metal backing, and I see IronmongeryDirect have it on plastic strip. The pile easily squashes to fit the gap.

The adhesive type sticks well to clean paint that is fairly new. The metal backing type can be pinned in place on timber.

Not sold very widely because there are not so many vertical sliding sashes around.

I think I got mine on on Ebay from a supplier of glaziers sundries. I got a roll of it.

 

[Notch7]

you can buy parting bead and staff bead with the seal built in

try reddiseals or mighton

I cant see exactly from your pic what the issue is -can you elaborate or provide a pic

if they are newly supplied windows surely the manufacturer should be resolving.....

 

[troutybrown]

https://www.mightonproducts.com/pro...e/weatherstripping-beads/plastic-parting-bead

 

[Mmark]

you can buy parting bead and staff bead with the seal built in
try reddiseals or mighton
.

There are gaps on all three sides of the parting bead. Supplier has offered to make the parting bead bigger, to fill the gap. While the gap will be smaller, there will still be a gap.

I've seen the reddiseals and others. They put a strip on one side, which improves it, but it's not the same as ensuring all three sides are form a seal.

 

[Deleted member 174758]

If it starts out too tight two things will happen, firstly the next time the window is painted it will get painted shut, secondly in wet winter weather the swelling of the timber due to moisture in the atmosphere will jam the windows instead/as well. You are dealing with wood, not granite. Not saying that the gap can't be reduced, just that if it's removed completely there will be consequences