These modern cavity closers are a woeful piece of modern kit...making the fixing of windows and doors within masonry openings susceptible to poor/loose installation. I got my local BCO to agree on the old way of closing the cavities in my new extension by closing the cavities with block work...a lot better.
Thanks Sam, I’m a retired chippy and want to increase size of our windows and wondered these days how a cavity is closed off, have seen others on here who haven’t bothered, but great job Sam will be following your example and also subscribed
Hi Sam came across your video on how to do it as never done this b4 plus im then installing my own windows. your video was really good and taught me what i needed to do. I will be fixing it with gorilla glue to hold the cavity closures in place i hope that is enough to secure it
I have these on my build but some tradespeople have raised concerns. Usually, the vertical dpc covers the small gap between the block work and window frame. With these, what stops damp travelling from the external render to the internal plaster through the gap between the cavity closer and the window frame? Thanks
Hi des, well for one the window is sealed so no water should be coming in, 2 there is a cavity so moisture won’t cross. If any moisture is tracking across the plastic you have a problem, the closer is to stop a cold spot forming as the closer is insulated .
What do you do when blocklayer has left out the bottom block on the outer leaf for window cill to sit in. Do you have to cut a piece out of the bottom of the cavity closer to allow the cill to slot in?
Great video, thank you. I’ve come across a job where the windows are installed but no vertical dpc or cavity closers and they have mould spots on reveals. Is it ok to retrofit cavity closers after the window has been fitted? Will be really disruptive to remove window frames.. Thanks again for the great videos
Jonathan Hamilton you can look at retro fitting a cavity closer but if there is enough thickness on the window frame you can fix a 22mm insulated plasterboard and skim it to blend in.
just had new windows fitted and it appears theres a fair bit of a draft coming from underneath the window in. Should i insist that they make sure this is attended to before signing off on the job and, if so, what should they be using to do this? also, as i did not know of this capping product prior to them fitting the windows...and the house was built to heck knows what standards back in the 1840s for one half and the 1990s for the modern extension, i now have some voids to 'backfill' (mostly the new part of the house) at the point the cavity has been exposed owing to the depth of the new windows being thinner than the original old wooden ones. I have also been left with gaps around the interior edges of the windows behind the sealent thats been used round the exterior edges of the windows. Whats the recomendation to fill these? I take it i wouldn't want to use anything solid like 'gobbo' where the cavity is concerned....expanding foam...any particular type? Good vid by the way!
Hi I'm looking to change my old aluminium windows on a old home. What would be the required steps to make sure cavity is sealed before fitting new windows on these old houses?? Would you recommend installing cavity closers or insulation foam around the window cavity before fitting or is there another procedure? Hope you can guide me in the right direction. Thanks
These modern cavity closers are a woeful piece of modern kit...making the fixing of windows and doors within masonry openings susceptible to poor/loose installation. I got my local BCO to agree on the old way of closing the cavities in my new extension by closing the cavities with block work...a lot better.
Thanks Sam, I’m a retired chippy and want to increase size of our windows and wondered these days how a cavity is closed off, have seen others on here who haven’t bothered, but great job Sam will be following your example and also subscribed
No probs Phill thanks for watching
Living in Ireland cool hope you are enjoying the country great video 👍
Thank you 🙏
This is exactly what I wanted. Nice one.
Great stuff
Hi Sam came across your video on how to do it as never done this b4 plus im then installing my own windows. your video was really good and taught me what i needed to do. I will be fixing it with gorilla glue to hold the cavity closures in place i hope that is enough to secure it
Yes nice one, if the block or brick is straight the closer should sit well on them and stay in place
Thanks for that . Really learned something . SORRY ABOUT THE NEST .
you are fkn brilliant my man!! i am rolling.
👀 looks lovely... spot on 👍 hope you an family are well...
Hi Sam. About to have a new roof. Should I be using cavity closers at top of the house?
I would need more info to make a call
I have these on my build but some tradespeople have raised concerns. Usually, the vertical dpc covers the small gap between the block work and window frame. With these, what stops damp travelling from the external render to the internal plaster through the gap between the cavity closer and the window frame? Thanks
Hi des, well for one the window is sealed so no water should be coming in, 2 there is a cavity so moisture won’t cross. If any moisture is tracking across the plastic you have a problem, the closer is to stop a cold spot forming as the closer is insulated .
Silicon
Great video. What size was the cavity ?
Ooo ask mi one on sport, I think the closer was for 100mm
nice job,do you still need to run a length of DPC down the window reviel were the cavity closers go,,cheers
newry123 no there should be a cavity tray above the window and the closers are plastic so act like a membrane if fitted correctly
@@dampsam thanks
No need for dpc the closure does the job
Looking all good mate 👍
Do you put cavity closers on the bottom cavity for a door
I did
Fit the sides first mate then the bottom that way any water ingress will flow down the cavity and not spread out towards the inner leaf?
That good advice 👌
What do you do when blocklayer has left out the bottom block on the outer leaf for window cill to sit in. Do you have to cut a piece out of the bottom of the cavity closer to allow the cill to slot in?
Micheal Farrell I would need to see the job to make a call on that.
Also - just thought - normally a plasterer would dot n dab the board onto the reveal. What would they use in this case?
Jonathan Hamilton it’s down to preference, nothing wrong with using drywall if it’s not too thick
Great video, thank you. I’ve come across a job where the windows are installed but no vertical dpc or cavity closers and they have mould spots on reveals. Is it ok to retrofit cavity closers after the window has been fitted? Will be really disruptive to remove window frames.. Thanks again for the great videos
Jonathan Hamilton you can look at retro fitting a cavity closer but if there is enough thickness on the window frame you can fix a 22mm insulated plasterboard and skim it to blend in.
What did you use to fix them. As I need to fit some and my closer says to use clout nails??
Neil Divall yes that’s what I used
How do you go on if cavity is less or larger than 100mm??
Paul Perrin you can buy different sizes and they can be altered manually
just had new windows fitted and it appears theres a fair bit of a draft coming from underneath the window in.
Should i insist that they make sure this is attended to before signing off on the job and, if so, what should they be using to do this?
also, as i did not know of this capping product prior to them fitting the windows...and the house was built to heck knows what standards back in the 1840s for one half and the 1990s for the modern extension, i now have some voids to 'backfill' (mostly the new part of the house) at the point the cavity has been exposed owing to the depth of the new windows being thinner than the original old wooden ones.
I have also been left with gaps around the interior edges of the windows behind the sealent thats been used round the exterior edges of the windows.
Whats the recomendation to fill these?
I take it i wouldn't want to use anything solid like 'gobbo' where the cavity is concerned....expanding foam...any particular type?
Good vid by the way!
If your not happy you need to speak with the installers.
Without seeing the job I can’t really give any advise
@@dampsam fairy snuff...will do.
Hi
I'm looking to change my old aluminium windows on a old home.
What would be the required steps to make sure cavity is sealed before fitting new windows on these old houses??
Would you recommend installing cavity closers or insulation foam around the window cavity before fitting or is there another procedure?
Hope you can guide me in the right direction.
Thanks
Do it justice and put some decent quality windows and doors in.
What type of hammer is that 👀
Weight forward I think or it could be the lath hammer
What are the black things on the block work
ozzyefc44 it tape marking out the units for our kitchen
Simon Cooper HNC CSRT CSSW thanks Simon 👍
they didnt do this in my house so its ended up being a drafty house.
Oh dear , that’s a shame
Painful to watch!
Thankyou, none taken 😉