DIYnot
Local | Network
   DIYnot > Forums
Local | Network
DIYnot Network Local DIYnot Network Local  
  Forum IndexForum Index     RulesRules    HelpHelp     Join FREERegister Free     About CookiesCookies     SearchSearch     LoginLogin 

Sealing internal gaps between new plaster and windows


 
Post new topic   Reply to topic    DIYnot.com Forum Index > Windows and Doors
Search this topic :: View previous topic :: View next topic  
Author Message
diyiamnot

from United Kingdom

Joined: 17 Apr 2008
Posts: 26
Location: Bath,
United Kingdom

PostPosted: Fri Apr 25, 2008 7:51 am Reply with quote

I have just has new windows installed and the walls plastered. All looks good apart from a gap surrounding the windows and doors between the UPVC windows and new plaster.
The window guy tells me the plasterer should have plastered right up to the windows and the plasterer says the window installer should fill the gap with some cork material. Either way it looks like i am going to have to do it.
Could someone tell me the best method and product to use in this sitiuation. I believe it has to breathable???
Thanks
Back to top
 Alert Moderators

If you do not want to see this advert, click here to login or if you are new click here to join free.
chessspy

from United Kingdom

Joined: 23 Apr 2008
Posts: 483
Location: Kent,
United Kingdom
Thanked: 2 times

PostPosted: Fri Apr 25, 2008 8:01 am Reply with quote

Hi, diamnot,
You don't say if the gaps are small and regular, I wonder how this has happened? I agree with the installer (on the face of it).
I should think any of the propriety fillers would do, but consider decorators filler first, as it is slightly flexible. (when set)
I don't see any reson why it should be breathable.
I would check first there is no movement of the frames
Decorators filler comes in tubes and is applied with a gun.
Back to top
 Alert Moderators
diyiamnot

from United Kingdom

Joined: 17 Apr 2008
Posts: 26
Location: Bath,
United Kingdom

PostPosted: Fri Apr 25, 2008 8:28 am Reply with quote

They are normal size gaps, about 4-5mm. Does that make a difference?
Back to top
 Alert Moderators
chessspy

from United Kingdom

Joined: 23 Apr 2008
Posts: 483
Location: Kent,
United Kingdom
Thanked: 2 times

PostPosted: Fri Apr 25, 2008 8:47 am Reply with quote

No, that sounds ok to fill, probably just shrinkage
wait to see if any one else offers something before rushing off to B+Q. icon_lol.gif
Back to top
 Alert Moderators
diyiamnot

from United Kingdom

Joined: 17 Apr 2008
Posts: 26
Location: Bath,
United Kingdom

PostPosted: Fri Apr 25, 2008 8:49 am Reply with quote

Thats all sounds ok then..... but i am more of a wickes man myself!!!
Back to top
 Alert Moderators
Richard C

from United Kingdom

Joined: 26 Apr 2005
Posts: 10589
Location: United Kingdom
Thanked: 988 times

PostPosted: Fri Apr 25, 2008 9:27 am Reply with quote

diyiamnot wrote:

The window guy tells me the plasterer should have plastered right up to the windows

Yes he should have, why didnít he? I always use a stop bead against the frame it makes plastering the reveal a doddle & gives a nice straight line against the frame. Any shrinkage around the frame can be rectified by a bead of decorators caulk (donít use silicone as paint wont stick to it) but this doesnít usually happen for a few months & will only be a couple of mm at most, not 5mm!
diyiamnot wrote:

and the plasterer says the window installer should fill the gap with some cork material.

Thatís a total load of carp!
Back to top
 Alert Moderators
diyiamnot

from United Kingdom

Joined: 17 Apr 2008
Posts: 26
Location: Bath,
United Kingdom

PostPosted: Fri Apr 25, 2008 9:43 am Reply with quote

I think i should try and explain where the gap is ......

The gap is around the window and the wall. Imagine if you have a two squares one large and one small. Place the small square inside the large square and then you will have a gap around the outside. Basically my window was slightly smaller than the exsisting hole thus the gap.

Dont think in that sense it is as easy to fill the gap with plaster?
Back to top
 Alert Moderators
Richard C

from United Kingdom

Joined: 26 Apr 2005
Posts: 10589
Location: United Kingdom
Thanked: 988 times

PostPosted: Fri Apr 25, 2008 9:55 am Reply with quote

The window should be made to fit the outside brickwork with a 3-5mm gap not the internal plaster which can be up to 16mm thick! Packers are used either side of the fixing screws & if theyíve made the windows the correct size, all that should be needed on the outside is a bead of silicone to seal the frame. You should not be able to see a gap all around the frame on the inside, if you can, either the windows have been made too small or the plasterer didnít line the reveals before skimming, was the plaster completely removed on these?
Back to top
 Alert Moderators
chessspy

from United Kingdom

Joined: 23 Apr 2008
Posts: 483
Location: Kent,
United Kingdom
Thanked: 2 times

PostPosted: Fri Apr 25, 2008 10:08 am Reply with quote

Hi, All,
This starts to sound interesting, and there are various possibilities I didn't think of. icon_rolleyes.gif
obvious question, but have you looked at the window from the outside?
I know I suggested this before, but, picasa is good for posting pics, and a picture is worth a thousand words.
chessspy
Back to top
 Alert Moderators
diyiamnot

from United Kingdom

Joined: 17 Apr 2008
Posts: 26
Location: Bath,
United Kingdom

PostPosted: Fri Apr 25, 2008 10:16 am Reply with quote

The windows look great from the outside and fit nicely, with silicone sealant round the edge.

The plaster was not removed. The plasterer then skimmed over the top of the exisiting old plaster.

Whats the solution then? Get the plasterer to fill the gaps or get the window installer to fill the gaps?

Or for me to put some decorarters chaulk in the gap?
Back to top
 Alert Moderators
chessspy

from United Kingdom

Joined: 23 Apr 2008
Posts: 483
Location: Kent,
United Kingdom
Thanked: 2 times

PostPosted: Fri Apr 25, 2008 12:01 pm Reply with quote

My vote is to put it on to the plasterer, however if you get no joy,
I should think you could just caulk it. icon_eek.gif
If the windows fit well from the outside with a weatherproof sealant, then that should do the trick.
Back to top
 Alert Moderators
Richard C

from United Kingdom

Joined: 26 Apr 2005
Posts: 10589
Location: United Kingdom
Thanked: 988 times

PostPosted: Fri Apr 25, 2008 12:22 pm Reply with quote

diyiamnot wrote:
The windows look great from the outside and fit nicely, with silicone sealant round the edge.

The plaster was not removed. The plasterer then skimmed over the top of the exisiting old plaster.

Or for me to put some decorarters chaulk in the gap?

Well I'm at a loss to understand what's gone wrong without actually seeing it; when the old frames are removed, the new ones slot into the brickwork opening from the outside & will either butt up against or be very close to the edge of the original plaster; all that then may be required is to fill the gap with plaster/plaster based filler or apply a bead of caulk around the inside against the frame. The frame should always be below the level of the plaster inside & I canít visualise how you can have a gap you can see around the frame on the inside but not on the outside. One trick thatís used if the window has been made too small is to fill the gap with expanding foam & stick a UPVC trim (quadrant or D nose) around the outside of the frame with silicone, butted up against the brickwork to hide the gap. It looks OK for a while but it doesnít alter the fact that the window has been made too small for the opening & it may mean the frame is not very secure; makes a nice snug home for bugs, ants & other crepies to colonise though!

5mm is too much of a gap to fill with another skim (although I suppose he could skim it twice!) or fill with decorators caulk; it shrinks back & will always notice. I would stick some plasterboard around the reveal to take up the gap & re-plaster; do you have the same problem at the bottom or is a sill not yet fitted?
Back to top
 Alert Moderators
Search this topic :: View previous topic :: View next topic  
Post new topic   Reply to topic    DIYnot.com Forum Index > Windows and Doors All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Similar Topics   Replies   Views   Posted 
UPVC window frame and plaster gaps 6 160 Sun Jan 12, 2014 7:45 pm
Advice - double glazing - gaps between plaster & frame 4 1320 Mon Oct 27, 2008 11:23 pm
Sealing door after re plaster 3 320 Sun Apr 05, 2009 8:00 am
Filling internal gap between UPVC window and plaster 3 500 Sat Mar 10, 2012 11:58 am
Cleaning plaster/gunk on new upvc windows 3 680 Sun Dec 28, 2008 6:46 pm


 
DIYnot
Find an Expert | Find a Supplier | Search DIYnot.com
Network | Advertising | Newsletter
DIY | DIY How To | @home | DIY Wiki | DIY Forum
By using this site you agree to our Terms of Service / Disclaimer.
Please read our Privacy Policy. Copyright © 2000-2014 DIYnot Limited.