Internorm KF520

[Johnnyire]

We are thinking of going with Internorm KF 520 windows, has anyone pics of them installed? We saw them in a showroom and they looked great however I would like to see how thick the frame is, can it be hidden in the cavity? Also I have one massvie windows so will be two sections, id love to see how the frame will look at the joint? Thanks

[Russell griffiths]

If you are having a joint, get a detailed drawing of how they join them. 
we have two windows that join and they have a joining strip that fits into a routered out channel in both windows, loads of sealer applied and screwed together. 
 

a friend had a similar thing fitted and he could actually see through the gap between the two windows, no method of sealing at all just a couple of screws 🤬. 

[Johnnyire]

Thanks Russell, I will email them now to confirm. Do you have the KF 520 window?

[Russell griffiths]

11 hours ago, Johnnyire said:

Thanks Russell, I will email them now to confirm. Do you have the KF 520 window?

No norrsken 

[Benpointer]

16 hours ago, Russell griffiths said:

If you are having a joint, get a detailed drawing of how they join them. 
we have two windows that join and they have a joining strip that fits into a routered out channel in both windows, loads of sealer applied and screwed together. 
 

a friend had a similar thing fitted and he could actually see through the gap between the two windows, no method of sealing at all just a couple of screws 🤬. 

I wasn't aware this was that sort of forum. 😉

[Russell griffiths]

1 hour ago, Benpointer said:

I wasn't aware this was that sort of forum. 😉

By the time you are near to finishing your build you probably wish you had a crack pipe. 

[Mr Blobby]

On 16/11/2024 at 10:50, Johnnyire said:

Also I have one massvie windows so will be two sections, id love to see how the frame will look at the joint? Thanks

 

We have internorm KF410 windows with one large window in two sections, one fixed and one opening.

 

This coupling is actually very good. 

 

 

 

It is invisible from the front of the window and our fitters actually fitted it correctly (although I am a little concerned it sticks out at the top) unlike our very expensive internorm entrance door to sidelights junction that is a very different design and fitted very badly.

 

You big windows will be supplied without the glazing units installed.  For the installation of the glazing units into the frame Internom supply a sealant type stuff, fix-o-round to be applied around the perimeter to supposedly improve stability and sound reduction/airtightness.  Our fitters didn't use it (they used packers) hence we have a box of fix-o-round on site.  Fitters claim the fix-o-round isnt necessary but I suspect they just couldn't be arsed.

 

 

Edited Sunday at 19:03 by Mr Blobby

[jamiehamy]

2 hours ago, Mr Blobby said:

 

We have internorm KF410 windows with one large window in two sections, one fixed and one opening.

 

This coupling is actually very good. 

 

 

 

It is invisible from the front of the window and our fitters actually fitted it correctly (although I am a little concerned it sticks out at the top) unlike our very expensive internorm entrance door to sidelights junction that is a very different design and fitted very badly.

 

You big windows will be supplied without the glazing units installed.  For the installation of the glazing units into the frame Internom supply a sealant type stuff, fix-o-round to be applied around the perimeter to supposedly improve stability and sound reduction/airtightness.  Our fitters didn't use it (they used packers) hence we have a box of fix-o-round on site.  Fitters claim the fix-o-round isnt necessary but I suspect they just couldn't be arsed.

 

 

We have the 410 in our current build and have two large units joined using same detail, works well, no fuss. The strip can be trimmed at the top with a multi cutter btw.

 

 

[IanR]

On 16/11/2024 at 10:50, Johnnyire said:

We are thinking of going with Internorm KF 520 windows, has anyone pics of them installed? We saw them in a showroom and they looked great however I would like to see how thick the frame is, can it be hidden in the cavity? 

 

I've got the KF410 Studio from 2017 in my Utility and Boot room, which looks to be halfway between the current KF520 and KF410 versions.

For an opening sash, there's not enough frame on the inboard side to cover any more than around 5mm of the frame, before you'd be stopping the inward opening sash from being able to open. So, internally you'll be seeing nearly all the frame.

 

Externally, you can cover the sides and top of the alu-clad frame with your cladding/render board, but not the bottom.

 

On the sketch below the blue block at the bottom comes on the window and I've shown the internal cill level with the bottom of the frame, and the pink is a folded external cill. The hatched area is supposed to show cladding on the side of the rebate covering some of the frame.

 

 

Edited to add:
I have alu-clad timber across the rest of the house and while I'm very happy with them, if/when I do it again I'll think seriously about saving the money and going UPVC through out. The KF410 is a really solid, stable, well built window.

Edited Monday at 12:57 by IanR

[Johnnyire]

On 17/11/2024 at 18:44, Mr Blobby said:

 

We have internorm KF410 windows with one large window in two sections, one fixed and one opening.

 

This coupling is actually very good. 

 

 

 

It is invisible from the front of the window and our fitters actually fitted it correctly (although I am a little concerned it sticks out at the top) unlike our very expensive internorm entrance door to sidelights junction that is a very different design and fitted very badly.

 

You big windows will be supplied without the glazing units installed.  For the installation of the glazing units into the frame Internom supply a sealant type stuff, fix-o-round to be applied around the perimeter to supposedly improve stability and sound reduction/airtightness.  Our fitters didn't use it (they used packers) hence we have a box of fix-o-round on site.  Fitters claim the fix-o-round isnt necessary but I suspect they just couldn't be arsed.

 

 

Thanks I will query this sealant when the time comes, or even better before I place our order. I have priced around and Internorm are competitive with alot of other brands who supply polish windows. 

 

I haven't seen any pics of the KF520 installed, we only saw it in the show room and when I have asked the agent for pics they struggled to get any from installs. I don't think many get this window, I am based in Ireland so might ask UK suppliers for pics.

Edited Monday at 20:12 by Johnnyire

[Johnnyire]

7 hours ago, IanR said:

 

I've got the KF410 Studio from 2017 in my Utility and Boot room, which looks to be halfway between the current KF520 and KF410 versions.

For an opening sash, there's not enough frame on the inboard side to cover any more than around 5mm of the frame, before you'd be stopping the inward opening sash from being able to open. So, internally you'll be seeing nearly all the frame.

 

Externally, you can cover the sides and top of the alu-clad frame with your cladding/render board, but not the bottom.

 

On the sketch below the blue block at the bottom comes on the window and I've shown the internal cill level with the bottom of the frame, and the pink is a folded external cill. The hatched area is supposed to show cladding on the side of the rebate covering some of the frame.

 

 

Edited to add:
I have alu-clad timber across the rest of the house and while I'm very happy with them, if/when I do it again I'll think seriously about saving the money and going UPVC through out. The KF410 is a really solid, stable, well built window.

Thanks for this, they do seem like a really good window. I have read about alot of install issues in the UK, I am based in Ireland so hopefully that is not the case here. 

 

Good to know about the sides and top, thats what I was hoping. My only concern is my big windows will have 105mm + 105mm side by side so it will be thick as shown in my pic attached.

[Mr Blobby]

On 18/11/2024 at 19:57, Johnnyire said:

 

Good to know about the sides and top, thats what I was hoping. My only concern is my big windows will have 105mm + 105mm side by side so it will be thick as shown in my pic attached.

 

If you are worried about frame width, then why the horizontal mullion?  Get rid of it. 

 

Many suppliers don't do a full height opening window, hence the horizontal in your image. Did this come from another supplier?

Internorm are one of the few supliers that can do a full height opener, thats what we have and one of the reasons for using internorm.  Looks much cleaner.  I'll try and post a picture later.