Position of Glazing beads

[lynx]

Just been out to have a look at a job for doors and windows.
Builders section details show the glazing beads to the outside.

When i made my patio doors, I machined these so the glazing beads where on the inside. Better for security, weather proofing etc so why do people draw these up on the outside.

How do you do yours??

[dom]

Inside surely.

[engineerone]

seem to remember most garden sheds have them outside, but like dom, seems to me inside is much more sensible, especially these days for security.

on doors i would think it has to be on the side that hits the jam to ensure safety.

paul

[jfc]

When i used to buy doors and windows they where always beaded from the outside but now i make them i always bead them from the inside . I make the fixed bead on the outside angled to look like putty and then make an ovolo mould for the pinned bead on the inside so there is still the traditional look to the window .

[andy king]

Traditionally, beading is to the outside to allow the rebates to do their job properly - any water penetrating behind the bead has to wick uphill to get in. Capilliary action can do this, but with a rebate internally, any breach can allow far more water in.
This is relevant more on glass bedded in on putty which can break down.
Nowadays, with the need for security it's often the case the beads are internal (uPVC windows used to be a doddle to get into with external beading) and bedded on silicone they have better water integrity and less likely to leak.

Andy

[Keith]

As far as I know all the security issues with internal/external beading came from UPVC windows which were easy to de-glaze.

However with wooden windows it is a complete blind. I do quite a few double glazing relacements due to misting and I can say that it is always damned hard/impossible to get the glass out. If anything it is more difficult with external beading as you can't push the glass in to break the seal.

[Telos]

Bead on the inside with a ventilated bead at the bottom on the outside as well. Yup, you then have five beads, but that's preferable to drilling vent holes through the bottom of the window If you only bead internally with no venting, you have a high chance of the unit failing by misting up.

[dom]

As has been mentioned, traditional or not, there is no way I would put loose beads on the outside of a window.
The security issues are scary.

[jake]

But the glazing tape is ferociously sticky...

[woodworker]

As Andy mentioned, the beads traditionally always went on the outside to allow the rebate to do it's job properly. Many a good door has gone by the wayside before it's time due to beads on the inside.

We still always put the beads on the outside, the glass is secured with security tape, boy does it stick . (We've never managed to get one out yet) It's easier/quicker to break the glass than try & pry the glass out imho.

[jfc]

If you bed the beads in with silicone how can the rebate "do its job"

[tim]

I had been told that if the beads are on the inside, its much easier to gain access since one could effectively push the unit out whereas with the beading on the outside the glass still can't be easily removed even if the beads are off (assuming that they have been siliconed or taped in)

Cheers

Tim

[chill]

Hi iirc when i used to service upvc windows :-[if you sprayed wd40 around the security tape the foam would dissolve allowing removal of the unit a bit messy but saves glass shards all over the place. In my house the numpty builder has badly siliconed the internally glazed units in the back door and also cut a rebate for the weather bar which is not required as the bar is flush with the face of the door -result very wet back passage this was before i bought the house and not noticed until it rained
hth Chris

[dom]

So does everyone only have double glazed units

[dalo218]

Just a quick one , how many house breakers arm themselves with the necessary tools to remove nailed beading and a tenaciously embedded glazing unit, when surely a brick would suffice , or incidentally about 15 seconds with a lock pick on your average euro lock.

[jfc]

Bricks are loud when they smash a window and most lowlife dont like noise cause they may get caught . Pushing a unit in will smash the window before you could actually push the glass in , cmon that one is a no brainer ! As for does everyone use double glazing .... its now the LAW mate and heavy fines if not used ........ seem to remember a window TAX that they tried many years ago resulting in people bricking up windows .

[paulchapman]

jfc said:

........ seem to remember a window TAX that they tried many years ago resulting in people bricking up windows

Christ, is Gordon Brown taxing daylight now ;D

[engineerone]

sadly for once, gordon brown, (our beloved leader )
is not to blame for the window tax, it goes back to around charles 1st i seem to remember and was one of the many reasons he lost his head( Shame we don't do that any more ;D)

think the tax was repealed after queen anne and william came over from holland.

paul

[mrgrimsdale]

I'm still fitting single glazed windows. Hve they changed the rules or summat?

cheers
Jacob

[rich]

Well this is the first Iv'e heard on dg laws, but as far as security goes, one golden lab and one westie does us just fine.
Rich.

[gazza]

As already stated by Andy, Keith and Woodworker the security issues of external beads only really evolved a year or two after the introduction of plastic (UPVC yuck!!) windows which were externally glazed.
All plastic windows were externally glazed being based on traditional wooden windows. The thieves then realized how easy it was to just pop out the slips (any old blade will suffice). The plastic window then became dodgy as it was easy to gain access to ones house, with no noise at all
Then all of a sudden the plastic window manufactures decided to advertise their windows as High Security Internally Glazed !!

So to answer your question Lynx The reason the windows are drawn to plan as externally glazed is that it is the traditional way to do windows.
HTH
Cheers,
Gazza.

[pitbull]

I prefer externally glazed, I hate the use of silicone on glazing. I prefer mastic. Unless it calls for leather.

[mooretoolsplease]

Always make my windows and doors to be externally glazed, never have any call backs that way