How to paint re glazed windows?

[compact]

I've had my windows re glazed.
The guys from the glass company said dry fit the panes and wood beading, as silicon can slowly rot the rubber between the glass.
However the said a thin bead of silicon where the wood beading meets the glass helps seal against the rain.

Now today a painter has said the opposite, no silicon as the paint peels off it.
He said you paint a small bit of paint onto the glass to create the waterproof seal.

What do you guys think?

 

[crank39]

Painter is correct, paint won't stick to silicone

 

[geraldthehamster]

Silicone is a good idea to seal against rain, provided

(a) It doesn't get onto the surface that will be painted, and
(b) You use a low-modulus, neutral cure silicone (which will not attack the seals in the DG units)

Cheers
Richard

 

[compact]

What would you advise?
Paint the bead white and a small bit onto the glass
Or
Paint the bead white and then a small bit of silicon on the join where the bead meets the glass ?

 

[ronniecabers]

I've had my windows re glazed.
The guys from the glass company said dry fit the panes and wood beading, as silicon can slowly rot the rubber between the glass.
However the said a thin bead of silicon where the wood beading meets the glass helps seal against the rain.

Now today a painter has said the opposite, no silicon as the paint peels off it.
He said you paint a small bit of paint onto the glass to create the waterproof seal.

What do you guys think?

I'd change glaziers for a start ....If they'd used Low Modulus silicone , the seals on your sealed units would be fine. I hope the wooden frames are ' self draining ' , ( eg bottom bead sits off the frame and lips over the edge ) or your sealed units may have a shortened lifespan. Did the glaziers use a sealant for the beads ...usually Hodgsons flexistrip ( other names possibly called are putty on a roll or tremco ), it would fit between the bead and the glass , and would expand and contract with the changing weather
As goes the paint/silicone issue , paint indeed does not stick to silicone , my suggestion would be paint the windows and then apply either clear silicone or one that matches the colour of your windows ( or close ) , also make sure you do all the points where beads meet ( eg corners ) ... your biggest problem will be you will need to re silicone every year , as wood constantly moves in the changing weather and will eventually pull the silicone off the wood/glass ( more prominent in very warm weather as the wood shrinks....)

 

[geraldthehamster]

Apply the silicone in the recess where the beading will go, away from where the edge of the beading will be, so it doesn't ooze out. You don't apply the silicone after the beading has been fixed. Silicone goes in, not on.

 

[compact]

Thanks for all the replies.
The job was a DIY one, so can't sack myself.
I used foam glazing tape on either side of the panes.
Wood beads.
Then a thin bead of silicon where the wood bead meets the glass to stop any moisture getting in.

But no draining holes at the bottom.
Should I be taking the beads off and putting drainage holes, or is the silicon bead a good option to seal it all in