fitting d.g units into wood frames..

[Coaster]

Can anyone tell me if there should be a gap at the bottom of a double glazing unit with vent holes drilled into the frame?

I've just had a large unit fitted by someone who used packers but insisted that the gap a the bottom should be full of silicone.

If i need to rectify this, i'd need to pull off the wood beading, which has adhesive glazing tape stuck to it and the glass. would that be a problem taking off the tape?

 

[big-all]

its done correctly
drain holes are only nessisery because plastic window construction may let water buy within its relativly maintanance free life
where as wooden windows need maintainance every few years

 

[crank39]

Can anyone tell me if there should be a gap at the bottom of a double glazing unit with vent holes drilled into the frame?

I've just had a large unit fitted by someone who used packers but insisted that the gap a the bottom should be full of silicone.

If i need to rectify this, i'd need to pull off the wood beading, which has adhesive glazing tape stuck to it and the glass. would that be a problem taking off the tape?

He's correct in sealing the gap, as for the slot/holes, so long as he hasn't filled it in then any water that gets past the bead, which it will even with the glazing tape you have then it will drain into the slot and under the bead and onto the cill.

 

[Coaster]

He's filled the whole lot in. Solid silicone. No drain holes. Can you describe what i should be there so i can check against what he's done.. and in case i haven't described the situation properly ?

 

[crank39]

Its impossible to descibe drainage slots or holes in a window i haven't seen, can you post some pictures here showing the holes/slots and where and how they've been filled. Generally speaking though if they have been filled in then its wrong

 

[Coaster]

the holes don't show on the pics as he's filled them in. I know what you mean though so will have a go at the beading. Ta 4 the help.

 

[Coaster]

Forgot to ask. If i pull off the bead, could the glazing tape's stickiness risk me damaging the glass?

 

[crank39]

No, just stanley knife it first though, the bead will come off better

 

[Coaster]

cheers mate, will get me trusty knife out. ta for the help..again!

 

[squowse]

its done correctly
drain holes are only nessisery because plastic window construction may let water buy within its relativly maintanance free life
where as wooden windows need maintainance every few years

i disagree - water / water vapour should be encouraged out of the glazing rebate - a clear air gap all round and a drain/vent at the bottom should be provided.

there is some good info here - http://www.thewindowman.co.uk/wood_drainage_files/wooden_windows_drainage.pdf