Glazing A Wooden Greenhouse

[sienewman]

Hi there, I'm new to the GYO forum and am hoping I can get some advice.

I'm planning to build my own greenhouse this autumn and am looking for some advice regarding the glazing of a self built wooden greenhouse. Each of the sides will be 4ft high so I will be using standard size 24x24" glass. Based on this the greenhouse will be 2 pieces of glass high, how do secure the glass to the frame and make it two pieces of glass high?

Thanks in advance!

[Greenleaves]

Overlap glazing clips for the two panes high and I just use glazing bead to hold the glass in place. To eliminate drafts I use simple sticky back draft excluder between the frame and glass

[Potstubsdustbins]

Or you could go old fashioned and use linseed oil putty

[bearded bloke]

Or you could go old fashioned and use linseed oil putty

Ahhh, sprigs ... I gone all nostalgic now wonder if you can still get them ???????????

If you are going for puttying them in you will not need overlap clips, soften the putty well (by working it in your hands), run in the back putties, place the pane in position with the desired overlap, with a ball of rag press the pane into the putty, what you are looking to do here is to get the top of the pane almost touching the wood & the bottom of the pane to almost touch the lower pane,along it's edge.This will give a very shallow triangle of air space, which will prevent water ingress by capillary attraction. With the pane in place fix by knocking sprigs (if you can still get them) or galvanised panel pins into the frame, face putty or bead to finish

[teakdesk]

If the sides are 4 feet tall why use 2 feet square glass ?

Surely you should be using glass 4 feet tall? It costs the same!

[bearded bloke]

That's interesting Teakdesk, when I was a lad horticultural glass was only sold in 2'x2'

[Kristen]

I use simple sticky back draft excluder between the frame and glass

I used that on my Aluminium greenhouse, bought 2nd hand off eBay, as I could not get replacement glazing beads. Worked well.

Rightly or wrongly I went for the Brown, rather than the White, because I thought it was more likely to have better UV protection.

[Potstubsdustbins]

Yep you can still get glazing sprigs, only now you can get a posh gun type thingy to shoot em in. Cost a bob or two though.

[sienewman]

Thank you all. It's given me a lot to think about. At the moment I'm thinking the putty/glazing sprigs might fit my needs best.

[teakdesk]

I buy my glass at the local glass merchant... cut to size on the spot from large sheets of glass.

They charge by the area so two 2 feet square panes are the same as one 2 feet by 4 feet piece.

A lot cheaper than buying ready cut in packs from diy or garden centres.

[bearded bloke]

sienewman, if your local hardware shop does not have sprigs, ask for "cut brads"

[Philplot]

If you have a local double glazing company, why not give them a visit.
They nearly always have a skip to dump unwanted panes of glass into.
Simply ask them for the waste glass panels. ( Might charge you a few quid )
These can be put into place as they are, or split into two pieces.
An advantage is that the glass is much safer than standard greenhouse glass.
The greenhouse would have to be built to the size of frames, which could be a bit of a challenge, if different sizes were available.