Probs with glazing new greenhouse

[william wallace]

Can anyone help?
Almost finished building 8x6 greenhouse but have a glazing problem with one side of the roof.
All glass is in except one roof, side with skylight.
But the glass won't fit this side - it appears to be slightly off square, not by much but enough.
Any suggestions

[Potstubsdustbins]

William, first thing check the frame work for square if you purchased the glass with the GH this is more likely to be the problem.

Colin

[william wallace]

If that's the case - and bearing in mind the based is concreted in, and the gh erected and glazed excepting the one roof side : any ideas about remedies ?

[Potstubsdustbins]

First check exactly what the problem is, measure the glass and if you have a square check with that as well on all 4 corners. If thats OK check each individual glazing square the same way.

An easy way to get a clue is to measure diagonally from corner to corner of the main frame these two measurements should be the same. Once we know what the problem is we can have a think to find a way out of it.

Colin

[william wallace]

I've just checked the diagonals, and they differ by about 1.5cm on a length of 103cm. All the glazing went in fine, apart from this side of the roof. I think I may have to try to trim the glass by a small amount

[bearded bloke]

The corner with the longer dimension needs lifting & packing by approximately half the diagonal dimensional error bud

[Potstubsdustbins]

Spot on BB.

As to trimming the glass removing anything less than about 1/2" wide is difficult, it can be done but you would need glass pliers/snips as well as a wheel cutter. I would try everything else before going down that route and many years ago I used to cut glass on a pro basis.

Colin

[rana]

There may be a slight variation in the pieces of glass. Measure up those of the "same" size and try swapping them around.

[chris]

Is the frame tightened up? Despite it being heavy, I left mine loose- then pushed one corner to get my final piece in... I made sure it was square sfter and no pane was under stress!