Pattern glass

[sdelasal]

Can anyone tell me whether the pattern glass of a double glazed door unit should face outddors or face indoors. I've a new frame with glazed units and the flat glass is facing in - i'd of thought it should face out and the pattern pane face in.
Steve

 

[masona]

Normally the outside glass is smooth so pattern on the inside, I've been told the reason is that the smooth side doesn't collect dirt as much as the pattern side.

 

[noseall]

rough in smooth out.

 

[biffvernon]

A double glazed unit might be made of a sheet of patterned glass with a smooth and a flat side and a sheet of clear glass with a low-e coating on one side. In which case the surface from the outside counting inwards should go:
1 Smooth face of obscured glass
2 Rough face of obscured glass
3 Low-e coated face
4 Plain