Low e glass on the wrong side

[Robbox]

My builder put all the glass for a French door set the wrong way round. I don't have a special test unit, but shining a very bright spotlight obliquely against the glass shows that the Low e side is on the outer pane. I understand it should be on the inner face pane. I understand the inner face of the low e glass has a milky look.
I had a big problem with this builder and cannot ask him back to correct. What are my options? The units were silicones in.
Is this a job for a good joiner or a glazier?
Do it make a big difference to the heat loss? Is it worth it to have it fixed?

 

[phatboy]

I assume the doors are wood if the units are siliconed in?

 

[Robbox]

Yes wood.
I googled this issue and it seems it doesn't affect the u value so much as the solar gain factor.

Just wondering if it's worth it having then refitted.....

 

[Robbox]

BTW this is a kitchen, so condensation could build up quicker on the units like this.

 

[noseall]

You are fretting over nowt.

All the energy efficient qualities of glass, when combined together do make a small difference.

However, it is not life changing.

You could have all the energy efficient glass in the world, but a poorly fitted frame, i.e. poorly sealed etc, will counter any of the bonuses of the glazing and then some.

I'm pretty sure my window suppliers said it doesn't make a great deal of difference which side it is on so long as they are both the same.

 

[big-all]

BTW this is a kitchen, so condensation could build up quicker on the units like this.

to be honest you are talking a fraction off one percent here
so the difference in general will be nill

if we assume its say 0.25% difference this is only off the percentage off heat loss through the glass so if the actual % lost through the windows is say 15% its now 1/6th the total so if your total heating bill is £10 a day the windows will =1/6th or £1.60p 0.25% will =0.004p a day will be about 1p every 16 weeks

 

[God]

Should make no difference, when we have a leaded sealed unit going into plastic frames the lead generally goes on the clear side, this then has to be glazed as the outer pane so you can see the lead. No difference

 

[Robbox]

thanks everyone, I thought the builder had really messed up....phew!