Triple glazing vs double?

[TheotherMissHoolie]

We need to replace all of our windows. Is it worth going for triple rather than double glazing? Keen to insulate the house as much as possible...

i looked at this a couple of years ago. Triple glazing, I think, needs to be in a deeper frame to be effective. ie you can't squeeze triple glazing units in a standard double glazing frame as then the gaps between the glass become too narrow to be that much more effective.

Thank you.

We had it in an old flat as it was on a particularly good offer.

I think the u value was pretty much the same as decent double glazing but it made a tremendous difference to noise.
We weren't on a main road or anything so hadn't expected much of a difference but it cut out such a lot of the wind, battering sea, seagulls etc.

If that's something to consider could be worth it

We had triple glazing fitted to our house 9-years ago and would recommend it.

Was quoted by Everest (who offered triple as standard) but went with a local company due to cost.
Frames are exactly the same for double or triple, it is the retaining strip that is thinner as the pane is deeper. If you ever wanted to, it is perfectly feasible to revert to double and conversely anyone who uses these frames could upgrade to triple.
Was it better? Can't comment on heat loss but they seem to retain heat very well, no condensation issues and I am certain noise is less (difficult to be certain as very quiet cul-de-sac location).
With regards to cost it was only a very slight increase over double (less than 10% if I recall correctly?) so worth doing.

In conversation many people said the hinges would fail within 12-months due to the extra weight (we have a lot of openers, side & top) but in 9-years non of them have ever shown signs of wear and we open them a lot so I think this was just scare mongering.

We went for triple, it's a solid walled house so no massive insulation benefit, but we got the outer pane slightly thicker glass which prevents noise. This is great given we live on an A road as we hardly hear the noise from the road. When we had the back extension done we just went for triple again partly
to match up, plus the back is modern and better insulated, including a glazed facade, and North facing.

Regarding the extra weight, there are maximum sizes for any window given the ironmongery needed and the weight of glass. For triple glazed the limits are smaller, we were at the absolute maximum width and height for the rear sliding doors, to go bigger it wouldn't be possible with triple. However they are 2400h x 2600w for the pair so not too v bad

I don't know about triple glazing tbh.

I have double, and I think most of the heat leak is actually not from the window, but from the trickle vents above.

It seems kind of weird to go to the nth degree to insulate the window, only to have a massive draft through the trickle vent.

One day I'm going to buy an FLIR camera and check it out.