Replace glass in Double Glazed Window?

Shefwedfan

I have moved into large house. House is large and full of windows. There is around 20 windows of various sizes. Also 6 sets of French doors.

There is double glazed windows installed but no idea when they where installed.

I seen a couple of companies are now offering to replace older glass with newer more energy efficient.

Just wondering if anyone knows if this is worth it? is there anyway to test if windows are heat loss issue in house?

Would it be better to replace the double glazed windows with triple?

MicktheMan

Shefwedfan wrote: »

1. is there anyway to test if windows are heat loss issue in house?

2. Would it be better to replace the double glazed windows with triple?

1. Yes, have the house tested for the 3 forms of heat loss (heat loss survey)
2. Generally, yes

Water John

Double glaze are usually dated on the bead in between the glass panes.

In many ways it depends on your finances, whether to replace. There may be other jobs which would give you better ROI.

Shefwedfan

MicktheMan wrote: »

1. Yes, have the house tested for the 3 forms of heat loss (heat loss survey)
2. Generally, yes

Any recommendations to carry out heat loss survey?

Shefwedfan

Ok I rang -snip-. Seemingly they dont replace glass unless it was there own windows to begin with....

I looked into between the glass and date is 2001-03

Is there anyway to check who manufacturer was? It does say K-MAC and then long list of numbers/letters....

Thanks

Water John

So your windows are 15 years. They are not old. Where do the french doors open to? How quickly does the house warm up and cool down with the heating.
Dig out the BER Report. Study as to the recommendations.

daithi7

I'm not a fan of triple glazing at all really. Why?

- They are costly
- They are bulky, with all opening windows being clunky and frames bigger and chunkier & uglier imho
- They let less light in

I wouldn't be surprised if triple glaze is a fad, and will be progressively dropped due to the above reasons (& perhaps a few others e.g. 2 cavities to fail versus 1, etc, etc)

Water John

Double glazed has improved dramatically. The U value figures are away down on 10 years ago.
If one gets a good deal, has the cash etc, they may be worth changing in a house with a lot of glass. It's more about being comfy, than ROI.

Shefwedfan

Water John wrote: »

So your windows are 15 years. They are not old. Where do the french doors open to? How quickly does the house warm up and cool down with the heating.
Dig out the BER Report. Study as to the recommendations.

Doing the below to about 60% of house, other section was built circa 2001 so not touching apart from attic insulation

Recommendation from BER(First time reading it)
Draft lobby which I am installing....
Floor insulation which I am installing
Attic insulation which I am putting in insulated slabs on ceiling and 400mm of fibreglass in attic
Wall insulation: I have pumped the walls with beads and putting on insulated slabs
Solar panels: not sure yet will I install

That is really it, I am not certain if I do all of this will the windows then become an issue. Don't want to spend all this money and then windows are like a hole in side of house

I will be using air tightness tape around the windows where possible

daithi7

Hmmm fine. But any time I looked at solar there didn't seem to be any payback.

Also, remember you need ventilation, particularly in old houses that are designed for it. So I'd spec any windows with vents if I were you.

Water John

Yeah solar is a waste of money. Unless PV becomes practical with FIT but doubtful.
Changing the glass is nearly about if you have the spare cash.
I think with the works you have set out you'll have a comfy place, esp the draft lobby.
Very hard to have an older house very sealed.

fatty pang

daithi7 wrote: »

I'm not a fan of triple glazing at all really. Why?

- They are costly
- They are bulky, with all opening windows being clunky and frames bigger and chunkier & uglier imho
- They let less light in

I wouldn't be surprised if triple glaze is a fad, and will be progressively dropped due to the above reasons (& perhaps a few others e.g. 2 cavities to fail versus 1, etc, etc)

Your assertions are wrong and your opinions are.... 'amusing'.