Window installation - sliding terrace doors long-term experience

Hello,

I currently have the offer below for windows. Now I am lucky to get the windows and doors through family for less than half the price, so some budget is free to possibly choose a better window configuration.

However, I did not feel optimally advised in the store. For example, statements like triple glazing is not necessarily necessary and there are no standard sizes bothered me. The statements may not be wrong, but double glazing somehow seems outdated to me in a new build and it is true that all window size requests are possible, but I value that retrofits like insect screens do not also have to be custom made because my windows are 3 cm narrower, but “normal” sizes that are always in stock fit.

What is certain so far is that the windows are a bit too narrow for me. I imagine 1100 mm x 1385 mm. Is that a common size or do you recommend ±2-3 cm more? Privately, a mushroom head lock was recommended to me (behind us there is still an apple orchard of the municipality and then only forest).

Do you see any useful additions? The building is according to the Energy Saving Ordinance 16.

PS: Can you report on any long-term experience with sliding patio doors?

Is it about renovation or new construction? In new construction, the heat calculation determines the required window quality. We, for example, would not have met the required 0.9 with double glazing and had to use triple glazing, whereas in a moderately insulated old building, double glazing can be sufficient because it doesn't help if the window insulates better than the wall next to it. There are standard sizes, 11ant knows these. Contact him via PM. Pilzkopf is, in my opinion, standard. Sliding doors long-term: unknown. Karsten

Yes, it is a new building.

As an addendum - I meant a lift-and-slide patio door, total width at least 2 meters

Hello,

if you are building according to energy saving regulation 16, you are almost obligated to choose triple glazing. This is because you have to achieve a specified Ug value of the glass (thermal transmittance coefficient). There are only a few manufacturers who manage this with double glazing, but this only works with special gas filling in the cavity between the panes. Experience shows that in some cases even the "special fillings" are more expensive than triple glazing. In terms of cost-benefit factor, there is no point in discussing... triple glazing is miles ahead.

I would definitely recommend triple glazing to you!

For the sliding door, I would advise you to pay attention to the desired width. A lift-and-slide door is probably the wrong choice at a width of 2 meters. Due to the small width, the running path is not optimally loaded and thus the lift-and-slide door is not easy and sluggish to operate. The better option here would probably be a parallel sliding door. These doors are basically the little sisters of lift-and-slide doors and are especially suitable for small construction widths.

I hope I could help you.

Regards

Lugge

Triple glazing is not necessarily required and there are no standard sizes. These statements might not be wrong, but double glazing somehow no longer seems up-to-date to me in a new building

Glasses have qualities too, not just thicknesses and quantities. Triple glazing does not automatically have (significantly) better heat transfer values. Also, heating thermal insulation and solar radiation insulation are not the same. So not "more is better," and every glass has its application area. Standard sizes are out, "made to measure" rulez. But there are "stock sizes" in which you can more easily find low-price offers – but that is then the distribution channel of DIY stores.

I imagine 1100 mm x 1385 mm. Is that a common size

113 x 138.5 would be a common size that I would also recommend; 101 "wide" is a bit stingy. With these "110s" (the frame size is about 3 cm less than the rough opening target dimension) you are already on the right track.

For your patio doors, correspondingly 176 or 201 cm width would be recommended. But you can forget about sliding doors in these sizes. Their passage dimension is practically only suitable for anorexics. Better take normal hinged doors, double-leaf with mullion. The swing space for opening fits with you, sliding doors under 251 cm are nonsense.

Why Kokolores?

We are currently planning with 2 lift-and-slide doors. One from the kitchen and one from the dining area to the terrace. They are 2.20m wide for us, and when the door is open, you have a passage of 1m, right?