Motorised flip window, triple glass 3m2, doable ? :o

[threesixright]

Hi,

We are planning a flip window, 3 meters wide, 1 meter high (triple glas) - 3m2 ~ 160 Kg.

The door/window company that makes all our windows offered motorised 1000N (2x) system, that could flip it up. Now, they stated it would be better to make 2 windows, essential cutting it ½. Needless to say, that would be a pity.

Anyone here experience with something like this, what are your thoughts? Is it indeed to big/heavy? Other solutions?

 

[Gregor]

That depends on where the hinge would be. As you want to flip it up I take it the hinge being on the top. Some thoughts:
With 160kg... You won't be able to open it manually, ever. And letting it go once (for whatever reason) will make you need a new window - and likely some new bones in case you have any part of your body in the way of it closing.
While a mechanical (or electric) opener might do the trick... I wouldn't feel comfortable being in the structural clearance.

Regarding other solutions: Do you have a drawing or picture of the place you want to put it? Could give some inspiration to come up with something different.

 

[Svar]

That depends on where the hinge would be. As you want to flip it up I take it the hinge being on the top. Some thoughts:
With 160kg... You won't be able to open it manually, ever.

No. You are not lifting 160 kg, you are swinging it. Opening it 15 deg. will require force ~200N. You can do it with one hand.
And that's if the hinge is on top. If it's in the middle (bottom swings outside, top - inside), than it's almost effortless.

Not trying to give advise about the window. I'd listen to what professionals from your company say.

 

[Jiggy Joiner]

If pivoting, it would be hung in the centre. With a piece of glass that length and weight, there would be considerable deflection, and also strain on the pivot points. Which might well be why the company has suggested, that it made in two pieces.

We install all kinds of glazing products, form windows and doors, to large pivot doors, pivot windows, sliding and bi folding doors, and the heavier they get, more considerations have to be taken into account.

 

[Cheese]

The window you're describing is commonly referred to as an awning window in the US. There are both manual push-out  and mechanical crank-out models available. Shown below is a Marvin "modern" crank-out version.

[attachimg=1]

FWIW...one of the top tier window/door manufacturers in the US is Marvin Windows. They produce literally, thousands of different sizes for both the consumer and the commercial market. They offer a "modern" version with triple glazing and they put a size limit of 96" x 40" on their push-out model and a size limit of 96" x 64" on their crank-out model. The outside frame is pultruded fiberglass with an internal frame of extruded aluminum.

For their more conventional style awning window which has an extruded aluminum outside frame with a conventional wooden inside frame, they put a size limit of 72" x 48" on the window for both push-out and crank-out models. Obviously frame materials dictate maximum sizes.

[attachimg=2]

 

[Gregor]

That depends on where the hinge would be. As you want to flip it up I take it the hinge being on the top. Some thoughts:
With 160kg... You won't be able to open it manually, ever.

No. You are not lifting 160 kg, you are swinging it. Opening it 15 deg. will require force ~200N. You can do it with one hand.
And that's if the hinge is on top. If it's in the middle (bottom swings outside, top - inside), than it's almost effortless.

I was thinking about fully opening it, not putting it only slightly ajar.

But you're correct, as you would hold only half the weight (the other is held by the hinges) you would have to deal with only ~80kg - but in an overhead position.

 

[threesixright]

Thanks for the feedback!

Thats much like the window [member=44099]Cheese[/member]

We are asking for a reversed calculation, so we can see how much it can hold without having to split the window. Another option is to down-scale it to double glass.