ᐅ Single roof window versus two skylights, price difference?

Created on: 10 Jan 2023 20:08
A
Araknis
Araknis10 Jan 2023 20:08
Hello,

we are planning an open gable roof structure with a 25° roof pitch. The bathroom will be located roughly in the center, directly under the ridge. Since the bathroom is 3.5 meters wide (11.5 feet) and centered under the ridge, this does not allow for very large roof windows on both roof sides. Therefore, we are now considering a ridge window. While there are occasional absolute prices available for the bare window, for example from Velux, I currently lack information regarding the potentially higher installation effort compared to two roof windows with the same total window area. At the moment, I cannot estimate how much more complex installing a window in the ridge is compared to a roof window mounted between the rafters.

Could someone with experience share their insights?
11ant10 Jan 2023 23:02
I think someone would first need to be able to imagine what you are planning. You have been here long enough to understand the value of illustrations.
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i_b_n_a_n10 Jan 2023 23:19
Araknis schrieb:

Hello,

we are planning an open gable roof structure with a 25° roof pitch. Fairly centered and directly under the ridge, we want to place the bathroom. Since the bathroom is 3.5 meters (11.5 feet) wide and centered under the ridge, this does not allow for particularly large roof windows on both roof slopes. Therefore, we are now considering a ridge window. While one can sometimes find absolute prices for just the window itself from manufacturers like Velux, I currently lack information about the potentially higher installation effort compared to two roof windows of the same total glazing area. At the moment, I cannot assess how much more complex it is to install a window at the ridge compared to a roof window between the rafters.

Can anyone share their practical experience on this?

I am wondering what happens with the ridge beam in such a window? With a 25° roof pitch, shouldn’t two roof windows of about 1.2 x 1.4 meters (3.9 x 4.6 feet) each be possible?
Araknis10 Jan 2023 23:38
[IMG width="228px"]https://www.weissenberger-bedachungen.de/media/de/marke_hersteller_produkte/velux/ueberfirst/ueberfirst.jpg[/IMG]
It could look something like this. The question is whether this is possible with standard roof windows? I’m not sure about the required distances from the ridge. Or am I making a problem out of nothing? A 1-meter (3.3 feet) high window might work, depending on how far you need to stay away from the ridge beam.

When I searched for ridge windows, I came across something like this, but it seems to be a different type:
[IMG width="446px"]https://glasolux.com/wp-content/uploads/2019/06/ueberfirstverglasung.jpg[/IMG]
Araknis10 Jan 2023 23:50
Addendum... I just checked with Roto. One of the standard sizes is 78 or 98 cm (31 or 39 inches) in height. That should be quite feasible, I think.

Still, out of curiosity, does anyone know how much a ridge window or ridge-top window, as I have since learned, typically costs compared to regular roof windows?
11ant10 Jan 2023 23:53
As shown in the third (lower) picture, this is the easiest method; in the second (upper) picture, it will be more difficult (judging by the widths, it looks like there is more than one rafter bay per element). Unfortunately, you forgot the first picture (which is how we imagine the situation on your side), but that would have been the most important.
Araknis schrieb:

Still, out of curiosity, does anyone know how much more a ridge window or a window above the ridge, as I have learned it is called now, costs compared to regular roof windows?

Window above the ridge, huh, you’re always learning (?).
The ones in the lower picture seem comparatively cheaper; they don’t look like they can be pivoted (but apparently include sun shading).
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