Dear forum community,
I would like to ask for a brief assessment regarding window options.
It concerns the windows in the children’s rooms. These are the second windows, meaning there is also a floor-to-ceiling window on the gable side.
The windows in question (with blinds) are located on the eaves side (south side) in the knee wall area (finished interior height 1.80 meters (5 ft 11 in)) and are currently planned to measure 2 m x 70 cm (height x width 72 cm (28 in)). It is known that fall protection will be required. The children’s rooms are 15 square meters (161 sq ft), so natural light is more than sufficient.
However, we are no longer sure whether 2 meters (6 ft 7 in) is too wide. We are now leaning towards a width of 1.76 m (5 ft 9 in). The windows are not tall, which might compensate for the width.
Now the question is, would tilt-and-turn (French) windows without a mullion be better for increased daylight, or should we choose windows with a central mullion? There is no need for load-bearing capacity through the window.
Has anyone installed similar windows and can share their experiences? How does the daylight performance actually compare between these two options?
Thank you for your assessments and opinions.
Charly
I would like to ask for a brief assessment regarding window options.
It concerns the windows in the children’s rooms. These are the second windows, meaning there is also a floor-to-ceiling window on the gable side.
The windows in question (with blinds) are located on the eaves side (south side) in the knee wall area (finished interior height 1.80 meters (5 ft 11 in)) and are currently planned to measure 2 m x 70 cm (height x width 72 cm (28 in)). It is known that fall protection will be required. The children’s rooms are 15 square meters (161 sq ft), so natural light is more than sufficient.
However, we are no longer sure whether 2 meters (6 ft 7 in) is too wide. We are now leaning towards a width of 1.76 m (5 ft 9 in). The windows are not tall, which might compensate for the width.
Now the question is, would tilt-and-turn (French) windows without a mullion be better for increased daylight, or should we choose windows with a central mullion? There is no need for load-bearing capacity through the window.
Has anyone installed similar windows and can share their experiences? How does the daylight performance actually compare between these two options?
Thank you for your assessments and opinions.
Charly
K
Komposthaufen10 Feb 2017 07:31Fixed sash and mullion do not differ significantly in terms of light yield. By the way, there is a third option: one window section fixed with glazing and only the other one operable. This could possibly be the most cost-effective solution.
Where is the light yield supposed to come from? Both the French casement and the mullion have two sashes – whether the frame is 1 or 2 cm (0.4 or 0.8 inches) wider doesn’t really matter.
Whether the brightness in the room is sufficient naturally also depends on the orientation, as well as the wall colors and the furnishings.
I would make the width measurement dependent on the external appearance.
Regards
Whether the brightness in the room is sufficient naturally also depends on the orientation, as well as the wall colors and the furnishings.
I would make the width measurement dependent on the external appearance.
Regards
B
Bieber081510 Feb 2017 09:54CharlyC42 schrieb:
Now the question is whether flush casement windows offer better light output, or windows with a mullion. In terms of light output, there should be no noticeable difference. With flush casement windows, you can only tilt one sash, and the "second" sash can only be opened after opening the "first" one. With a mullion, both sashes can be tilted and opened independently. Flush casement windows allow for one large opening, while mullion windows provide two side-by-side openings.
Hello and thank you very much for these initial assessments.
As mentioned, the vacant windows are the second ones in the room and therefore not really relevant for ventilation. Additionally, we have a controlled mechanical ventilation system in the house.
It was also a bit about practicality, since we want to place the desk under the window, or at least under half of it, so only one side would be opened - if at all. Fixed windows are not an option because of cleaning.
Has anyone installed either option in their home and can share whether it worked well or poorly? Especially since fall protection is required for both variants due to the building height.
Thanks and good luck
Charly
As mentioned, the vacant windows are the second ones in the room and therefore not really relevant for ventilation. Additionally, we have a controlled mechanical ventilation system in the house.
It was also a bit about practicality, since we want to place the desk under the window, or at least under half of it, so only one side would be opened - if at all. Fixed windows are not an option because of cleaning.
Has anyone installed either option in their home and can share whether it worked well or poorly? Especially since fall protection is required for both variants due to the building height.
Thanks and good luck
Charly
Similar topics