| I'd not want these mounted at bottom.
I wouldn't want them anywhere. They give one a
feeling of being cut off from the outside because the
glass is pretty much always in the way of one's view.
Also, like casement windows, they're a poor choice
for ventilation. They tend to block the breeze. The only
thing to recommend an awning window is that it can
be left open in a blowing rain.
Sliders or double hung are far better for ventilation. I've
used "hopper" windows numerous times in cellars. They
can be good where nothing else works. I actually think of
them as "cellar windows". And many designs allow the sash
to be easily removed. But they're not very nice to have
in a living space. Again, the glass is visually in the way when
the window is open and the ventilation is not optimal.
Optimal ventilation is a hole in the wall with a fan in it. Anything
else is a compromize.,
Optimal visibility is a single peice of glass (or an open hole).
Anything else is a compromize. Double hung windows intrude on the
visibility at one point when closed and 3 (or 4) points when open -
all of them in the direct field of vision.Definitely not optimum for
visibility. Saying casements are a poor choice for ventilation shows
how little you know about windows and ventilation- as casements are
the most efficient at catching breezes.
Hopper windows in cellars are sub-optimal because they open a small
space to the basement ceiling. In a living room, or in schools where
they were very extensively used before schools were air conditioned,
they allow very good ventilation without directing the breeze across
desks and directly at students.. VERY effective at both letting in air
and causing the air to mix and destratify (upgoing air currents) They
tend to get in the way in living spaces as you need to keep
furnishings away from the wall/window to allow the window to open in.
Awning windows do not have that problem and they still have a (more
limitted) effect of causing an up-draft that destratified the air in
the room - causing good air mixing and ventilation.
Yes, the awning windows, like any devided window, interfere with
vision out one portion of the window - but they allow the greates
percentage of un-interrupted view for the amount of venting. If you
want to see the sky and distant views, put the operating windows at
the bottom. If youwant to see your yard, put the operators at the top.
The most common setup is operators at the bottom.
Hundreds, and thousands, of homes have this exact setup instaled
across North America - and also across Europe.
Why? Because it works, and it looks pretty good.
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