"Double hung" windows have two movable sashes. Each sash
moves vertically, traveling in its own track. For this reason, the
units are also referred to as "double track" windows. Both sashes
travel independent of one another and both should travel the entire
vertical length of the frame.
Generally, a single hung window will look very much like a
double hung window, but the top sash is stationary and just
the lower sash moves up and down.
It should be noted that many, many double hung windows are
accidentally "converted" into single hung units by inexperienced
amateur painters who paint the upper sashes shut. The previous
owners of my house did that to every window in the house.
If you have double hung windows which have been painted shut
on both the inside and the outside, figure on taking about one
hour per window to free the upper sash without damaging the sash,
the frame or the glass. Some spot priming and painting may
be necessary also. Small first floor windows may go quicker;
large and/or second floor windows may take longer, especially
if you keep dropping tools while up on the ladder. :)
JimL wrote in message ...
single hung vs double hung....
What's a good trick to painting so you don't stick the windows shut?
1) Leave both sashes slightly open (1" or so) so that you
only have sticking concerns on the vertical sides of the sashes.
2) Avoid slopping too much paint where the sashes met the frames.
3) Move the sashes up and down a few times while the paint is
drying to break any bonding between sashes and frame.
This has worked for me. If you need to remove the sashes for any
repairs such as sash cord replacements, then obviously you should
paint while the sashes are out. Speaking of sash cords, avoid getting
any paint on them. It shortens the life of the cords.
I'm certain that there are pamphlets at hardware stores and paint
stores which give a pretty thorough description of the correct painting
techniques and the proper sequence of steps for painting the windows.
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