I regularly run parallel line and insulated ladder line across a metal
window sash at right angles, with no problems. But, I set a piece of
pipe insulation under the sash bottom to provide an insualted feed thru
point.
One side of pipe insulation is already slit, and it is simple to cut a
slit in the other side for the line to pass and be held by gentle
pressure of the window sash above. A window lock added to the side of
the sash railing allows one to maintain security of the window. Stuff
more pipe insulation between the panes of glass at the top of the partly
raised sash to maintain a draft free window.
In dry weather, I have draped window line on bush limbs or tree limbs to
take up excess line in FD installation, where I don't want to shorten
the line. We tie off the line with a string to the limb above, or to a
tent brace above where we route the line.
Stuart
K5KVH
|