Any reason not to use pulley seals in my double-hung windows?
I've searched the forums here for "pulley seals" and haven't seen anything talking specifically about these.
Most of our double-hung windows have the upper sash pulley exposed. When the wind really blows, I can feel the air coming in. :-) Some of the windows have what I think are called "pulley seals". They look like grooved aluminum pieces that cover the pulleys and the windows ride up and down on them.
With winter approaching, I'm thinking of getting pulley seals for the windows that don't currently have them. I'd like to know if anyone knows of reasons why pulley seals should be avoided.
Forewarned is forearmed! :-)
Thanks in advance,