Question for the MCI guys on windows

[shelled]

...  I think I can work around the draw backs, was just wondering about the seals lasting once we start opening and closing them on a regular basis.

Opening & closing them regularly will actually extend the life of the seals as long as there is no physical damage (cuts/abrasions).  Flexing allows them to recover from being squeezed when closed, slows down adhesion to adjacent metal and helps keep the volatiles in.

Sun and heat are the real killers.