general, a leak is:
(A) water infiltration between the
stationary glass and the window frame.
(B) water running down the inside of a
(C) any condition where water accumulates
in the windowsill,
runs down the inside wall.
following are not automatically leaks:
(A) Presence of water in the
windowsill. Ventilating windows will
often admit some water; this is particularly true when
to directed high pressure flows. They
manage the water that comes in during average storm
and normal vehicle washes. They cannot withstand
submersion, nor extraordinary flow velocities and volumes.
All ventilating sliding windows, and many awning-type windows are provided with
"weep slots" or "drain slots." These allow any water coming in, whether
through bypassing the opening pane, or from condensation, to drain out, rather
than be trapped inside the vehicle.
running down the inside wall. If water appears between the window frame and the clamp ring, there is an installation leak, or the water is coming through the wall. Installation leaks occur when the window flange has not been
properly bedded; when the frame bedding has become brittle
or has been breached, such as by racking of the unit wall;
improper hole cutouts, causing insufficient coverage by the
mounting flange; and walls curved, preventing a continuous seal under the window flange; Water leaks through
the wall may originate in several areas, often remote from the window. Examples are: improperly sealed clearance lights and seams in sidewall skins.
glazing vinyl; in most cases, the glazing vinyl is
cosmetic only and does not seal.
Look for gaps in the
under the glass. If present, they should be lightly
caulked, allowed to set up, and the vinyl replaced.