Oneoldbird:

Make sure the weep holes / drains on the outside of the window frame are clear of debris.

SUUUPA-LAME1:

Huh?

daniel32433:

I’ve fixed one window twice. 1st Time the drain holes weren’t big enough to handle the mass amounts of water that flow down the side of the slide so since I never open the window I caulked it shut. The next time the same window 2 years later had trim shrinkage at the top of the bottom window so there again I caulker a 1/4 inch spot to fix. No more leak.

Biff_McBiff:

I’ve not seen felt in a window like that. Usually the lower channel is empty. It makes me wonder if the felt itself is causing water to wick through the weep holes.

mrt_111:

Rain water should stay on the outside of the window. If it is leaking get it fixed. The water will get in the wall and mold will grow.

Source: This felt always gets wet when it rains. Is it supposed to? This is a different RV but the old one was the same way

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