My house is 5 years old with a walk out basement.A few of the windows seep water when it rains realy hard on them.The basement is unfinished and I can see the water coming in by the corners of the window,and then running down the wall.I opened the window and poured water in the corner of the drain channel,and thats where it started to leak and run down the wall.Ant ideas on how to fix this problem?

 

The channel should have holes that drain to the outside. They might be blocked by crud or blocked when installed.

 

I have a similar problem but mine is more than just blocked j-channel or drains. Nine y.o. house is vinyl siding over (I think) OSB. The house was never tar-papered or tyvek wrapped, and there's no flashing around the windows. Also, the windows have NEVER been caulked. We bought 2 years ago from the original owners. Two windows have major problems, another 4 are problems in waiting, and another 6 are under eaves and probably won't require much more than caulk. I just got estimates to do the wrap, flash and caulking.

I don't know if you might have the same type of issue, but you might try to see what's around the windows/beneath the siding. Our problem seems to come from rain getting in aroundthe j-channel of the windows above the leaking ones the running in through nail holes in the fins or from the decorative window header (Fypon-like molded piece).

rts