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We just got new UPVC windows and found water in the frame after heavy rain the three back windows you can open up. So this is the norm and it should drain away or dry out. If I push the water to what I take as weep holes I can see it leave the bottom of the frame outside onto the window ledge. So heavy rain actually comes through to the frame below the window even when it looks like a sealed outside.

Would someone clear this up for me who knows what they are talking about. Appreciate any help on this.

  • If the outside windows are closed and water comes in, then something is not right. Water/rain should flow down the outside and out the weeping holes. Should only have water inside if there is condensation(humid air on cold surface) on the inside of the windows.
    – crip659
    Commented Oct 4, 2022 at 16:18
  • Sorry added a picture now. It doesn’t come onto the actual bedroom windowsill in the room just between the frame when you open the windows. Commented Oct 4, 2022 at 16:23
  • Yeah, houses aren't boats. They aren't waterproof. They shed water. Heavy enough rain will overwhelm almost any window.
    – isherwood
    Commented Oct 4, 2022 at 16:25
  • Our last windows were 30 years old and I can’t remember ever seeing water like that in the frame. I just thought the windows would be sealed and water would not get in. Commented Oct 4, 2022 at 16:28
  • no, it should not be inside regardless, where does it comes from, the top ?
    – Traveler
    Commented Oct 4, 2022 at 16:29


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