Missing shingles or a failing roof system might be your culprit.
Roof window leaking.
An ice dam occurs when snow melts and the water freezes when it hits the colder edges of your roof.
Check plumbing vent boots and roof vents if water is entering from that area to cause the leaking roof.
Window leaks flexible sealant apply flexible sealant to cracks or holes in the brick mortar or home siding shingles replace missing shingles or damaged shingles if caused by a roof leak vents flashing examine vents or flashing higher up on the roof for gaps cracks damage.
Leaks are stressful making it essential that you work with a professional roofing company who has the knowledge skills and experience needed to pinpoint and correct any weaknesses in your roof system.
Make sure the sill at the bottom of the window frame is pitched.
Sometimes leaking water is finding its way into your through your window sills or frame but is actually coming from your roof.
This roof leaks during the snowy part of winter and during storms in the summer certainly due to poor flashing.
The most common way of sealing windows today is with the use of expanding foam.
Have a roofing expert conduct an inspection of your roof system.
Use this material accurately to avoid window leaking.
Re seal the glass to the gasket with clear silicone caulk.
Look for cracks in the base of flexible rubber flashing or broken seams in metal varieties of vent pipe flashing.
In the photo you can still see signs of an ice dam.
If your window is leaking around the top of the frame you may not actually be experiencing a window leak at all.
Check the gasket between the window frame and the glass.
The soffit that meets the roof is one of the toughest areas to waterproof.
The leak is an area about 4 long about 2 feet from one of the edges of the window and the sill above the window shows a wet spot which is wider near the window tapering to a smaller point towards the inside of the sill where it meets the interior wall.
You can try some simple maintenance work such as.
Unfortunately stains on the top of the window frame are more likely to indicate a leak within the walls of your home.
These air channels will eventually cause water to come down through.
If there s too little foam used there will be air channels between the window and the wall.