There should be no daylight what so ever coming into your attic space.
If you see daylight in the roof attic.
You should clean your gutters in fall after the leaves have fallen.
Prepare to inspect your roof.
Some models actually do have bands or stripes of daylight showing around the top part of the inside coming in through angled louvers.
I can t imagine its really bad but i don t know exactly where the light is coming in but it might be coming in underneath the soffit board.
If the eave opening as shown above where daylight is showing over the baffles you may or may not have them used to keep the insulation from blocking the eaves with a normal roof with an attic which is not within the conditioned space so open to outside air not heated or air conditioned you need airflow to remove moisture either making its way up from the house coming in with outside air and condensing or frosting up in the attic on cold nights or from roof leaks and heat from.
Perform a roof inspection.
Which ideally needs sealing up to prevent any moisture or rain driving in as it could cause damage in loft area.
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On a bright sunny day go into your attic with the light out and see what daylight you can see.
Shingle obstructed ridge vent warning.
In an attic you should be able to see light near vents.
Should i see daylight in my attic.
Once the room is dark and your eyes have properly adjusted you can do a proper roof.
But if the rain is coming at an angle and getting in you might want to seal the.
If when inspecting from the attic and looking up into the slot of removed plywood at the ridge of the roof you see the under side of a roof shingle either the roofer made the ridge vent a bit longer than needed or something else is going on that we d need to check from outside.
You should not be able to see directly outside but there will normally except with baffled caps used in frequent blowing snow or rain country be daylight not direct sunlight shining into the can.
If you have a ridge vent there could be light at the ridge but again it should be a glow more than a ray of light.
At most there should be a glow of light at the eaves end of rafters by floor you should not be able to see your neighbor.
The daylight is coming through the sides.