I apologize in advance for the post, as i am a new homeowner with limited knowledge of home construction.
That being said, here is my issue.
I have recessed lights throughout my house. Several of the ones on the second floor now have water damage around them. I noticed about a month ago that the upstairs was much hotter than the main floor and much more humid also. I didn’t think much of it.
We have a new-ish home (4 years old) with a “flat roof”. First thing i did is called the company who put my roof on. After an inspection, he said he was having a hard time trying to determine how water could be getting in from above. He proposed that the can lights were just collecting condensation.
As a home with no attic, i am not able to get up in the space between the ceiling and the roof. There is about 2’ of space between the 2nd floor drywall and Roof deck.
So, i take out a can light and the can and the box with the electric in it are covered in moisture and the space and insulation is very humid and damp. Some mildew/mold growing on the OSB.
So, my theory is that humidity is rising to the highest part of the house and leaking out through the can lights. The super hot summer attic and the “colder” humid air is collecting on the metal. I have no other ideas as to how to diagnose the issue.
The only solution i can come up with is to insulate the light so as it slides up into the can, it is “air tight”.
But i don’t really know. I also am worried that this moisture has moved across the ceiling, as i am experiencing some bleed through mildew in other areas of the ceiling. the roof/ceiling is engineered OSB i beams, 12" on center.
My questions are:
- has anyone ever experienced this?
- what is the remediation plan?
Thanks in advance everyone!