Repair, Replace, or Remove the Opening
The answer depends on the unit's condition, the curb it sits on, whether the building still benefits from the daylight, and whether a roof project is already scheduled.
Repair the Detail
The unit is serviceable and the failure sits at the flashing, curb, sealant, or membrane tie in. Repair makes sense here, and correcting the surrounding roof detail is usually what actually stops the leak rather than anything done to the skylight itself.
Replace the Unit
Glazing has yellowed or crazed, seals have failed, or the frame has deteriorated past sensible repair, and the building still wants the daylight. Replacement is also the moment to correct curb height and specify glazing appropriate to the fall exposure.
Remove and Close the Opening
The daylighting is no longer needed, the unit has been a recurring problem, or interior lighting has been upgraded since it was installed. During a reroof, closing the opening removes a leak source and a fall hazard permanently.




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