daylight the joint

Translations
освещать помещение
They decided to daylight the joint to make the room appear larger and more welcoming.
Они решили осветить помещение, чтобы сделать комнату более просторной и гостеприимной.
Definitions
To 'daylight the joint' means to expose a hidden or covered joint (such as a seam, connection, or crack) to light, usually by removing material or obstructions. This is often done in construction, plumbing, or repair work to inspect, access, or work on the joint.