Crews began work on a building Thursday after heavy rain and standing water caused its roof to collapse.
The collapse is causing concern for people who live near Radio Electronic Equipment on Skain Avenue, near Downtown Lexington.
Skain Avenue, in front of the building, will likely be closed for at least a week while repairs are made.
When the roof collapsed Wednesday morning, water poured into the building.
Contractors spent most of Wednesday, as well as Thursday morning, drying out the building and cleaning up debris.
Code enforcement officials say the building has been condemned and now it's up to engineers to recommend where to go from here.
Lexington building inspectors are also expected to return to the site Thursday afternoon to monitor progress.