Attachment 3 Photographs.pdf

This is Attachment 3 to a federal contract solicitation containing photographs and documentation of existing roof conditions for Building 2-3 at the North Central Soil Conservation Research Laboratory (NCSCRL), a USDA-ARS facility located in Morris, Minnesota. The photographs, taken in March 2025, document the current state of the roof requiring replacement and serve as reference materials for contractors developing bids and proposals. The attachment includes exterior roof views showing deteriorated conditions, ponding water, damaged membrane material, and compromised flashing, along with close-up detail photographs of roof penetrations, vents, and perimeter conditions. Interior photographs document the metal deck substrate, showing rust, corrosion, and water damage patterns.

The roof core samples extracted from three locations (north perimeter, center, and south perimeter) reveal the existing roof assembly composition, which includes membrane layers and substrate board over a metal deck with an underlying ½-inch layer of plywood or particle board that could not be fully retrieved during coring. The photographs collectively demonstrate significant roof deterioration including widespread ponding, material degradation, failed seals, rust on metal components, and evidence of water infiltration. Contractors are instructed to confirm all existing conditions and measurements prior to initiating project activities, indicating this attachment provides reference documentation rather than definitive specifications for the roof replacement work.