Renovation of an office development in Saint Louis, Missouri. Completed plans call for the renovation of a office development.

The Saint Louis Zoo is accepting proposals for the replacement of the Facility Management Office Roof. 1. Remove all existing roofing gravel, roof materials, insulation, and metal termination for rooftop units, as preparation for the installation of new roof system. Prepare deck as recommended by manufacturer to seal or remove residual asphalt before application of new insulation. Install new 1/8 inch tapered polyisocyanurate insulation with a 1.5 inch start at drains. All insulation layers to be secured with full 100% coverage of foam adhesive. 2. Contractor may choose to leave existing perimeter metal, and add additional blocking and 24ga. prefinished, coated, galvanized metal with at least 1/2 inch overlap. Or, all perimeter metal can be removed and all new 24ga. coated galvanized metal can be installed. 3. If existing perimeter metal is removed, this will be returned to the owner for recycling. 4. Insulation adhesive: Follow insulation manufacturer's recommendation to attach roof insulation to concrete substrate or to another insulation layer, full spread applied, low rise, two- component urethane adhesive. 5. Provide a fully adhered 60 mil TPO membrane to the new insulation per manufacturer's requirements. 6. Adhere new 60 mil TPO flashings at penetrations in bonding adhesive. 7. Remove any existing curb flashings. Install new, fully adhered flashings up and over the curb, or install new termination bar and skirt metal counter-flashing detailing as conditions dictate. 8. Provide walk pads per manufacturers requirements. 9. Remove all materials and debris from job-site prior to completion. All questions must be received by March 22, 2022 for issuing of addendums. All emailed questions and answers will be shared with all responders. Questions concerning this solicitation shall be submitted via email to Candace Bingham, Director of Procurement at cbingham@stlzoo.org.