Amendment 1 - Questions & Answers.xlsx
XLSX spreadsheet 22 KB Posted
- Solicitation number
- 300000248036962
- Issued by
- Missouri
About this file
This is an Amendment 1 Questions and Answers document issued by the Missouri Department of Transportation (MoDOT) addressing specifications for a vehicle body exterior and insulation materials. The primary focus involves clarification on body construction requirements and insulation material deviations for what appears to be a transit or specialty vehicle procurement. MoDOT confirmed that fiberglass materials are acceptable for front and rear caps provided all Federal Motor Vehicle Safety Standards (FMVSS) requirements are met. The document does not specify quantities, response dates, due dates, site visits, bidder conferences, award dates, or contract terms.
MoDOT approved a deviation request from Micro Bird to substitute the specified polystyrene composite insulation with semirigid fiberglass wool insulation. The alternative material must meet a minimum R-value of R5 and comply with nontoxic and noncombustible standards consistent with transit safety requirements. The fiberglass wool insulation, installed at a thickness of R4.0 to R4.2 per inch, provides equivalent thermal performance while offering advantages including moisture prevention, visual inspection capability, and structural repairability. The document contains no pricing information, set-aside provisions, incumbent contractor references, funding sources, or other financial terms.
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Other files
| File | Type | Posted |
|---|---|---|
| MODOT 0000000281SL_4_SUPPLIER.pdf | ||
| WBC-II Flat Floor Plan.pdf | ||
| WBC-HH Flat Floor Plan.pdf | ||
| WBC-GG Floor Plan.pdf | ||
| Steel Cage Bus Specifications.docx | DOCX document | |
| Fiberglass Composite Bus Specifications.docx | DOCX document | |
| Amendment 2 - Questions & Answers.xlsx | XLSX spreadsheet |
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Text version
Amendment 1
| REQUIREMENT | QUESTIONS | MoDOT Response: | |
| BODY EXTERIOR | The body shall be a steel cage manufactured out of a minimum of 16-gauge metal integrally mounted to the chassis and conform structurally to FMVSS. The outside layer of the body shell shall be of a metal construction (not fiberglass) | Exterior roof and side panels are made of aluminum. The front and rear cap are made of fiberglass to allow for a greater structural flexibility while maintaining the highest safety standards. Please confirm this configuration is acceptable. | The front and rear cap can be made of fiberglass, as long as all FMVSS requirements are met. |
| INSULATION | Shall consist of a polystyrene composite placed in the ceiling and side walls with a minimum R Value of 5 and shall be nontoxic. A polyurethane-foam insulation material or 1” honeycomb resin is also acceptable if providing the same R Value as stated above. Batt insulation is not acceptable. | Micro Bird respectfully requests a deviation from the specified insulation material to allow the use of fiberglass wool insulation installed within the vehicle’s roof and side‑wall body structural bows, as well as the front and rear caps. This semi‑rigid fiberglass wool insulation provides a thermal resistance of approximately R‑4.0 to R‑4.2 per inch and is installed at a thickness sufficient to achieve a minimum overall R‑value equal to or greater than R‑5, thereby meeting the performance intent of the specification. The material is non‑toxic, manufactured with a formaldehyde‑free binder, non‑combustible, and compliant with applicable FMVSS flammability requirements, with tested flame spread and smoke development values consistent with transit safety standards. Installation within the structural bows allows secure retention, continuous insulation coverage, and avoids interference with wiring, drainage paths, or structural components. Compared to spray‑applied foam or rigid composites, this approach mitigates lifecycle risk by preventing moisture entrapment, allowing visual inspection, and enabling repair or replacement without damage to the body structure, while delivering proven long‑term thermal, acoustic, and durability performance consistent with Missouri DOT operational expectations. | MoDOT accepts the deviation from the specified insulation material to allow the use of fiberglass wool insulation installed within the vehicle’s roof and side‑wall body structural bows, as well as the front and rear caps. This semi‑rigid fiberglass wool insulation provides a thermal resistance of approximately R‑4.0 to R‑4.2 per inch and is installed at a thickness sufficient to achieve a minimum overall R‑value equal to or greater than R‑5 |
File details come from the government source that posted it. Updated .