B09_Solicitation_Amendment_AMD_2__Attach_1_Questions_and_Answers_0002.pdf

MORU Fire Suppression Requirement Questions and Answers Date: December 9, 2022

Questions Answers

1. Do you find the NFPA 13D classification to be acceptable as the project design criteria?

Yes, NFPA 13 D will be sufficient design criteria.

2. Work consists of: Delegated design and installation of a new fire suppression piping through the interior areas of the housing unit and make the connections to the existing water supply inside the house near the existing water heater. The system design shall be completed by a certified fire design engineer, and submitted to the NPS Mid‐West Region Structural Fire Program Manager for final approval. The new fire suppression will not require glycol‐based equipment. All exposed fire suppression piping and heads in interior areas will be covered in cove molding (Decro‐Shield System or equal). Fire suppression system must meet ICC International Fire Code, 2021 Edition NFPA‐13R Standard for the Installation of Sprinkler Systems in Low‐Rise Residential Occupancies, 2022 Edition (NFPA 13R) and provide proper coverage to interior areas. 13D only requires a 2 head calc with a 10‐ minute duration, 13R on the other hand requires a 4 head calc with a 30‐minute duration which will require a larger fire pump and water storage tanm.

13 D with 2 head 10 minute calc will be meet the requirement for R‐3 occupancy level.

3. The Contractor shall be responsible for purchasing a pre‐engineered system that meets the minimum water storage and suppression requirements of this scope of work and NFPA 13R. 13R requires a fully listed fire pump this is a true fire pump and tank with a duration time of 30 mins this will need its own dedicated power and require bury the tank or building a heated building to house a tank

Should be 13 D not 13 R

4. Sprinkler system criteria shall be based on Light Hazard occupancy classification, as defined in NFPA 13R

Should be 13 D for light hazard occupancy (R‐3) classification

5. A fire department connection is required.

6. Monitoring – 13R requires monitoring, is there currenting monitoring in place or do we does this need to be provided and incorporated in the bid price?

Monitoring Not Required.

MORU Fire Suppression Requirement Questions and Answers Date: December 9, 2022

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7. We want to clarify if we need a pump & tank or if we are going off of the existing water supply.

Both in stated in the specs. Please see attached from the specs stating both. We will need the water flow data either way.

Should utilize existing water supply, however the designer may need to add a pump and tank to meet 13D standard

8. What is the size of existing water supply to the building?

3/4 inch copper water supply line.