🧰 Core Service Areas

1. New Fire Sprinkler Installation Support

Our installers work under the supervision of licensed contractors to build fully compliant sprinkler systems in commercial, industrial, and multifamily structures.

Detailed tasks include:

• Measuring, cutting, grooving, and threading pipe (Schedule 10–40 black steel or CPVC).

• Installing main lines, cross mains, branch lines, and drops per approved shop drawings and NFPA 13 Table 10.2.6.1.1 spacing requirements.

• Mounting and aligning sprinkler heads (upright, pendent, sidewall, concealed) to ensure correct orientation and coverage per NFPA 13 Chapter 10.

• Hanging and supporting pipe using NFPA 13 §9.2–approved hangers and seismic bracing methods.

• Installing pressure gauges, check valves, test drains, inspector’s test connections, and auxiliary drains per NFPA 13 §8.16.2.

• Ensuring proper slope on branch lines and mains (minimum 1 in. per 12 ft on wet systems, ¼ in. per 10 ft on dry systems per NFPA 13 §8.16.2.3).

• Labeling all valves, mains, and drain lines per NFPA 13 §28.1.
  
  

Example technical standards we follow:

• Performing hydrostatic pressure tests (200 psi × 2 hours minimum per NFPA 13 §25.2.1).

• Conducting air pressure tests (40 psi × 24 hours on dry systems per NFPA 13 §25.2.2).

• Flushing overhead mains and branch lines until clear of debris per NFPA 13 §16.14.1.1.

• Performing main drain tests and documenting pressure differentials to verify supply performance (NFPA 25 §13.2.5.1).
  
  

OSHA safety compliance:

• Fall protection for elevations > 6 ft (29 CFR 1926.501).

• Proper use of aerial lifts and scaffolds (29 CFR 1926.453 & .451).

• Hot-work permits and fire-watch requirements during welding or torch cutting.

• PPE: hard hats, eye/ear protection, gloves, and safety-toe footwear.
  
  

2. Retrofit, Remodel, and Tenant Upfit Support

We specialize in working within existing or occupied buildings where systems must stay partially active during construction.

Typical retrofit tasks include:

• Controlled drain-down and isolation per NFPA 25 §15.5.2.

• Selective demolition and rerouting of existing piping systems.

• Replacing outdated heads to meet Quick-Response or Residential (RFII) type requirements per NFPA 13 §19.3.

• Coordinating around ceilings, electrical trays, and ductwork with minimal disruption.

• Temporary fire-watch coverage and post-installation reactivation testing.

Common applications: high-rise conversions, tenant fit-outs, hospitals, and school retrofits.

3. System Testing, Inspection & Commissioning Support

We assist licensed contractors during inspection and final acceptance testing.

Testing and commissioning activities:

• Hydrostatic tests: 200 psi for 2 hours per NFPA 13 §25.2.1.

• Air pressure tests on dry-pipe systems: 40 psi × 24 hrs per NFPA 13 §25.2.2.

• Trip-testing dry valves to ensure operation within 60 seconds (NFPA 13 §26.2.3.5).

• Main-drain tests for supply verification per NFPA 25 §13.2.5.1.

• Flow tests at inspector’s test connections verifying alarm activation per NFPA 13 §28.2.3.

• Fire-pump flow tests (0%, 100%, 150% rated capacity) per NFPA 20 §14.2.6 under contractor supervision.

• Recording static/residual pressures and confirming alarm/supervisory device operation.
  
  

4. Prefabrication, Material Handling & Site Logistics

Our prefabrication and field-support services help contractors maintain job-site efficiency:

• Cutting, grooving, and threading pipe sections per fabrication lists.

• Handling fittings, hangers, and valves using OSHA 1910.178–certified forklift operators.

• Organizing staging areas, labeling assemblies, and maintaining safe walkways.

• Assisting in on-site QA/QC checks before delivery to installation zones.
  
  

5. Final Trim-Out, Punch-List & Project Closeout

Once system testing and inspection are complete, our teams provide detailed finishing work:

• Installing escutcheons, cover plates, and identification signage per NFPA 13 §28.2.4.

• Touch-up painting of exposed piping (red, black, or per AHJ requirements).

• Tagging control valves, risers, and drains for final inspection.

• Conducting post-cleanup and site restoration per OSHA 1926.25.

• Assisting during AHJ walk-throughs and system acceptance documentation.
  
  

🏗️ Typical Project Types

• Multifamily & Apartment Buildings – concealed-head CPVC systems, riser-room coordination, and pressure testing in occupied environments.

• Warehouses & Distribution Centers – ESFR systems, seismic sway bracing, and large-diameter mains (8"–12").

• Data Centers & Critical Facilities – pre-action and double-interlock systems with integrated clean-agent suppression.

• Hospitals & Healthcare – infection-control protocols, isolation zones, and dust-containment barriers.

• Educational & Government Buildings – retrofits, expansions, and schedule-driven construction.

• Industrial & Manufacturing Plants – deluge, foam-water, and high-temperature applications.

• Office & Retail Developments – aesthetic trim-outs with quick-response concealed heads.
  
  

🌎 Service Region

Headquartered in North Carolina, R.R. M.A. Construction LLC provides labor support across:

• North Carolina

• South Carolina

• Virginia

• Georgia

• Tennessee
  
  

Crews can mobilize rapidly for projects throughout the Southeast.

🛠️ Why Contractors Partner With Us

✅ OSHA-trained, NFPA-savvy field personnel.
✅ Experienced with wet, dry, pre-action, deluge, and ESFR systems.
✅ Flexible short-term or long-term labor options.
✅ Proven record of safety and reliability on major commercial projects.
✅ Strong references—including work supporting Microsoft facilities.

📞 Let’s Work Together

Need qualified sprinkler installers or helpers for your next project?
Contact R.R. M.A. Construction LLC today:

📧 rrma827@gmail.com
📱 252-373-2965
🌐 https://www.rrmaconstructionllc.com

All field work must be performed under the supervision of duly licensed fire-sprinkler contractors in full compliance with NFPA 13, NFPA 25, and OSHA construction standards.