WHY RTI?
RTI Sealant Specialists, Inc. is a commercial specialty subcontractor delivering joint sealant, waterproofing, expansion joint, firestopping, and protective coating systems on complex, schedule-sensitive projects.
With over 65 years of combined RTI experience and continuous operations dating back to the 1960s, RTI is a woman-led, family-operated business built on long-term accountability, workforce stability, and relationship-driven execution.
RTI is trusted on projects where envelope failure is not an option and where clean close-out and first-time compliance matter.
RTI partners with general contractors to reduce envelope-related risk before it becomes rework, delay, or post-handover defects.
This approach is built around:
- Early coordination and system understanding
- Clear scope definition and accountability
- Disciplined execution in high-exposure conditions
RTI’s role is not limited to installation, it is to support project teams in delivering predictableperformance and smooth close-out on envelope-critical scopes.
Reduced Envelope Risk
RTI installs systems designed to prevent leaks, failures, and long-term defects before they become claims or warranty issues.
Schedule Protection
RTI regularly executes late-stage and close-out scopes without disrupting inspections, occupancy, or turnover milestones.
First-Time Compliance
Firestopping and waterproofing scopes are installed to meet specifications and code requirements, supporting first-time inspection approval.
Clear Scopes, Fewer RFIs
RTI emphasizes defined inclusions and exclusions, minimizing gray areas, coordination issues, and downstream disputes.
RTI provides early-stage input by reviewing sealant, waterproofing, and expansion joint systems to identify constructability and exposure risks, particularly in high-risk areas such as:
- Below-grade conditions
- Elevator pits
- Movement and transition joints
Early review supports better sequencing, clearer scopes, and reduced downstream issues during construction.
RTI’s workforce stability supports consistent execution and accountability across projects. This continuity allows RTI to deliver reliable results, maintain installation quality, and support repeat general contractor relationships over time.
RTI’s relationship-driven approach emphasizes:
- Long-term accountability
- Consistent field execution
- Clean, predictable close-outs
RTI maintains certifications and affiliations that support technical execution and compliance, including:
- Supplier Gateway Certified — Small Business, Woman-Owned Enterprise (USA)
- Certified Installer of MM Expansion Joint Systems
- Participant in Watson Bowman ACME FTA Program and Performance Excellence Program
- Firestop Contractors International Association
- Associated Minority Contractors of Arizona
Business and compliance information is available upon request.
RTI is frequently rehired by general contractors who value:
- Consistent performance
- Reduced post-handover risk
- Clear communication and coordination
- Clean close-outs without rework or delays
These repeat relationships reflect RTI’s focus on execution, accountability, and trust.
Partner Early to Reduce Risk
Early coordination helps protect schedules, inspections, and long-term envelope performance