This certifies that Ivan Rudenko has successfully completed Tufdek certified installer training, demonstrating proficiency in substrate preparation, membrane installation, flashing, seam welding, drainage details, and finishing for walkable vinyl decking systems.
Exclusive Dealer Notice — Hawaii Top Level Construction (Rudenko LLC) is the authorized and exclusive Tufdek dealer and certified installer in Hawaii, providing manufacturer‑backed warranty support, certified installation, and access to premium Tufdek materials for projects across the islands.

We care about our customers and are committed to delivering top‑quality service. All plumbing work on our projects is performed by our licensed contractor SAMURAI PLUMBING LLC (CT‑38975). Their plumbing services include:

• Permit management and code‑compliant installations
• Skilled plumbers for repairs, replacements, and new installs (fixtures, supply/drain lines, water heaters, gas connections where licensed)
• Use of approved materials and manufacturer‑recommended practices
• Pressure/leak testing and documentation upon completion
• Workmanship warranty and follow‑up support for service issues
• Coordination with inspections and timely remediation if required

This certifies that Project Manager Dmytro Damrin has completed training on Schluter Fundamentals, including Moisture Management & Schluter Shower System, Tile Edge Protection & Finishing with Profiles, Uncoupling Principle & DITRA, Floor Warming with DITRA-Heat.

This certifies that Project Manager Dmytro Damrin has completed CTU Online Anytime Training Modules, Unit 1: Surface Preparation, covering substrate assessment, cleaning, leveling, moisture control and priming for tile and finish work.

This certifies that Project Manager Dmytro Damrin has completed Schluter Fundamentals training, covering moisture management and the Schluter shower system, tile edge protection and finishing profiles, the uncoupling principle and DITRA, and DITRA‑Heat floor warming.

This certifies that Project Manager Dmytro Damrin has successfully completed CTU Online Anytime Training Modules: Unit 2 - Tile Setting, covering substrate preparation, tile layout, cutting, setting techniques, and finishing.

This certifies that Project Manager Dmytro Damrin has successfully completed training CTU Online Anytime Training Modules: Unit 3 - Grouting on grout types, mixing, application, finishing, and troubleshooting.

This certifies that Project Manager Dmytro Damrin has completed CTU Online Anytime Training Modules: Unit 4 - Care & Maintenance, covering cleaning, routine maintenance, repair best practices and preservation techniques for finished surfaces and installations.

This certifies that Project Manager Dmytro Damrin has successfully completed training in the design, preparation, installation, flashing, drainage detailing, testing and maintenance of walkable PVC membrane systems for roof decks and balconies.

This certifies that Project Manager Dmytro Damrin has completed training in site safety systems, OSHA/industry best-practice application, risk assessment, hazard control, compliance, and incident response.

This certifies that Project Manager Dmytro Damrin has completed Modules 0–5 covering tile installation standards, substrate prep, layout and setting techniques, grout and waterproofing methods, quality control, and maintenance.

This certifies that Project Manager Dmytro Damrin has completed training in construction cost estimating, budgeting, bid preparation, cost control, and project cost management.

This certifies that Project Manager Dmytro Damrin has completed training in construction management fundamentals, project planning, scheduling, resource coordination, and site operations.

This certifies that Project Manager Dmytro Damrin has completed training on using ChatGPT for project management, including prompt engineering, task automation, documentation support, and AI-assisted decision tools.

This certifies that Project Manager Dmytro Damrin has completed the 30‑hour OSHA construction safety and health training, covering OSHA standards, hazard recognition, fall protection, PPE, electrical safety, excavation, and safety management.

This certifies that Project Manager Dmytro Damrin has completed the CPD course "Grout Basics," covering grout selection, mixing, application, finishing, and troubleshooting per Sika best practices.

This certifies that Project Manager Dmytro Damrin has completed Alison's course: Basics of Construction Project Management, covering project lifecycle, planning, scheduling, risk management, and stakeholder coordination.

This certifies that Project Manager Dmytro Damrin has completed the Alison Diploma in Carpentry Studies, covering carpentry fundamentals, woodworking techniques, joinery, material selection, and workshop safety.

This certifies that Project Manager Dmytro Damrin has completed the Alison Diploma in Building Construction Methodology, covering construction methods, project workflows, materials and structural principles, site coordination, and quality control.

This certifies that Project Manager Dmytro Damrin has completed the course AEC Daily: Technology and Trends in Sustainable Tropical Hardwoods covering sustainable sourcing, processing technologies, durability and finishing of tropical hardwoods, certification standards (FSC/PEFC), and design/applications best practices.

This certifies that Project Manager Dmytro Damrin has completed AEC Daily: Vinyl & Aluminum Railing Systems training on vinyl and aluminum railing systems, covering materials, design considerations, installation details, durability, and maintenance.

This certifies that Project Manager Dmytro Damrin has completed AIA CES Continuing Education: 0FS002 — Moisture Mitigation and Self‑Leveling Underlayment course 0FS002 on moisture mitigation strategies and the application of self‑leveling underlayments, covering assessment, preparation, installation techniques, and performance testing.