Lightweight. Corrosion-Resistant. Built for Performance.

At Prime Tank Systems, we design and manufacture clear-span Aluminium Geodesic Dome Roofs (AGDR) tailored to meet the exact specifications of each aboveground storage tank (AST), fully compliant with API 650 Appendix G and all international standards.

These structures offer an ideal solution for both new tank construction and retrofit applications—delivering superior emission control, environmental protection, and low-maintenance longevity.

Why Choose Prime’s Geodesic Dome Roofs?

• Custom Engineered:
  Each dome is designed specifically for its tank, maximizing fit, structural performance, and long-term reliability.

• Corrosion-Resistant & Maintenance-Free:
  Built from high-grade aluminum alloys (6000 & 5000 series), our domes do not require painting and resist corrosion throughout their lifespan.

• No Internal Columns:
  The clear-span structure eliminates the need for internal supports, reducing bottom corrosion, simplifying internal tank operations, and extending inspection intervals.

• Excellent Weather Protection:
  Prevents rainwater and snow accumulation that can sink floating roofs or contaminate product. Eliminates the need for complex roof drain systems.

• Reduced Emissions & Operating Costs:
  Dome-covered tanks help convert EFRTs into IFRTs, reducing vapour losses, meeting stricter emission standards, and minimizing long-term sealing and maintenance costs.

• Fire Safety Advantage:
  The aluminum dome’s continuous conductive surface acts like a Faraday cage—minimizing fire risks from lightning strikes.

• Fast, Non-Disruptive Installation:
  Delivered as a fully bolted kit, assembled on-site without welding, often without interrupting tank operations.

Engineering Highlights

• Triangular Lattice Framework:
  Utilizes lightweight extruded aluminum profiles forming a self-supporting structure. Designed with a height-to-diameter ratio of ~1:6 for optimal performance.

• Watertight Construction:
  Aluminium closure panels are secured with clamping bars and elastomeric gaskets—creating a fully sealed roof even under extreme weather conditions.

• Modular & Scalable:
  Compatible with most tank sizes, including retrofits of older steel cone/cone-supported roofs and conversions from EFRT to IFRT.

• Fully API Compliant:
  All components are manufactured from aluminium or stainless steel. No galvanized, painted, or dissimilar materials are used above the base brackets.

Standard Features Include:

• Free-vented apex with bird screen

• Access and manway assemblies

• Gauge hatch

• Center vent and skylight options

• Sliding or fixed support interfaces

• Optional insulation and weather protection systems

Whether you’re upgrading existing infrastructure or designing a new terminal, Prime Tank Systems’ Aluminium Geodesic Dome Roofs provide a high-performance, low-maintenance solution—ready to ship and install anywhere in the world.