Full-contact deck
Panel layout is developed to keep the deck in contact with the stored liquid over the intended operating area.
Engineered products
EZroof HC
Full-contact aluminium internal floating roof
A full-contact IFR designed to reduce the continuous vapour space beneath the deck and make the deck, seams, fittings, buoyancy and rim seal work as one emission-control system.
Design intent
Reduce vapour formation at the source.
A true full-contact roof controls emissions differently from a skin-and-pontoon roof. The deck is intended to remain in direct contact with the liquid over essentially the usable deck area, greatly reducing the continuous vapour space beneath the roof.
That changes the engineering question. Seam width, local discontinuities, penetrations, rim space and any non-contact zones become more important than a generic roof label. EZroof HC is therefore configured around the actual emission path as well as structural and buoyancy performance.
In practice
Roof details in practice
Archive product photography is used to show the physical deck and fittings rather than rely only on renderings. Current EZroof HC details are project-specific.
Engineering priorities
What the design has to get right.
Tight panel system
Panel-to-panel connections and gasketed sealing details minimise exposed liquid area and uncontrolled vapour paths.
Buoyancy & structure
Buoyant area, openings, local loads and the roof structure are checked together rather than independently.
Seal & fitting integration
Rim seal, wells, legs, anti-rotation, vents and penetrations are part of the emissions design.
Scope
Typical engineered configuration
- Modular aluminium full-contact panel deck
- Project-engineered panel connection and sealing system
- Structural extrusions, stainless-steel fasteners and conductive bonding details
- Anti-static and anti-rotation assemblies
- Rim-seal integration and project-specific foam-dam interface
- Manways, wells, roof vents, support legs and other required penetrations
Inputs
Application inputs
- Tank diameter, height, shell roundness and measured rim-space range
- Stored product, vapour pressure, temperature and material compatibility
- Filling / emptying rates, pigging events and potential gas slugs
- Required operating and maintenance positions
- Existing columns, gauge poles, mixers, vents and roof obstructions
- Emission target, fire-protection philosophy and applicable project standards
Standards & project basis
Designed from the application, then checked against the code.
Typical project engineering references include API 650 Appendix H and applicable material, fire-protection and hazardous-area requirements. Recent full-contact project configurations have used aluminium materials to EN 485 / EN 754 / EN 755 families and project-specific NFPA / ATEX requirements; the final basis is always defined per tank.
Related products
Part of the same tank system.
Application review
Start with the tank, the service and the result you need.
Emission Zero can review the application before turning it into a product configuration or project specification.