The I.F.R. Pontoon type is a floating internal roof and an emission-controlling device suitable for installation into all types of fixed roof storage tanks containing all types of crude and refined products. The purpose of the internal floating roof is to minimize vapour zone above the stored liquid. This system reduces emissions and evaporative losses of storage products, and less corrosive or oxidizing elements would be produced in the tank when removing the vapour zone from the fixed roof storage tanks, resulting in reduced air pollution and long term cost savings.


Designed and constructed in accordance with API Standard 650 Appendix H. The entire roof is in Aluminum. Its main interconnecting grid structure has a high strength-to-weight ratio, using contamination free and corrosion resistant Aluminum alloy tubular pontoons and extruded channel beams. These flotation pontoons and structural members provide maximum flotation and strength capable of withstanding loads generated by product turbulence and inspection personnel. Components can be fitted through existing manways and adjustable legs can accommodate sloped bottom tanks.


  • Reduces VOC emissions.
  • Maintenance free.
  • Compatible with all products stored, including 100% aromatics.
  • Lightweight span structure manufactured from Aluminum or stainless steel.
  • Easy to install.
  • Environment friendly.
  • According to API 650 Appendix H standard.
  • Lowest cost solution and short-term payback.
  • Designed for each specific tank.