The Sandborn IFR not only provides a high efficiency floating roof system but also offers a feature no other floating roof system provides. One of the principal design features of the Sandborn IFR is the closed-cell polyurethane module core. The foam core is the primary method of creating floatation (ie: buoyancy) instead of using air-filled compartments like other IFR systems. The closed-cell foam core of the Sandborn IFR modules is impervious to liquids and vapor, resulting in a virtually unsinkable floating roof. This fact is backed up by years of field service and an industry exclusive 10 year anti-sinking warranty.
In addition to providing buoyancy, the closed-cell polyurethane foam core also gives the Sandborn IFR an R20 insulating value. The added insulation of the Sandborn IFR lowers heating costs for winter service tanks and also lowers the liquid surface temperature during the hot summer season, resulting in a lower vapor pressure and lower emissions.
Another unique feature of the Sandborn IFR system is the ZetabonTM coated modules. ZetabonTM is a co-polymer coating used to protect metal elements from corrosion and decay from chemical exposure. The Sandborn IFR is the only system which provides a protective coating on its aluminum skinned deck modules to prevent oxidation and protect your investment.
When not floating directly on the product surface, the Sanborn IFR is held above the tank floor by adjustable height suspension cables from the tank roof (either steel cone or aluminum domes) or by optional leg supports for retrofit installations. Each Sandborn IFR system can be installed through a standard 24” or even a 20” API manway, requiring no shell cutouts or modifications. | 
