ALLENTECH Skin and Pontoon Internal Floating Roof Hold a reputation worldwide for quality and dependability

Pontoon spacing not to exceed 10’

Heavier wall material [.064”] and more corrosion resistant AL5052 alloy available if customer and/or product service dictates.

Pontoon testing procedure

Min 20 psi [136 kPa] with leak detection fluid.

Pontoon end cap design

Includes reinforcing gussets at top and bottom of cap & removable, resealable test port.

Specific Gravity

Design specific gravity is 0.7 regardless of product SG.

Surface sheet thickness

Minimum .020” – increased thickness available (.025” thick - 5’ width only) if customer and/or product service dictates.

Stiffness

Main beam spacing does not exceed 6’ [1829 mm]

Design of the surface sheet support/clamp

Provides suitable sealing mechanism

Rolled Shape

Perimeter is an extruded, rolled shape, capable of supporting the loads of the seal system.

Stainless Steel and Aluminum Fasteners

All fasteners are stainless steel or aluminum. No plated fasteners used.

Seal Design

Seal design based on product service and longevity

IFR Custom Designed

Custom Designed for customer application

IFR designed to meet 500lb loading criteria

750lb and 1000lb versions available

Components pre-fabricated to the maximum extent to ensure quality and ease of installation

• Perimeters rolled to radius of tank and pre-drilled for seals.
• Beams and clamps pre-drilled and cut to length required.
• Special pontoon lengths determined during design stage.
• Sheeting panels at perimeter are cut to radius of IFR.
• Seal plates fabricated in shop based on information collected by crew on first day at jobsite.
• Cable stops for high and low pin settings are shop installed prior to shipment of IFR.