Expol Underfloor Insulation Solutions

Expol Underfloor Insulation is an iconic New Zealand solution that has been used to insulate under timber floors for over 25 years, creating warmer, healthier homes.

Product Range

Expol R1.4 UnderFloor Insulation

• Standard white rigid panel for normal New Zealand environments

• 60mm thick panels with 1200mm length

• Available in four standard widths: 360mm, 410mm, 470mm, 560mm

• Concertina cut on both sides for compression fit

• Contains recycled content and can be recycled

• Ideal for suburban and rural areas without extreme temperatures

Expol R1.8 Black UnderFloor Insulation

• Premium black rigid panel with graphite infusion

• Up to 30% more efficient than standard R1.4 version

• 60mm thick with 1200mm length

• Four standard widths to fit between standard joists

• Superior insulation for extremely cold and windy environments

• Should not be stored in direct sunlight

Expol R2.5 UnderFloor Insulation

• New Generation white underfloor panel

• Designed to meet new insulation standards introduced May 2023

• 100mm thick with 1200mm length

• BRANZ appraised product

• Four standard widths for fitting between joists

• Concertina cut for easy compression fit installation

Expol R3.1 Black UnderFloor Insulation

• Ultimate black underfloor insulation with graphite infusion

• Up to 24% more efficient than Expol R2.5

• 100mm thick with 1200mm length

• Superior R-value for maximum warmth

• Available in four standard widths

• Ideal for extremely cold and windy environments

Key Benefits

Performance Features:

• Reduces heat loss through floors in winter

• Prevents cold drafts coming through floorboards

• Creates warmer, drier, healthier homes

• Rigid panels that won't sag or settle over time

• Fire retardant properties for added safety

• Moisture resistant materials

Quality Assurance:

• 50-year performance warranty

• No maintenance or replacement required once installed

• Maintains performance for the life of the building

• BRANZ appraised products available (R2.5)

• Complies with Australian and New Zealand Standard AS/NZS 4859

• Manufacturing standard AS 1366 Part 3 1992 compliance