Impervia vs Karndean: Which Flooring Is Better for Commercial Projects

Choosing the right flooring for a commercial project requires more than comparing finishes and aesthetics. This guide examines how Impervia and Karndean compare across performance, installation, lifecycle value and specification suitability.

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Quick Answer

If you’re comparing Karndean and Impervia for commercial projects, the best choice depends on your specification priorities. Both offer durable, waterproof flooring solutions, but Impervia is specifically designed for commercial performance, retrofit suitability, and installation efficiency.

With a rigid composite stone core, integrated acoustic backing, waterproof construction, and a specification-focused product range, Impervia is particularly well suited to office fit-outs, hospitality environments, student accommodation, and refurbishment projects where durability, speed of installation, and lifecycle value are critical.

Impervia vs Karndean Comparison Table

Feature	Impervia	Karndean
Waterproof
Built-in acoustic backing	Integrated IXPE backing	Varies by range
Commercial suitability	Designed for commercial environments	Available on selected ranges
Retrofit installation	Suitable over many existing subfloors	Depends on range
FloorScore certification
Herringbone options
Slip-resistant surfaces
Integrated underlay		Varies
Rigid composite stone construction		Varies by collection
Click installation options		Range dependent

Commercial Refurbishment Projects

Which Is Better for Commercial Fit-Outs?

For commercial fit-outs, the key considerations are programme speed, durability, acoustic performance and lifecycle maintenance.

Impervia’s rigid composite stone construction and integrated IXPE acoustic backing help simplify installation by reducing the need for additional underlay. The push-fit locking system also allows faster installation programmes compared with traditional glue-down flooring systems. Impervia flooring incorporates a rigid composite stone core with integrated acoustic backing and commercial-grade wear layers designed for high-traffic environments.

For fit-out contractors and design-and-build teams working to tight deadlines, reducing installation complexity can deliver significant programme advantages.

Which Is Better for Student Accommodation?

Student accommodation environments demand flooring that can withstand heavy daily use while remaining easy to maintain and cost-effective over its lifecycle.

Impervia is frequently specified for build-to-rent and residential development projects because it combines:

Waterproof performance
High durability
Low maintenance requirements
Acoustic benefits through integrated backing
Easy replacement of individual planks if required

For operators focused on reducing future maintenance and refurbishment costs, these characteristics can support long-term asset performance.

View York House Retrofit

Hospitality Restaurant Flooring White Stone Impervia® Marble Tile

Which Is Better for Hospitality Projects?

Hospitality environments place unique demands on flooring. Restaurants, bars, hotels and leisure venues require surfaces that can withstand constant footfall, spillages and frequent cleaning.

Impervia has been successfully used in hospitality environments where stain resistance, waterproof performance and slip resistance are essential. In the Caffè Di Milano project, Impervia’s marble-effect flooring was selected to provide the appearance of natural marble while offering improved slip resistance and durability in a busy hospitality setting.

For hospitality operators, this can help balance design requirements with operational practicality.

View Caffé Di Milano

Which Is Better for Refurbishment Projects?

Refurbishment projects often present installation challenges including uneven substrates, occupied buildings and compressed timelines.

Impervia was developed with retrofit projects in mind. Its rigid composite stone core and floating installation system make it particularly suitable for refurbishment programmes where minimising disruption is a priority.

For contractors, this can reduce installation complexity and help keep projects on schedule.

Durability Comparison

Durability is often one of the most important factors in commercial flooring selection.

Impervia features:

Commercial-grade wear layers
Waterproof construction
Stain resistance
Dent resistance
Dimensional stability
Temperature performance from -30°C to +68°C

The mineral-based core reinforced with fibreglass provides stability and durability for demanding commercial environments.

When evaluating durability, specifiers should review project-specific requirements including expected footfall, maintenance regimes and operational demands.

Installation Comparison

Installation efficiency can have a significant impact on overall project costs.

Impervia includes:

Integrated IXPE acoustic backing
Click-lock installation technology
No separate underlay requirement
No adhesive requirement on rigid core products
Suitable for many refurbishment applications

These features can help reduce labour requirements and simplify installation compared with more traditional flooring systems. Impervia’s integrated IXPE backing also provides acoustic benefits without requiring additional underlay materials.

Sustainability & Certification Comparison

Sustainability and compliance are increasingly important during specification.

Impervia provides:

FloorScore® certification
GREENGUARD Gold accreditation
Low VOC performance
Support for sustainability-led specifications
Ongoing commitment towards net-zero objectives

FloorScore certification supports indoor air quality requirements, while GREENGUARD Gold accreditation demonstrates compliance with stringent low-emission standards.

For architects and interior designers, these credentials can support compliance and sustainability objectives during specification.

Learn more about sustainability

Cost & Lifecycle Value Comparison

Initial material cost is only one factor when assessing flooring value.

Commercial projects should also consider:

Installation costs
Programme duration
Maintenance requirements
Expected lifespan
Replacement costs
Future refurbishment requirements

Impervia’s integrated backing, click installation system, and durability characteristics can contribute to lower lifecycle costs in many commercial applications.

For quantity surveyors and commercial teams, evaluating total ownership cost rather than purchase price alone often provides a more accurate assessment of long-term value.

Why Architects and Designers Choose Impervia

Impervia is increasingly specified for projects where performance certainty matters.

Key reasons include:

Rigid composite stone construction
Commercial-grade durability
Integrated acoustic backing
Waterproof performance
FloorScore and GREENGUARD Gold certifications
Herringbone, plank and tile formats
Retrofit suitability
Specification support for commercial projects

Most importantly, Impervia is designed around the needs of commercial specification rather than residential retail flooring trends.

View Impervia tile flooring options

Frequently Asked Questions

Is Impervia cheaper than Karndean?

Pricing varies depending on product range, project size and specification requirements. Rather than comparing upfront material costs alone, commercial buyers should assess installation costs, maintenance requirements and lifecycle value.

Is Impervia suitable for commercial projects?

Yes. Impervia is specifically designed for commercial environments including offices, hospitality venues, student accommodation, retail spaces and refurbishment projects. Its rigid composite stone construction and commercial-grade wear layers support long-term durability.

Does Impervia have sustainability certifications?

Yes. Impervia products are FloorScore® certified and GREENGUARD Gold accredited, supporting indoor air quality and sustainability objectives within commercial specifications.

Can Impervia be installed over existing floors?

Many Impervia installations are completed as part of refurbishment and retrofit projects. Suitability depends on existing subfloor conditions and project requirements, but the rigid construction and floating installation system can make retrofit installation more straightforward than some alternatives.

Request Samples and Technical Information

If you’re currently evaluating alternatives to Karndean for a commercial project, speak to the Impervia team for technical data, specification guidance and product samples.

Our team can help assess suitability for office fit-outs, hospitality projects, student accommodation developments and refurbishment programmes.

Request a sample

Design Flexibility for Commercial Projects

Disclaimer

This comparison is intended as a general guide for architects, designers, contractors and commercial decision-makers evaluating flooring solutions. Information relating to third-party products has been compiled from publicly available sources, including manufacturer websites, technical literature and product documentation available at the time of writing.

As product specifications, ranges and certifications may change over time, we recommend verifying all technical information directly with the relevant manufacturer before making a final specification decision.

Impervia makes no representation regarding products supplied by other manufacturers. All statements regarding Impervia products are based on current product specifications and technical data available at the time of publication.