Green Mark 2021 and Interior Material Selection

When BCA launched Green Mark 2021, it did not simply update the previous framework — it fundamentally restructured how buildings in Singapore are assessed for sustainability. For architects, interior designers, and specifiers, the implications run deep. Interior material selection, once treated as a secondary concern in green building compliance, now sits closer to the centre of the conversation. The shift from prescriptive checklists to a performance-based, whole-building approach means that every material choice — from flooring to wallcoverings to upholstery fabric — can meaningfully move the needle on a project’s sustainability score.

At Goodrich, we have spent the past few years working closely with specifiers navigating this transition. What we are seeing is a market that is still catching up to the framework’s demands, particularly when it comes to understanding how interior finishes contribute to — or detract from — Green Mark outcomes.

What Changed with Green Mark 2021

The previous Green Mark framework, while effective in driving Singapore’s green building ambitions, operated largely on a points-based checklist. Specifiers could achieve compliance by ticking boxes — installing energy-efficient systems, meeting minimum recycled content thresholds, or selecting products with a recognised eco-label. The approach worked, but it also allowed projects to achieve certification without addressing sustainability holistically.

Green Mark 2021 replaced this with a structure built around three pillars: Climatic Response, Building Performance, and Advanced Green Efforts. Within these pillars, the framework introduces a “Super Low Energy” benchmark that targets net-zero energy buildings and places far greater emphasis on embodied carbon, indoor environmental quality (IEQ), and whole-life sustainability.

Key Structural Differences

Several changes are directly relevant to interior material selection:

• Embodied carbon accounting: Green Mark 2021 introduces requirements around whole-life carbon, meaning that the carbon footprint of materials — from extraction through manufacturing, transport, installation, and end-of-life — is now part of the assessment. This applies to interior finishes, not just structural elements.
• Indoor environmental quality: The IEQ section has been expanded, with more granular requirements around air quality, thermal comfort, acoustics, and biophilic design elements. Material emissions — particularly VOCs from flooring, wallcoverings, and adhesives — are scrutinised more rigorously.
• Sustainable products and construction: The framework rewards the use of products with Environmental Product Declarations (EPDs), third-party eco-certifications, and verified recycled content. Generic green claims no longer suffice.
• Health and wellbeing: Green Mark 2021 aligns more closely with international wellness standards, including elements drawn from the WELL Building Standard. This brings interior material health — low-emission finishes, antimicrobial properties, acoustic performance — into sharper focus.

How Interior Materials Contribute to Green Mark Credits

The notion that interior finishes are cosmetic choices with limited sustainability impact is outdated. Under Green Mark 2021, the materials applied to floors, walls, and furnishings contribute to multiple credit categories. Understanding where these contributions lie is essential for specifiers aiming to maximise a project’s Green Mark score.

Flooring and Embodied Carbon

Flooring typically represents one of the largest surface areas in any commercial interior. The embodied carbon of a flooring product — the sum of emissions generated during raw material extraction, manufacturing, transport, installation, and eventual disposal — varies enormously between product types. Carpet tiles manufactured with recycled content and designed for take-back programmes, for instance, carry a materially different carbon profile from virgin-material sheet vinyl installed with solvent-based adhesives.

Under Green Mark 2021, specifiers who can demonstrate lower embodied carbon through verified EPDs gain a tangible advantage. Products with third-party EPDs conforming to ISO 14025 and EN 15804 provide the documentation the framework requires. In our experience, projects that integrate EPD-verified flooring early in the design process find it far easier to meet whole-life carbon targets than those that treat flooring selection as a late-stage decision.

Wallcoverings and Indoor Air Quality

Volatile organic compounds remain one of the most significant indoor air quality concerns in newly fitted commercial spaces. Wallcoverings, along with the adhesives used to install them, are a primary source of VOC emissions in interior environments. Green Mark 2021’s IEQ criteria set stricter thresholds for post-occupancy indoor air quality, which means that specifiers must pay attention not only to the wallcovering product itself but to the entire installation system.

Low-VOC and zero-VOC wallcoverings are now effectively a baseline requirement for any project targeting Green Mark certification. Beyond emissions, wallcoverings that incorporate recycled content or are manufactured using renewable energy contribute additional credits under the sustainable products category.

Fabrics and Material Health

Upholstery fabrics, curtain materials, and acoustic textiles are often overlooked in green building discussions, yet they contribute to both IEQ and sustainable products credits. Fabrics treated with harmful flame retardants or antimicrobial chemicals that off-gas over time can undermine a project’s indoor air quality performance. Conversely, fabrics manufactured with recycled polyester, natural fibres, or certified low-emission treatments support multiple Green Mark categories simultaneously.

The framework’s alignment with health and wellbeing principles also means that acoustic performance — a property directly influenced by fabric and carpet choices — is now a more explicit consideration. Specifying acoustic fabrics and carpet tiles with verified noise reduction coefficients contributes to the IEQ score.

What Specifiers Should Look For

Navigating Green Mark 2021 compliance at the material level requires specifiers to move beyond brand familiarity and price-per-square-metre comparisons. The framework rewards specificity, documentation, and verified performance claims. Here is what matters most.

Environmental Product Declarations

EPDs are the currency of credibility under Green Mark 2021. A valid EPD, conforming to ISO 14025, provides a standardised, third-party verified summary of a product’s environmental impact across its life cycle. It covers embodied carbon, resource depletion, water use, and waste generation. Products with EPDs give specifiers the documentation they need to demonstrate Green Mark compliance without ambiguity.

Not all EPDs are equal. Programme operators vary in rigour, and the scope of the EPD (cradle-to-gate versus cradle-to-grave) affects its usefulness. Specifiers should look for EPDs that cover at least the production stage (modules A1-A3) and preferably the full life cycle including end-of-life (module C) and potential benefits from recycling (module D).

Low-VOC Certification

For any interior finish — flooring, wallcovering, or fabric — VOC emission data is essential. Look for products tested to recognised standards such as ISO 16000, ASTM D5116, or the Singapore Green Label Scheme’s emission criteria. Third-party certification from bodies such as SGBC, Greenguard, or Indoor Advantage provides the independent verification Green Mark assessors require.

Recycled and Renewable Content

Green Mark 2021 awards credits for products incorporating recycled content, with higher credits for post-consumer recycled material. Carpet tiles with recycled yarn, vinyl flooring with recycled PVC content, and fabrics made from recycled polyester all contribute. Specifiers should request material content declarations from suppliers and verify claims against ISO 14021 (self-declared environmental claims) or, preferably, third-party recycled content certification.

Durability and Service Life

The whole-life approach of Green Mark 2021 means that a product lasting 20 years has a fundamentally different environmental profile from one requiring replacement every 7 years. Durability is not merely a cost consideration — it is a sustainability metric. Products with longer warranted service lives, higher abrasion resistance ratings, and proven performance in Singapore’s tropical climate conditions offer better whole-life outcomes.

Common Pitfalls in Green Mark Material Specification

In our work with architects and interior designers across hundreds of commercial projects, we see several recurring mistakes when teams attempt to align interior material choices with Green Mark 2021 requirements.

Late-Stage Material Selection

The most frequent issue is treating interior finishes as an afterthought. When flooring and wallcovering decisions are deferred until the tail end of the design process, the opportunity to optimise for Green Mark credits is largely lost. The framework rewards integrated design — where material sustainability is considered alongside spatial planning, mechanical systems, and envelope performance from the outset.

Relying on Generic Green Claims

Marketing terms such as “eco-friendly,” “sustainable,” and “green” carry no weight under Green Mark 2021 without supporting documentation. We regularly encounter specification documents that reference a product’s sustainability credentials in general terms but lack the EPDs, test reports, and certifications that assessors require. The remedy is straightforward: request specific documentation from suppliers before specifying.

Ignoring the Installation System

A low-VOC flooring product installed with a high-VOC adhesive undermines the entire IEQ strategy. Green Mark 2021 assesses indoor air quality holistically, which means that adhesives, primers, sealants, and underlay materials all count. Specifiers should evaluate the complete installation system, not just the finish product. Click-lock or loose-lay flooring systems that eliminate adhesives entirely can be a pragmatic solution.

Overlooking Maintenance Impacts

The cleaning and maintenance regime for an interior finish has environmental implications over the building’s operational life. Products requiring harsh chemical cleaners, frequent stripping and recoating, or specialised treatments carry a higher operational environmental footprint. Specifying products designed for low-maintenance care — such as PUR-coated vinyl flooring or stain-resistant carpet tiles — aligns with Green Mark 2021’s whole-life philosophy.

Goodrich’s Approach to Green Mark Compliance

With over four decades in the Singapore market, Goodrich has evolved alongside the country’s green building ambitions. We were supplying interior finishes long before the first Green Mark framework was introduced, and we have adapted our product portfolio and technical support services to meet each successive iteration of the standard.

Our approach is built on three principles that we believe serve specifiers well in the Green Mark 2021 context.

Documentation-Ready Product Lines

We maintain a portfolio of flooring, wallcovering, and fabric products from manufacturers who provide comprehensive environmental documentation — EPDs, VOC test reports, recycled content certifications, and material health declarations. When a specifier selects a Goodrich product for a Green Mark project, the supporting documentation is available, not something that needs to be chased across international supply chains.

Technical Support for Specifiers

Green Mark 2021 compliance is not something that can be resolved by a product data sheet alone. Our commercial team works with architects and project consultants to identify which products in our range best align with a project’s specific Green Mark strategy — whether the priority is embodied carbon reduction, IEQ performance, or sustainable products credits. This is not a sales exercise; it is a technical collaboration that we believe adds genuine value to the specification process.

Continuous Portfolio Development

The sustainability credentials of interior materials are improving year on year. Manufacturers are investing in recycled content, cleaner production processes, and circular economy models such as carpet tile take-back programmes. We actively track these developments and update our Singapore portfolio accordingly, ensuring that specifiers have access to the most current, highest-performing options available.

Looking Ahead: Green Mark and the Singapore Market

Green Mark 2021 is not the end point — it is a platform. BCA has signalled that future iterations will push further towards net-zero carbon buildings, circular economy principles, and mandatory embodied carbon disclosure. For interior material specifiers, the direction of travel is clear: sustainability documentation, whole-life thinking, and verified environmental performance will become non-negotiable requirements, not optional enhancements.

The projects being designed today under Green Mark 2021 are setting the benchmark for what comes next. Specifiers who invest in understanding the framework’s material requirements now — and who build relationships with suppliers capable of supporting that understanding — will be better positioned for every iteration that follows.

What we are seeing across the Singapore market is a growing sophistication in how interior materials are evaluated. The conversation has moved beyond “Is this product green?” to “What is the verified embodied carbon per square metre, and how does it compare to the alternatives?” That is a conversation we welcome, and one we are equipped to support.

Speak to our commercial team about your next project. Request a quotation or reach out for project-specific guidance on Green Mark 2021 material compliance.