Chrissie Walsh, Regional Head of Environmental Sustainability at GF Building Flow Solutions

For Chrissie Walsh, sustainability isn’t a standalone initiative or a set of targets tucked away in a report. It’s a way of thinking, one that shapes how decisions are made, how value is defined and how people across the organization engage with one another.

“Sustainability is at the heart of everything I do,” Walsh said. In her role, she has a rare vantage point — the ability to look across the full scope of the business, both internally and externally, and ask where sustainability can unlock opportunity. That curiosity often leads her to places beyond traditional environmental metrics and into conversations about efficiency, resilience, material use and long-term productivity.

For Walsh, sustainability is about possibility. “It’s turning insights into opportunity,” she explained. “Reducing risk, improving performance and enabling long-term productivity — all while actively reducing business impacts.”

What makes the work especially meaningful to Walsh is that progress rarely happens alone. “Almost every sustainability opportunity requires collaboration,” she said. “So I’m constantly engaging across departments and industry boundaries to connect ideas and align priorities.”

Redefining What We Value on the Jobsite

One of the most impactful shifts Walsh sees for the construction industry lies in how materials are viewed — particularly on the jobsite. Traditionally, value is assigned to what’s installed or built. Everything else is often treated as waste.

“That mindset leaves a lot on the table,” said Walsh.

From her perspective, real change happens when all jobsite materials are treated as valuable — including scrap and waste. Landfill avoidance strategies such as repurposing existing materials, participating in takeback programs and expanding the use of prefabricated services can significantly reduce environmental impact while also improving efficiency.

Equally important is what happens upstream. Walsh points to ongoing advancements in sustainable raw materials and increased recyclability within product design as critical levers for reducing the overwhelming volume of construction and demolition waste generated globally each year.

“When sustainability is integrated at the design stage, it enhances our capacity to make meaningful reductions before materials ever reach the jobsite,” she said.

Sustainability & Business Are The Same Conversation

At GF Building Flow Solutions, sustainability goals are not positioned as competing with operational or business priorities. Instead, they are treated as interconnected drivers of long-term success.

“We don’t look at sustainability as something separate from the work we’re already doing,” Walsh explained. “It’s about understanding how sustainability integrates within existing actions and daylighting the opportunities that already exist.”

By integrating sustainability into core business processes, conversations naturally occur across functions and management levels. This approach helps ensure environmental commitments are not siloed within one team but shared across the organization.

“When sustainability is embedded, it becomes an enabler,” Walsh said. “It helps guide better decision-making, rather than slowing it down.”

Moving the Industry Beyond First-Cost Thinking

Despite growing momentum around sustainability, Walsh acknowledged that significant barriers remain — many of them rooted in how value is measured.

“Across industries, one of the biggest challenges is shifting conversations away from first cost,” she said. While more sustainable pathways often deliver the greatest benefits over time, those advantages don’t always align neatly with short-term return-on-investment models.

Avoided costs, durability, operational savings and compounding benefits can be difficult to quantify up front. As a result, long-term value is sometimes overshadowed by initial investment.

To overcome this barrier, Walsh emphasizes the importance of education and data. Deepening understanding of whole-life carbon emissions, publishing case studies and expanding key performance indicators related to sustainable project outcomes all help build confidence in long-term decision-making.

“These tools help reframe the conversation,” she said. “They give people something tangible to point to when advocating for more sustainable choices.”

Why People Matter Most

Ask Walsh what most directly influences sustainability outcomes, and her answer is immediate.

“I say this a lot: Collaboration is the root of sustainability.”

Walsh believes fervently that meaningful integration of sustainability into projects requires engagement from a wide range of perspectives. Decisions made in isolation rarely lead to optimized performance or outcomes. Instead, the strongest and most durable results emerge when subject matter experts across disciplines are brought together early and intentionally.

“That broad buy-in makes a huge difference,” Walsh said. “When perspectives are integrated mindfully, the result is stronger, more resilient solutions.”

This philosophy extends beyond internal teams. Walsh sees stakeholder engagement — with clients, partners, trade organizations and communities — as one of the most rewarding aspects of her work.

“Leaving my company boundaries to engage across the spectrum of sustainable impact often uncovers shared value,” she said. Those conversations frequently lead to partnerships that benefit everyone involved and create pathways that may not have been visible otherwise.

Learning, Growth & Continuous Improvement

While tools and technologies are important, Walsh believes people development plays a critical role in advancing sustainability. Training, mentoring and professional growth help equip teams with the knowledge and confidence needed to ask better questions and challenge existing assumptions.

Sustainability, she noted, is not static. It evolves as materials improve, data becomes more accessible and best practices continue to emerge. Creating space for learning allows organizations to adapt and improve over time rather than chasing perfection from the outset.

“Continuous improvement is essential,” Walsh said. “Sustainability is a journey, and learning is what keeps that journey moving forward.”
 

Looking Ahead: Whole-Life Thinking

When Walsh looks to the future of sustainable construction, she’s most excited by trends grounded in whole-life carbon thinking. This includes mindful material selection, embodied carbon evaluation, systems-level design, and increased emphasis on reuse and deconstruction.

“When we view materials as valuable from the start — with landfill avoidance in mind — it changes how we choose,” she said. Durability, nontoxicity and reusability become central considerations, not afterthoughts.

These approaches challenge the industry to think beyond individual components and toward integrated systems that perform better over time.

Advice for New Leaders in Sustainability

For those looking to drive sustainability within their own corners of the construction industry, Walsh offered advice rooted in both experience and optimism.

“Be willing to experiment where feasible, collaborate wherever possible, and respect the ripple effects you create within the system you’re part of,” she said.

Progress doesn’t require sweeping change from day one. Small steps, intentional conversations and incremental shifts can build momentum. “Start small, celebrate your wins and let that boldness fuel you into the next step,” Walsh encouraged.

Above all, she emphasizes patience and persistence. “We’re all learning together,” she said. “Sometimes it starts with a simple intention or a conversation rooted in curiosity. Trust that it grows — and keep going.”