At first glance, the solar shading market seems like a technical story about fabrics, systems, and installation. But a closer look reveals a field shaped by tensions between aesthetics and performance, between cost and sustainability, and increasingly between traditional materials and new ecological demands. Within that landscape, GreenShade — a product by the Belgian company Flocart — positions itself in a remarkably different way. Not by introducing something radically new, but by bringing a forgotten material back into focus.
Indoor versus outdoor: not a battle, but a balance
The classic division in solar shading remains intact: indoor and outdoor solutions, each with its own logic. Exterior shading acts as a buffer against heat and cold and performs strongly in terms of energy efficiency. Interior shading, on the other hand, plays a more subtle role. In theory, it can even insulate better, thanks to the static layer of air trapped between the window and the fabric — provided the system is properly sealed.
But the debate has long moved beyond insulation alone. Interior shading is gaining ground in other areas, such as acoustics and visual comfort. Visual comfort is especially important in office environments. As our eyes are constantly stimulated by screens, darker shades tend to create a sense of calm, while lighter colours reflect more light. The balance between the two strongly influences how pleasant a space feels.
Aesthetics as the breaking point
For architects, the key issue lies elsewhere. Exterior constructions can disrupt the rhythm of a building’s architecture, particularly in contemporary designs where clean lines and minimalism dominate. The taller and more complex the architecture becomes, the harder it is to integrate outdoor shading without visual compromise.
Interior solutions provide an answer to that challenge. They are more discreet, more flexible, and easier to integrate into the design. It is also worth noting that interior shading forms an integrated part of a building itself — unlike curtains, which are removable and typically added by decorators after project completion.
PVC under pressure
For years, the solar shading market was dominated by polyester and PVC — usually a fiberglass core coated with PVC — due to their robustness and favourable price-performance ratio. But that dominance is increasingly under pressure. PVC raises growing ecological concerns, as well as questions regarding indoor air quality. Volatile organic compounds (VOCs) — comparable to the smell of a new car — are becoming a growing point of attention. In addition, the post-treatment processes PVC requires to become fire-retardant and antibacterial weigh heavily on its sustainability profile.
This is where GreenShade introduces an alternative: fiberglass.
Fiberglass: from niche to necessity
Fiberglass is not a newcomer. On the contrary, the material has existed for decades but faded into the background with the rise of cheaper and easier alternatives. Today, it is making a comeback — not out of nostalgia, but out of necessity.
The reason is simple: the demands of sustainable construction are evolving rapidly. Architects and clients are looking for materials that comply with stricter standards, such as the avoidance of PVC, halogens, and PFAS. Fiberglass fits perfectly within that framework. It is naturally fire-retardant and requires no chemical additives to meet regulations.
What was once considered fragile and outdated suddenly appears to be a “rough diamond.”
Green building as a catalyst
The rise of green building is pushing the entire sector forward. Certifications play a key role in this evolution, although confusion remains common. Different labels assess different criteria, making the landscape difficult to navigate for clients and developers.
GreenShade explicitly embraces a cradle-to-cradle approach, covering the entire lifecycle of a product — from raw material to reuse. It is an ambitious framework that goes beyond simple material analysis and forces companies to rethink both their processes and supply chains.
The paradox of innovation
What makes GreenShade particularly interesting is the paradox on which it is built: responding to new demands with an old product. Fiberglass itself is not revolutionary, but the context in which it is now positioned certainly is.
There are also practical advantages: dimensional stability, no stretching, resistance to temperature fluctuations, and availability in wider formats that allow seamless applications. Small details perhaps, but details that make a significant difference in large-scale projects.
Price as a secondary concern
What stands out in this story is how little emphasis is placed on price. The cost of the fabric itself turns out to be marginal within the total investment. The real expenses lie in the systems, installation, and integration into the building.
That shifts the conversation from “What does it cost?” to “What does it deliver in the long term?” Sustainability, performance, and aesthetics increasingly outweigh purely budget-driven thinking.
A market in transition
The solar shading sector is far from static. It is evolving alongside broader trends in architecture and construction: becoming more sustainable, more integrated, and more critical of materials.
GreenShade does not respond to these shifts loudly or aggressively. Instead, it positions itself at a crossroads — between past and future, between technology and ecology.
Perhaps that is precisely why it works. Sometimes progress is not about building something entirely new, but about looking differently at what already existed.
