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At Fluxiss, we had the opportunity to work on a fascinating project—a modern, energy-efficient residential dwelling in Theux, Belgium. It’s exactly the kind of challenging, sustainable design that perfectly showcases the expertise we offer at Fluxiss Engineering.

At Fluxiss, we provide comprehensive MEP Engineering & Design Services for innovative construction projects across the globe. Our focus is on delivering detailed, integrated solutions that prioritize sustainability and efficiency, whether we’re working for a specific company or supporting a nation’s green building initiatives.

Belgian Sustainable Residential Architecture: Green Roof & Screw Pile Foundation

Our engineers at Fluxiss, dive into the core challenges and brilliant outcomes of this particular Belgian home, as the design choices here are really setting a new standard for low-impact residential builds.

Challenge: Building Smarter, Not Harder—The Eco-Foundation Puzzle

The initial hurdle was the foundation. This wasn’t your typical concrete pour; the design specified an incredibly eco-friendly, non-traditional system using Screw Piles (Pieuv Vissée).

Honestly, integrating MEP (Mechanical, Electrical, and Plumbing) services with a non-traditional structural system like this is complex. It demands meticulous coordination, especially detailed in the Foundation Plan and in the specifics of the Wood Wall (Mur en Bois) and Slab Construction (Dalle et Mur en Bois) cross-sections. Our Team at Fluxiss excels at this exact kind of structural-MEP integration—ensuring all conduits, pipes, and anchors work seamlessly with the wood framing and the screw piles.

Result: The Green Roof & Thermal Efficiency Game-Changer

The payoff in this design is huge for the environment and the homeowner. The distinctive Vegetated Green Roof (Toiture Végétale) is the star. It’s not just for looks; its primary function is thermal efficiency and superior rainwater management.

We provided the necessary construction details for this: the zoomed-in plans showing the roof’s delicate waterproofing layers and insulation interfaces. Getting this right is critical. The design package—including the Ground Floor Plan (Plan RDC), the four detailed Façade elevations, and precise cross-sections (Coupe A-A and B-B)—confirms the thermal performance is built-in, not bolted on. The full MEP suite—the Electrical Plan (Plan Électrique) and Sanitary Plan (Plan Sanitaire)—ensures that the home’s operational energy consumption matches its low-impact construction. This is where holistic engineering truly shines.

The final drawings were top-notch, produced by Hauwaert Grégory for the Theux site. The fact that they cover every angle—from the main architectural drawings down to the granular Green Roof and wall/slab interfaces—proves this was a fully engineered, future-proof home. It’s a real-world example of how sustainable foundations and ecological roofing are making homes in Europe—and anywhere—truly resilient and cost-effective over the long term.

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