Foam Concrete Q&A — Expert Answers from Zion Home Engineer
Everything you need to know about foam concrete technology — straight from the construction site.
❓ 1. What exactly is foam concrete?
Answer:
Foam concrete is a lightweight, cellular building material made from cement, water, and a special foam agent.
The foam creates millions of tiny air bubbles inside the mix, which makes the concrete strong, thermally efficient, and much lighter than traditional concrete.
It’s like solid rock — but full of microscopic insulation cells.
❓ 2. Is foam concrete strong enough for structural walls?
Answer:
Yes. At Zion Home, we use foam concrete of density D200–D400 with a compressive strength of up to 20 MPa (≈M200).
When combined with LSTK steel framing, the result is a monolithic system that easily meets all structural and seismic standards for residential construction.
🧱 Foam concrete is not just insulation — it’s part of the structure.
❓ 3. What are the main advantages of foam concrete?
Answer:
🚀 Fast installation
🌡️ Excellent insulation (up to 40% less energy consumption)
🔇 Soundproof and fire-resistant
💧 Moisture- and mold-resistant
🌍 Eco-friendly, made from natural materials
🧱 Perfect adhesion to LSTK and finishing layers
It’s a simple formula: lighter walls + better insulation = lower costs + higher comfort.
❓ 4. How is foam concrete used in Zion Home villas?
Answer:
We pour foam concrete inside the walls of the steel frame after assembly.
Once hardened, it becomes a solid mass that:
strengthens the structure,
seals all gaps,
provides heat and sound insulation,
and increases the overall fire resistance.
🧩 The wall becomes one continuous, airtight, and warm monolithic block.
❓ 5. What about humidity and salt air on Crete?
Answer:
Foam concrete performs perfectly in Mediterranean climates.
It does not absorb water, does not crack under temperature changes, and prevents condensation.
For additional protection, Zion Home adds:
vapor-permeable membranes,
exterior waterproof coating,
and ventilated facade systems.
The result — zero mold, zero corrosion, zero maintenance.
❓ 6. Is foam concrete environmentally friendly?
Answer:
Absolutely.
It’s made only from cement, water, and protein-based foam, with no harmful chemicals.
It is 100% recyclable, non-toxic, and reduces CO₂ footprint thanks to its energy-saving properties.
♻️ Zion Home uses certified European materials compliant with EN 998-2 standards.
❓ 7. How long does foam concrete last?
Answer:
Properly mixed and sealed foam concrete lasts over 100 years — it’s an inorganic, stable material that doesn’t rot or decay.
When combined with galvanized steel, the lifespan of the structure exceeds a century with minimal maintenance.
“Foam concrete is not a temporary filler — it’s a permanent part of your home’s strength.”
❓ 8. Can foam concrete be used for floors and roofs too?
Answer:
Yes, and we do it often.
It’s perfect for:
leveling layers under flooring,
flat roofs and terraces,
slope formation under waterproofing membranes.
Because it’s light and insulating, it reduces overall load on the structure — ideal for island constructions.
❓ 9. How does it compare to traditional insulation (like XPS or mineral wool)?
Answer:
Foam concrete:
provides both insulation and strength,
is non-flammable,
doesn’t require plastic membranes,
and integrates seamlessly with steel frames.
While mineral wool and XPS can degrade over time, foam concrete is integral and permanent.
🧠 It’s a one-time investment that never needs replacement.
❓ 10. Why does Zion Home use foam concrete instead of aerated blocks or bricks?
Answer:
Because we value precision, speed, and durability.
Aerated blocks require mortar joints, manual installation, and time —
foam concrete is poured directly into the structure and sets evenly in hours.
That’s how we build villas in just 4 months.
“Traditional masonry takes a year. Foam concrete + LSTK — only four months.”
⚙️ Final Words from Our Engineer
“Foam concrete is one of those rare materials that’s both technical and beautiful in its simplicity.
It allows us to build warm, light, and sustainable homes that last a lifetime.”