What it is built from — and why not the conventional way
We do not build from the usual brick and plastic. We take you through the six phases of construction: what goes in, and why exactly that — the solid, healthy, durable solution instead of one that ages quickly.
Six phases, handed over with quality checkpoints
Every house goes through the same six documented phases. At every step you know which material goes in — and why we chose it over the usual solution that ages quickly.
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01
Site preparation
Geodetic survey, utilities, landscaping and orientation. We plan the position and direction of the house in advance — the sun, the wind and the soil work with the house, not against it.
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02
Foundation
Reinforced, continuous raft (slab) foundation (PIR edge insulation): the whole house sits on the ground as one piece.
Why not the conventional way: Instead of the usual strip or pad foundation, a reinforced concrete raft (slab) foundation — no uneven settlement, and the PIR edge insulation running all around rules out thermal bridges and moisture from the ground.
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03
Shell complete
Cast, reinforced Liapor expanded-clay lightweight concrete wall panels (15 cm, A1 – non-combustible) + 18 cm Rockwool rock wool, with a vapour-permeable (diffusion-open) silicone render outside; glue-laminated (glulam) roof structure with 400 mm of blown-in cellulose insulation and concrete roof tiles; triple-glazed solid-timber windows and doors.
Why not the conventional way: Conventional brick or aerated concrete does not offer this much thermal mass and durability. The Liapor + rock wool wall has a U-value of 0.17 W/m²K, the roof below 0.13 — vapour-permeable (diffusion-open), with a service life of 80+ years. Instead of plastic windows, solid timber that lasts for decades.
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04
Heating-ready
The full building services are in place: Samsung air-to-air heat pump, Samsung ERV heat-recovery ventilation with pollen filtering, ASIO rainwater harvesting — all connected to the ABB KNX bus running inside the wall, with room-by-room zone control.
Why not the conventional way: The building services and the smart-home backbone are in the wall, planned in advance — not chased in afterwards, not hidden in cable trunking.
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05
Turnkey
Interior surfaces: VOC-free, mould-resistant, natural paints; Muratto cork wall covering; Blokkwood interior thermally modified timber (parquet, wood tiles); Sapho sanitaryware; EGLO lighting.
Why not the conventional way: Instead of plastic emulsion paint and chipboard, natural, breathable, healthy materials — for clean indoor air.
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06
Home-ready
Yakisugi (thermally modified, charred timber) facade, fitted kitchen and furniture in place, smart home commissioned and explained to you — a finished, liveable home. You just move in.
Why not the conventional way: Not just heatable, empty walls: a finished, liveable home from day one.
What a Bolygóbarát Ház is built from — item by item
From the structure to the finishes, the terrace and the paints, and on to the furniture and the building services — every key technical detail in one place. We do not build with conventional solutions that age quickly, but with solid, durable, healthy materials.
Structure and foundation
| Foundation | Reinforced concrete raft (slab) foundation (PIR edge insulation), continuous |
|---|---|
| Load-bearing wall | Cast, reinforced Liapor expanded-clay lightweight concrete, 15 cm, LC16/18 |
| Fire resistance | A1 – non-combustible; wall system REI 180 |
| Sound insulation | Rw ≥ 56 dB (interior) · ≥ 63 dB (exterior) |
| Structural lifespan | 80+ years |
Thermal performance and energy
| Wall structure | 15 cm Liapor LC16/18 reinforced lightweight concrete + 18 cm Rockwool rock wool — U = 0.17 W/m²K |
|---|---|
| Roof insulation | 400 mm blown-in cellulose insulation — U ≤ 0.13 W/m²K |
| Foundation insulation | Thermal-bridge-free reinforced concrete raft (slab) foundation with PIR edge insulation |
| Thermal conductivity (wall) | λ = 0.16 W/mK |
| Vapour permeability | μ ≈ 12–15 – a “breathing” wall |
| Primary energy demand | ≤ 70 kWh/m²/year |
| Energy rating | AA+ (Hungarian energy class) |
| Carbon footprint | 60–70% lower manufacturing CO₂; 100% recyclable |
Roof and windows
| Roof structure | Glue-laminated (glulam), pitched roof 25–35° |
|---|---|
| Roofing | Concrete roof tiles – prepared for solar panels |
| Windows and doors | Triple glazing, Ug = 0.5 W/m²K, solid-timber frame |
| Facade timber | Yakisugi (charred timber, shou sugi ban) as standard – Odie’s Oil finish |
Finishes, surfaces, accessories
| Exterior render | Silicone render (Baumit Sil), 1.5 mm, light tone |
|---|---|
| Terrace | Threshold-free, timber structure, level with the living room |
| Interior paint | Natural, mould-resistant, health-friendly |
| Insulation | PIR edge insulation in the foundation; vapour-permeable (diffusion-open) layer build-up |
| Furniture | Fitted kitchen (Blum), wardrobes, solid-timber elements |
| Accessories | Lighting, shading, textiles – included in the home-ready package |
Interior
| Ceiling height – living room | 3.5–5.0 m, following the roof geometry |
|---|---|
| Ceiling height – other rooms | 280 cm |
| Glazed area – living room | min. 3×3 m towards the garden |
| Feature element | Window seat – 40 cm projection, seating nook |
Building services and smart home
| Heating and cooling | Central air-to-air heat pump (Samsung), SCOP ≥ 5.1 |
|---|---|
| Ventilation | Heat-recovery ventilation (ERV), ≥ 90% efficiency |
| Water management | Rainwater harvesting (ASIO), 4,000–10,000 l |
| Smart home | ABB KNX bus + Samsung SmartThings – one interface |
Self-sufficiency package (optional)
| Solar panels | 8–20 kWp, monocrystalline |
|---|---|
| Energy storage | LiFePO₄ battery, 10–20 kWh |
| Operating mode | On-grid / hybrid / off-grid, 90–100% coverage |
Questions about the technical specification?
Come to Szentendre — or call now.
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