Layer 01, Timber slats · cladding (20 mm)
Exterior slat cladding, choose between timber, Parlex or ceramic. It protects the envelope from sun, rain and wind and sets the façade finish.

We have developed a system that pairs Passivhaus principles with Mediterranean materials and climate: C-24 pine studs, high-density rock wool, an airtight barrier and a ventilated façade. Every panel is prefabricated at our Castellbell workshop, where quality control reaches 100%, something you simply cannot do on site.
Every project is tested with a Blower Door before handover. Our homes hit thermal transmittance and airtightness figures three times better than the CTE limit. Real energy savings you can verify, not estimates.


Every home we have built is a documented case study: plans, specifications, line items, time-lapse and final results. Four in-house departments work in sequence so nothing slips through the cracks, from the first sketch to after-sales.

A continuous high-density layer on façade, roof and slab to minimise losses.
Triple-glazed windows with a thermal break in the frame.
Construction details that eliminate discontinuities in the envelope.
A continuous barrier verified with a blower door (n50 ≤ 0,6 ach/h).
Air renewal with a high-efficiency heat recovery unit.
The base Passivhaus seal: comfort and minimal consumption, no on-site generation required.
The usual choice if you want a certified Passivhaus home on the tightest budget, without adding renewable generation to reach the seal.
Adds on-site renewable generation: the home covers a large share of what it uses.
For you if you want to cut the bill close to zero and leave the home ready for self-consumption, with an upfront premium that pays back over the years.
The top level: it generates more renewable energy than it needs over a year.
For projects with enough roof and the right orientation to generate a surplus, and for anyone after the highest documented energy independence.
The full envelope section, layer by layer. Hover or tap any material to see what it does.
Hover or tap a layer of the section to see its material, thickness and role.

Every project is different. The process isn't. Design takes three to eight months, construction another nine to eighteen.
A topographic survey of the plot and a full architectural project. We handle the building permit with the town council and prepare all the technical paperwork.
The Eskimohaus® system needs the geometry and orientation nailed down before anything is manufactured. Get this first phase right and you lock in the home's energy performance and avoid costly changes later on site.
A first sketch and a detailed indicative budget. In under a week you have the figures in front of you, with full transparency on materials, labour and timelines.
A fixed price takes the most common nasty surprise out of traditional construction. Because the Eskimohaus® system is our own, we can price every line item precisely and lock in the budget before the foundations go in.
Foundations sized to the geological study, plus a sanitary slab of 180 mm timber and 180 mm rock wool. It blocks moisture, termites and heat loss from day one.
The ventilated sanitary slab breaks the thermal bridge with the ground and blocks rising moisture. It is the hygrothermal base on which all the later Passivhaus performance rests.
We prefabricate the panels (C-24 pine 100×50 mm), floors (180×50 mm beams) and roof at our Castellbell workshop. 100% quality control, off site.
Manufacturing under cover, out of the rain, means the timber and insulation reach the site at the right moisture content. That workshop quality control is the structural difference between Eskimohaus® and traditional in-situ construction.
Dry assembly on site. A roof with 180 mm beams, rock wool and a breathable waterproof membrane. Full thermal and acoustic insulation.
Getting watertight in a few weeks takes the main risk out of traditional timber construction. The breathable membrane keeps the vapour barrier working and protects the insulation through the rest of the build.
Ventilated timber façades. Passivhaus windows and doors (triple glazing, thermal-break frame). An airtight OSB barrier to guarantee airtightness of n50 ≤ 0,6.
Airtightness of n50 ≤ 0.6 is the official Passivhaus threshold. Without that measured figure there is no certification, and the home won't behave the way the PHPP model predicts.
Water, electricity, drainage and heating with solar panels. MVHR (mechanical ventilation with heat recovery) is mandatory in certified Passivhaus homes.
An airtight Passivhaus home needs MVHR to renew the air without losing energy. Pair that with aerothermal energy and photovoltaics and the house runs almost self-sufficiently for most of the year.
Interior finishes to your taste. A final blower door test to certify airtightness. We hand over the keys with the full documentation, a user manual and the Passivhaus certificate.
The Passivhaus certificate is not a decorative badge, it is documented proof that the house delivers what the project simulated. Without a final blower door and official certification, there is no objective guarantee of energy performance.
Ten full years of direct warranty and support. Regular inspections, MVHR maintenance and ongoing technical help with the Eskimohaus® system.
A direct ten-year warranty, with no insurance company in between, means the builder answers to you with its own assets. That is the commitment that sets apart those who stand behind their own system from those who outsource the risk.
Private individuals, architects, developers, cooperatives, companies and public administration: whoever you are, you get the same quality control and the same ten-year warranty.
We build your one-off home with our own system, an in-house team and a ten-year warranty, no insurance intermediaries.
You sign the design. We build it faithfully, with prefabrication controlled at the Castellbell workshop.
We build your Passivhaus development to fixed deadlines, with verifiable quality and a transparent line-item budget.
A shared building under a cooperative scheme, with industrial prefabrication and A-rated or Passivhaus certification per home.
Commercial buildings and corporate offices with minimal consumption and a certifiable energy audit for investors.
Public facilities and works adapted to the tender format, with a line-item budget and a technical specification document.

An airtightness test of n50 ≤ 0.6 ach/h documented as a final contractual deliverable.
We track real consumption over the first twelve months to confirm the projected performance.
A legal ten-year warranty managed by PAPIK Group, with no insurance intermediaries.
Inspections and maintenance of the MVHR system throughout the warranty period.
100% of the structural timber with a documented chain of custody.
Every structural component certified to European regulations.
Ready for third-party sustainability auditing whenever the project calls for it.
Carbon footprint quantified in kg CO₂ eq. per m² built.
A structure that comes apart, with materials you can separate and recycle at end of life.
A 100% mineral and timber envelope, with no plasticisers in any component.


The first Passivhaus Plus certifiable home in Catalonia, with sea views.

A single-family home in Sant Cugat with a lightweight frame and SATE finish, Passivhaus certification.

A home in Matadepera built with a CLT system under the Passivhaus standard.

A single-family home in Valldoreix with the Eskimohaus system, Passivhaus Plus certified.

A home in Igualada with an open-plan ground floor and the Eskimohaus system.

An Eskimohaus in Llinars del Vallès, designed as an nZEB Passivhaus building.
01
The indicative price is 1.300–1.600€/m² built. It includes architect's fees, permits, taxes and all the bathroom and kitchen finishes. It does not include the cost of the land or the foundations.
02
Beyond the price per m², you should take into account:
03
Every Passivhaus we build is an Eskimohaus, but not every Eskimohaus is certified:
04
Building with PAPIK Group lets you design it to measure, avoid hidden defects, apply the latest knowledge in efficiency and obtain a home with documentary warranty and real energy certification.
05
The complete process, from the initial consultation to the handover of the keys, has two phases: design between three and eight months and construction between nine and eighteen months, depending on the size and complexity of the project. The detailed schedule by phase can be consulted in the construction process section.
06
Yes. The standard is designed for any climate, but in Catalonia it must be calibrated to control summer overheating: sized solar shading, cross night ventilation and orientation studied from the preliminary design. The MVHR system with an enthalpy recovery unit regulates the indoor humidity and cools the air when the outside is fresher.
07
It is not necessary. If you already have a studio you trust, we execute their project with technical fidelity and coordinate it with the workshop prefabrication. If you do not, we propose architects with Passivhaus experience in your area. The choice of the design team is yours.
08
The initial extra cost compared to traditional construction is approximately 8 to 15% depending on the type. It is paid back in eight to twelve years through energy savings, without counting the property revaluation or the improvement in the energy rating of the asset.
09
Efficient is a generic term with no threshold. nZEB (nearly zero emissions) is the regulatory minimum of the CTE for new construction since 2020. Passivhaus is an international standard with a verifiable threshold: 15 kWh/m²·year in heating demand and n50 ≤ 0,6 ach/h in airtightness. Passivhaus is more demanding than nZEB and certifiable by independent third parties.
10
Yes. We build private developments, cooperative buildings and facilities for companies and public administration. We adapt the technical and administrative documentation to the format of each counterpart (public tenders, a detailed budget by line item, a specification document).