Custom timber-frame project · Aragón, Spain

Aratorés Wood & Stone Residences

Two related residential buildings in Aratorés, Spain, each of around 150 m², combining prefabricated timber-frame construction with the region’s characteristic stone cladding.

This project brings together two houses in the mountain setting of Aragón. One building has already advanced to its stone-clad architectural expression, while the second reached an impressive assembly result in only two weeks, showing how ERGIO’s prefabricated timber workflow can support speed without losing local character.

SpainTimber Frame2 buildingsApprox. 300 m² totalStone + timber façade

Programme scale2 houses of approx. 150 m² each

Exterior wall framing45 × 240 mm

Insulation conceptMineral glass wool + additional internal mineral wool layer

Exterior expressionRegional stone cladding on both buildings

Project overview

Two related houses, one material language rooted in place.

The Aratorés project shows how prefabricated timber construction can adapt to the visual identity of a mountain village while keeping a fast and rational site process.

Located in Aratorés, in the municipality of Castiello de Jaca in Huesca, the project comprises two residential buildings of approximately 150 square metres each. The first house has advanced to the stage where the local stone cladding defines its final architectural character, while the second achieved its main installation milestone in just two weeks. Together, they demonstrate how one coordinated timber solution can support both rapid assembly and a façade response that feels regionally grounded.

Project scope

Engineering, approvals, performance requirements and contractual responsibilities remain project-specific and are governed by the approved documentation and agreed supply scope.

Two related timber-frame residences in Aratorés, Spain, one stone-clad and one in advanced assembly

Close exterior view of the second Aratorés residence during rapid on-site assembly

Twin residential timber projectA pair of mountain-village houses where rapid timber assembly is combined with the long-lasting presence of regional stone cladding

Technical highlights

A deep wall build-up prepared for thermal performance, acoustic separation and a stone-and-timber finish strategy.

The Aratorés residences demonstrate how ERGIO can adapt one timber manufacturing logic to a regional architectural expression based on stone, solid wall depth and robust envelope performance.

Twin-building programme

Two related residential houses within one coordinated project

The project consists of two buildings of approximately 150 m² each. Although they are separate volumes, they share the same technical logic and the same exterior material language.

Exterior wall framing

45 × 240 mm framing forms the structural basis of the external walls

This deeper wall section supports the required structural capacity while accommodating a thermally efficient layered build-up adapted to the project’s climate and façade strategy.

Thermal and insulating layers

Mineral glass wool is used both within the frame and as an additional internal layer

The exterior wall combines a 45 × 240 mm framing structure, mineral glass wool insulation, a vapour-control layer and a further internal mineral-wool layer to support thermal performance.

Board and membrane package

Superpan, vapour control membrane and 15 mm OSB complete the wall logic

The exterior wall build-up includes a Superpan board with wood-fibre faces and agglomerated wood-particle core, a vapour control membrane and 15 mm OSB sheathing, all contributing to a coordinated prefabricated envelope.

Interior partitions and finish strategy

45 × 95 mm interior walls plus acoustic mineral wool, with stone cladding outside

The interior walls use a 45 × 95 mm framing structure with mineral glass wool boards and acoustic roll, together with 12 mm OSB sheets. Externally, both houses are finished with the same regional stone cladding, giving the project a coherent and place-specific identity.

ERGIO relevance

What this project demonstrates.

The project combines several strengths that matter for professional timber construction partners: market adaptation, façade coordination, speed of assembly and a clearly structured wall build-up.

Regional façade adaptation

The project shows how prefabricated timber construction can integrate stone cladding and still retain the efficiency of a factory-prepared structural system.

Fast on-site assembly

The second house reached a notable installation result in only two weeks, highlighting the time advantage of coordinated prefabrication.

Robust wall composition

The use of deep external wall framing, mineral wool, Superpan, vapour control membrane and OSB illustrates a technically layered envelope suitable for project-specific performance targets.

Consistency across multiple buildings

Even as the construction stages differ, both houses follow the same visual and technical concept, reinforcing the value of one coherent timber strategy across more than one building.

Wide site view showing the stone-clad house and the second Aratorés house in assembly

Close-up of the second Aratorés house during assembly

Wider site view of both Aratorés houses within the mountain landscape

Front angle of the second timber-frame house in Aratorés

Rear elevation showing the larger Aratorés house with connected volume during progress

Connected workflow

How one prefabricated timber strategy supports two houses and a regional architectural identity.

As with other destination-market projects, the visible result is supported by a deeper process: approved information, coordinated wall build-ups, prepared interfaces and site sequencing matched to the construction phase.

Architectural and regional brief

The project starts with two houses that are expected to belong to the same place, drawing on the visual language of wood and stone typical to the area.

Envelope definition

Wall framing, insulation, board layers and membrane strategy are coordinated around the required thermal and structural performance.

Façade integration

The external finish strategy is developed so the timber structure can receive the region-specific stone cladding while preserving a coherent construction logic.

Sequenced assembly on site

The second house’s two-week installation result illustrates the advantage of prepared timber packages delivered for efficient on-site progress, while the first house shows the façade concept advancing toward its final expression.

Share the location, design stage, target wall build-up, façade expectations and desired level of factory preparation, and ERGIO can review how prefabricated timber can support the project.

Planning a timber project that must respect local architectural identity?

Share the location, building mix, design stage, desired envelope build-up and the level of factory completion required, and ERGIO can review the project with you.

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