LAROS Structures

High Performance Pre-fabrication Construction

Our Vision

High-Performance, Energy Efficient And Sustainable Homes


The LAROS Group have been working on high-performance, sustainable buildings for over a decade through LAROS Technologies. We provide world class building supplies that are vital in constructing the very best sustainable Passive Houses. LAROS Consulting are experts in building physics and ensure that LAROS Structures’ buildings perform to the highest standards, and provide a healthy living space for their occupants year round. When building with LAROS Structures, you are also building with LAROS Group.

The Process

1. We work with you, your architect, and builder to design your home and plan out each panel.

2. The panels are built in our Canberra factory by qualified carpenters with over 15 years of industry experience.

3. Once built, we prepare for the rough in of electrical and plumbing, as well as all the ducting and penetrations required for our ventilation systems. This ensures complete airtightness for all these penetrations. This is unlike regular CLT or SIPS pre-fab, as none of this needs to be done on site, bringing you to lockup sooner.

4. We insulate and wrap each wall section with Earthwool® and ProClima Extasana®, to ensure the project is fully weatherproof immediately after installation.

5. The roof structure is built, insulated, and also wrapped in ProClima Mento®. Battens for cladding and roofing are installed on the roof and wall sections.

6. The panels are transported to site and assembled using European engineered timber connectors. From delivery to lockup is only 1-2 weeks.

7. You enjoy your beautiful new, sustainable, and high-performance home.

The Structure

We have chosen only the best materials for each component within the structure.
Photo Courtesy of Hao Quan Cai

Tilly Solid Timber Panel

The Solid Timber Panel forms the heart of the structure, so we’ve ensured that it is made from the best material available. Timber is one of the oldest building materials for a reason. It is both structurally strong, as well as very environmentally friendly, with minimal carbon footprint. Mass timber is a strong carbon sink, locking away CO2 for the life of the building and all of Tilly’s timber is PEFC certified, from sustainable Austrian forests. Their Solid Timber Panel is especially strong, made from several cross laminated layers of timber, glued together with alternating grain directions. This provides it with similar strength to concrete, without the weight. This results in a high load bearing and sustainable material. Further, the timber will provide a high-quality finished surface internally. No need for plasterboard and painting.

Wall and Ceiling Lining

The Tilly 3-Ply Spruce ‘CLT’ sheets are the standard LAROS wall and ceiling linings. Wall and roof panels are always constructed with a 3-ply lining that can then be covered with the desired architectural finish. Floor panels can be fitted with commonly available structural floor and ceiling sheets on request.

Joins between panels that form the building envelope require careful attention to ensure airtightness across the joint.

There are a number of window and door reveal details possible, if there are specific architectural requirements for these reveals please contact LAROS.

External Cladding

Due to the care in which the wall structure is made, the external cladding only acts as a rain shield. Therefore, there is no compromise to the thermal performance no matter what external finish is applied, giving you endless options.

Earthwool® Insulation

Earthwool® Insulation provides the perfect balance of comfort, cost, performance, sustainability, and health. Earthwool® is made from up to 80% recycled glass and bound together using a biobased technology. It makes for a healthier and safer home, as it is non-combustible, rot-proof, odourless, non-hygroscopic (will not absorb atmospheric moisture), does not sustain vermin and will not encourage the growth of fungi, mould or bacteria. All while providing excellent thermal performance and insulation for your home.

The ProClima wraps on both the walls and roof provide excellent airtightness and weathertightness. This allows the insulation to perform at its best and stops any air leakage in or out of the structure. Further, these membranes are vapour permeable, allowing for the outward drying of any moisture within the structure.


You can read more about our Pro Clima system’s here.

Inclusions and Exclusions

Standard Inclusions

  • Structural Design
  • Thermal Design
  • Wall Studs/Roof Rafters/Floor Joists & Bearers
  • Wall/Ceiling Lining (3-ply Panel in Spruce)
  • Airtightness System – Including Penetrations
  • Insulation
  • Weatherproofing Membranes
  • External Battens (Vertical)
  • Connections, Fixings and Tie-Downs
  • Factory Labour
  • On-site Installation Advice
  • Blowerdoor Test at Handover

Standard Exclusions

  • Architectural Design
  • Foundation Design
  • Development Approval
  • Building Approval
  • Wall/Floor Coverings
  • Cladding
  • Foundations
  • Services
  • Fittings and Fixtures

Optional Extras

  • Installation Costs (Labour, Craning, etc.) 
  • Windows/Doors
  • External Battens (Horizontal) 
  • ERV/HRV System

More information coming soon ! 


If you’ve got any questions or inquiries, send us an email at, or call at (02) 6160 7777