Passive House Construction Step-by-Step: Concrete Slab & Interior Staircase (Episode 3)

In this third episode of our passive house build series, we move to a critical stage: pouring the reinforced concrete slab and constructing the interior staircase. We are building this energy-efficient home using autoclaved aerated concrete (AAC/BCA) blocks. Watch as we detail the entire process of preparing the site, installing reinforcement, and pouring the concrete for the ground floor slab. This slab acts as a massive thermal mass, crucial for regulating indoor temperatures in a passive house. We also showcase the construction of the interior wooden staircase. This phase is essential for accessing upper floors during the build and planning the home's internal flow. Key steps covered in this video: Site preparation and leveling for the concrete pour. Installation of the rebar grid for structural strength. Mixing and pouring the concrete slab with precision. Building the wooden staircase structure from scratch. Integrating these elements into the overall passive house design. This series documents real, on-site construction of a high-performance home. Follow along to learn about sustainable building techniques, material choices, and the practical steps to achieve passive house standards. Subscribe and hit the bell icon to follow the entire construction journey, from foundation to finish.