Stellaria NZ specialises in 100% natural and durable building materials as a direct response to the negative impact traditional building materials and construction methods have on our environment.
Construction waste and material toxicity are a major concern on the building site. Porotherm clay blocks are not only 100% natural clay, breathable and sustainable but the waste can be crushed back into the garden or soak pit.
With Declare certification in NZ and numerous green merits globally, Porotherm creates a positive environmental impact by contributing to regenerative buildings and communities that look after nature. Wienerberger set and attain high sustainable and environment goals, restoring retired quarries to natural habitat and fauna. With high R-value, high thermal mass and single leaf design, performance at every level is guaranteed. Warm, cool, quiet, stable to endure well over 150 years, Porotherm will outlast most other construction systems.
Called the ‘accidental passive house’ the building 2226 in Austria, is built using Porotherm double skin clay blocks and the architects found it required minimal heating and cooling — often providing positive energy from the building. No heat recovery or air exchange systems required.
Clay Block Buildings use this technology to manage moisture, indoor air quality and breathability to ensure lifelong, multi-generational optimal health and wellbeing for many lifetimes and generations. Stellaria NZ commits to planting ten trees for every building project in NZ to off-set the carbon footprint importing from Europe to NZ.