Passive House design is one of the most rigorous low-energy building standards in the world, requiring extremely high levels of wall insulation and air tightness to create buildings that maintain a comfortable indoor temperature almost entirely without active heating or cooling systems. The EPS Cement Sandwich Panel is perfectly optimized to meet all Passive House requirements, with its consistent high R-value thermal performance that does not degrade over decades of use. Unlike other lightweight insulation materials that can have gaps and thermal bridges that leak heat, the solid, continuous panel structure creates a fully uninterrupted thermal envelope around the entire building, eliminating almost all unwanted heat transfer through the walls.
The cement bonded structure of the panel also provides just the right amount of thermal mass, which absorbs excess indoor heat during the day and releases it slowly at night, keeping indoor temperatures extremely stable without any sudden spikes or drops. This eliminates the need for expensive, complex active temperature control systems, letting the Passive House maintain a perfect 20 to 24 degree Celsius indoor temperature all year round using almost zero external energy. The panel’s excellent air tightness also prevents uncontrolled air leakage through the wall structure, which is one of the biggest sources of unnecessary energy loss in many low energy buildings. More and more certified Passive House projects around the world are now adopting the EPS Cement Sandwich Panel as their primary wall material, because it simplifies construction, reduces total project cost and consistently delivers the ultra-high performance required by the strict Passive House standard.
