A Passive House is a building, for which thermal comfort (ISO 7730) can be achieved solely by post-heating or post-cooling of the fresh air mass, which is required to achieve sufficient indoor air quality conditions – without the need for additional recirculation of air.

Passive House Institute

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The five principles of passive house design

  1. Superinsulated envelopes
  2. Airtight construction
  3. High-performance glazing
  4. Thermal-bridge-free detailing
  5. Heat recovery ventilation
Passive House image diagram

Achieve superior energy efficiency and occupant comfort with stone wool insulation

ROCKWOOL’s mass wall enclosure system is certified by Passive House Institute (PHI) and the details can be directly incorporated into your project.

The House at Cornell Tech | Photo by Field Condition

People, Humans, Child, Home, Painting

Resources

Explore our products for passive house construction

01

Fire Resilience

The materials we choose to build with can fundamentally affect the fire safety of a building.

ROCKWOOL insulation is extremely resilient to fire. It works to contain fire and prevent its spread. At the same time, it does not contribute to the emission of significant quantities of toxic smoke.

02

Thermal properties

The optimal indoor temperature, whatever the weather is outside.

ROCKWOOL stone wool gets its insulating performance from the tiny pockets of air trapped among the stone wool fibres, which prevent heat transfer, helping buildings stay warm when it’s cold outside and cool when it’s hot outside.

03

Acoustics

Reduce noise and absorb sound to create more comfortable, healthier indoor spaces.

From railways to tramways, roads to airports, good infrastructure is crucial to urban life, which can be very noisy. The resulting ground-borne vibration, traffic noise – and not to mention human noise pollution – all have a serious and negative impact on our wellbeing, especially in densely populated areas.

04

Durability

Increased performance and greater stability with lower costs.

ROCKWOOL stone wool insulation can last for at least 65 years with no need for maintenance, and is unaffected by weather, humidity and temperature changes.

05

Design flexibility

Match performance with design

Stone wool's many strengths and physical properties enable it to be used in many different forms for a variety of purposes and applications – adaptable to the needs of any design.

06

Moisture repellence

Protecting buildings and the people inside them from the damaging effects of moisture accumulation.

ROCKWOOL stone wool insulation repels water and resists moisture, helping to protect the long-term health of buildings and the people inside them.

Learn more about Passive House enclosure systems and the benefits of Stone Wool Insulation.
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