Passive House Roof Insulation

Masonry construction with thermal insulation compound system timber construction lost.

Passive house roof insulation.

The level of insulation in passive houses u values thermal transmittance of external walls floor slabs and roof areas of passive houses range from 0 10 to 0 15 w m k for central european climate. Insulation specifying high levels of insulation for the thermal envelope is at the heart of good passive design. Inadequate insulation and air leakage are the main causes of heat loss in homes. Passive houses are working examples of dwellings with very good thermal insulation standards.

Thermal insulation for passive houses must be extremely effective and so thick walls are built up using super insulation to achieve high r values. Insulation acts as a barrier to heat flow reducing heat loss in winter to keep the house warm or reducing heat gain in summer to keep the house cool. These key principles are high levels of thermal insulation passive house windows heat recovery ventilation airtightness and thermal bridging free design. These values may be slightly higher or lower depending on the climate.

Passive house has a reputation for requiring ungodly amounts of insulation. It grew out of the superinsulation movement after all. Passive house principles 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.

Examples of constructions suitable for passive houses with an excellent thermal insulation.