Passive House Roof Insulation

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

Passive house roof insulation.

Passive house has a reputation for requiring ungodly amounts of insulation. If you re familiar with any passive house projects you may be thinking about double stud walls that are a foot thick or regular walls with 6 to 12 inches of rigid insulation on the outside. 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 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.

The house at cornell tech photo by field condition. An exemplar of correct detailing. A highly insulated eaves joint cepheus project horn austria architect treberspurg vienna. Insulation specifying high levels of insulation for the thermal envelope is at the heart of good passive design.

Thermal insulation for passive houses must be extremely effective and so thick walls are built up using super insulation to achieve high r values. These values may be slightly higher or lower depending on the climate. It grew out of the superinsulation movement after all. Passive houses are working examples of dwellings with very good thermal insulation standards.

Masonry construction with thermal insulation compound system timber construction lost.