Modelling heat flow...
Modelling heat flow...

Software
Another spreadsheet Software for Passivhaus designers and building physicists, from the people who use it every day.

Free · Windows and Mac
Thermal bridges for Passivhaus, from drawing to report.
Reports from your THERM and PHPP files, or draw the section and solve it with the Junction solver: ψ, fRsi, installation ψ and hour-by-hour moisture, with every step of the working shown.
Download and manual →
SketchUp extension · free 3-day trial
The reports and shortcuts designPH does not have.
Window schedules, shading and certifier reports, areas, volumes and thermal bridges, a two-way sync with PHPP, PHPP variants and a path to Passivhaus.
See everything it does →Calculation aids, not a substitute for judgement: a competent professional checks every result.