Passivhaus Affiliate

New tool simplifies inputting windows in PHPP

A new tool which simplifies the process of inputting window information into the Passive House Planning Package (PHPP) has been developed by Tim Martel at Optimal Retrofit.

The tool is a separate spreadsheet that greatly simplifies entering windows in your PHPP and can save time working out dreveal and other info in the Window tab of PHPP. It's suitable for PC only using PHPP 2007, 8.5, 9.6 and other versions on request. It doesn't modify the PHPP at all other than fill in window details including: the sub pane dimensions, 1's and 0's, d reveal and pane id.

Passivhaus Trust members receive a 20% discount off the price of the software.

More information is available on our 'How to build a Passivhaus' knowledge base at

29th August 2017

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