News & Articles

More window manufacturers and suppliers have supplied data to populate Sustainable Engineering’s window specifications database. Passive House designers can now find specs for timber windows manufactured here in New Zealand...

A slab edge is one of the most common thermal bridges we see in New Zealand. In a traditional timber framed building on a concrete slab, the perimeter thermal bridge...

Tech Tips with Toby Variants is a handy tool when using PHPP to model multiple design options within the one PHPP file. Suppose you’re trying different window frames, glazing or...

Tech Tips with Toby PHPP is the software Passive House designers use to model the performance of buildings—before they are built. It’s a front-end on an Excel spreadsheet. Now, most...