Product updates, practical guides and IAQ resources for building and certification professionals.
Radon causes about 19,000 lung cancer deaths a year in Europe. The i4o solver now calculates its concentration room by room, from the site's soil and the foundation type, while the slab can still change.
On a refurbishment, the model almost always starts from an old DWG. You import the drawings, you set the units and the heights, and i4o rebuilds the geometry: rooms, storeys, openings, orientation. The gbXML file then opens in your thermal simulation software or in an IAQ study.
Two materials laid one on top of the other, their thickness and their 28-day emission: the model computes each regulated pollutant's emission from the assembly, from 28 days to 10 years — top-layer resistance, breakthrough, steady-state formaldehyde and secondary adhesive emissions.
Pre-occupancy over-ventilation effectively cuts some sources but not all, and beyond a threshold ventilating more adds nothing. What the model can estimate, material by material, to decide before works begin.
Beyond simulation, i4o evaluates BREEAM and LEED v5 compliance and handles ventilation, filtration, material labelling and the IAQ management plan.
New interface, the i4o Studio 3D modeller, four IAQ certification frameworks and real outdoor conditions built into the calculation. Everything that changed in four months.