Enable rapid calculation of U-values/U-factors for all types of building element
Editor: Upsilon enables rapid calculation of U-values/U-factors for all types of building element, including walls, floors and roofs. Upsilon will also calculate admittance and conduction transfer Factor (CTF) data and will predict the occurrence of interstitial condensation.


All calculations are performed in accordance with current ISO 6946, ISO 13370 and US calculation methods. A materials database is included, which may be edited and added to.

Upsilon operates in metric SI and imperial IP units. you can free download Upsilon 3.20 now.