Need a Psi: the Psi calculator developed by Rector Lesage, gets a makeover

With Need a Psi, find the most suitable thermal bridge treatment solution and consult its psi values ​​in a few clicks, whatever the type of construction and floor level!

To do this, all you have to do is answer four simple questions about:

• The type of building
• The type of floor: floors with beams or pre-slabs
• The floor level
• The type of heat loss treatment desired (level of performance)

Discover and test the new features of Need a Psi

The latest version of the thermal simulator Needdunpsi.fr, available today, includes new data and features:

• Psi values ​​have been updated to take into account the new range of Box of Equatio contact breakers and adding the values ​​of Equatio Duo floor.
• A new process has been set up to obtain data to calculate the carbon impact of a solution. These data relate to: the concrete liter, the steel mileage and the FDES numbers of the constituent elements.
• The questionnaire has been simplified: no need to validate each of your choices! The option is automatically selected when you click and it is very easy to go back.

Compare if you want!

With the simulator, it is possible to refine your search to visualize the psi of the unique solution that meets the operational configuration of your project (facade, floor thickness, etc.).

Need to compare the performance of Rector solutions in different types of configuration? Go to the psi library section to access a complete summary, in 3 clicks, of the thermal performance of all products.