EI: Integrity & Insulation
Insulation-time calculation for separating wall and floor assemblies using the component additive method of EN 1995-1-2:2026.

Main use cases
- Insulation checks for separating walls and floors
- Comparison of lining, insulation, void, and timber layers
- Traceable calculation records for project review
Main features
Assembly editor
Build the complete construction from the fire-exposed side and select wall, floor, or ceiling exposure.
Component additive method
Combine material-specific protection times with position, joint, fall-off, and interaction factors.
Transparent result
Review the total insulation time and every layer contribution on screen or in the detailed calculation PDF.
Supported inputs
- Wall, floor, or ceiling orientation
- Ordered material layers
- Layer thickness and density
- Panel-joint configuration
- Fire-protection-system layer count
Results generated
- Total insulation time t_ins
- Protection time of each layer t_prot,i
- Layer interaction increments Delta t_i
- Material and layer calculation trace
Available results and exports
WEBLayer-by-layer result summary
PDFDetailed calculation report