Project

Project name Engineer

Required before calculating; printed in the reports.

Calculation Mode

Mode Country coefficients

Country selection applies EN 1990 load-combination coefficients and factors to the calculation parameters.

Wall Application

Application

External wall uses wind zoning. Internal wall, ceiling, and cold storage presets use uniform internal pressure only.

Site · Wind speed and snow load by address

Address or coordinates

Fills v_b,0 and s_k from the national annex where an official source exists (Denmark, Finland); other countries are entered manually.

Sources and limits

Always verify the values against the national annex. Address search: OpenStreetMap Nominatim; altitude: Open-Meteo; Danish coastline derived from OpenStreetMap data © OpenStreetMap contributors (ODbL).

Wind · Geometry

Wind input mode Basic wind velocity v_b (m/s) Terrain category Building height h (m) Depth parallel to wind d (m) Width perpendicular to wind b (m)

Auto mode calculates q_p(z) from v_b, terrain, and height.

Wind · Internal Pressure

c_pi,max (positive) c_pi,min (negative)

Suction zones use c_pi,max; pressure zone D uses c_pi,min.

Zone Panel Assignment

Calculate Zone A separately with a different panel

Unchecked = one panel for all zones. Checked = the first panel applies to Zones B/C/D/E and the second panel applies only to Zone A.

Panel · Selection

Assembly orientation Product Thickness D (mm) External steel t₁ (mm) Internal steel t₂ (mm)

Panel · Spans

Max span calculation

Left overhang L_ov,1 (m) Right overhang L_ov,2 (m) Deflection limit L / n Support bearing L_s (mm)

Single span by default. Add supports to create more spans and enter each span length in sequence.

Support bearing is checked automatically when the selected panel has core compression data. Leave L_s empty to calculate the minimum required support width.

Add a separate panel configuration checked independently against the same loads.

Temperature

Outdoor summer ϑ_1,sum (°C) Indoor summer ϑ_2,sum (°C) Indoor winter ϑ_2,win (°C) Outdoor winter ϑ_1,win (°C)

EN 14509 §E.3.3: summer inside +25 °C, winter inside +20 °C. ΔT = outdoor − indoor.

Fasteners

Screw type Panel cover width (m) Extra vertical load (kN/m²) EI-M screw check (EN 15254-5 Annex B)

Fastener design uses the assembly orientation set in Panel · Selection. Screw head assumed on the external face; outer steel thickness governs.

Suspended facade

Check a suspended facade on the wall panel

Method of the Tenax Panel / RTU guideline: screw pull-out and shear, core compression, combined checks and the mounting-profile limits. Panel core, thickness and external steel thickness (0.5 or 0.6 mm) come from the panel selection, wind loads from the wall zones (suction zones load the screws in tension, pressure zones compress the core), the panel cover width from Fasteners. Valid for PIR and MW panels from one size below the reference (PIR150, MW200) upwards, steel 0.5 mm or more. The screws and the facade must be tested to give at least the Table 1 resistances.

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Awaiting Parameters

Enter the parameters, then press Calculate.

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READY TO SOLVE

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Zone	w_e (kN/m²)	Zone length (m)
Zone A
Zone B
Zone C
Zone D
Zone E