Interactive
Wall explorer.
Every safe façade is a stack of carefully chosen, carefully installed layers. Rotate the wall, pull it apart and inspect each layer’s job and fire classification.
Drag to rotate · click a layerOutside ↑
Layer detail
Select a layer
Fire class—
Typical depth—
Pick any layer in the list or the 3D view to see what it does and how we install it.
Fire classes
Reading the labels.
Reaction-to-fire classes come from BS EN 13501-1.
A1
Non-combustible
Makes no contribution to fire. Stone wool, aluminium, fibre cement and clay brick are typical.
A2-s1,d0
Limited combustibility
Very limited contribution to fire, low smoke (s1) and no flaming droplets (d0). The minimum for external walls on relevant buildings over 18m.
B–F
Combustible
Not permitted in the external walls of relevant buildings over 18m. These materials are what remediation removes.