A residential development in Nalchik, Russia, uses 21PARKHOUSE® flexible stone to create a durable exterior with the appearance of natural masonry. Roman Travertine and Split Brick finishes bring contrast and rhythm to the multi-storey facade while meeting the performance requirements of a cold climate.


Project Information
Project: Nalchik Residence, Russia
Selected material: 21PARKHOUSE® flexible stone (soft stone)
Product finishes: Roman Travertine and Split Brick
Application: Exterior walls
Performance Specifications
Fire rating: A2
Stain resistance: Grade 2 for textured surfaces
Water absorption: 8%–10%
Artificial ageing resistance: 2,000 hours
Formaldehyde release: Not detected


Designed for Cold-Climate Exteriors
Winter conditions in Russia are severe, with temperatures frequently falling below 0°C. Flexible stone can withstand up to 100 repeated freeze-thaw cycles from -30°C to 50°C without surface powdering or cracking, making it suitable for interior and exterior applications exposed to sub-zero temperatures.
Rigid finishes such as ceramic tile are more vulnerable to freeze-thaw stress, which can cause cracking or detachment. Flexible stone is thin, breathable and resistant to deformation, so these stresses have very little effect on the installed surface.