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Construction Systems / Optimal+
Construction system

Optimal+

Technical details

  1. Fire-resistant plasterboard (GKF): 15 mm
  2. Wood sub construction installation level: 60 mm
  3. Thermal and sound insulation (rock wool, λ = 0.038 W/m2K) at installation level: 50 mm
  4. OSB board with glued connections: 15 mm
  5. Thermal and sound insulation (rock wool, λ = 0.035 W/m2K) between load-bearing construction: 160 mm
  6. Wooden load-bearing construction: 160 mm
  7. Fibreboard: 15 mm
  8. Thermal and sound insulation (rock wool, strip λ = 0.040 W/m2K): 140 mm
  9. Reinforced mortar and grid: 4 mm
  10. Vapour permeability exterior façade layer: 2 mm

THICKNESS: 415 mm
THERMAL INSULATION: 0.11 W/(m2K)
SOUND INSULATION: Rw ≥ 50 dB
FIRE RESISTANCE: REI 60 min
PHASE DELAY: +11 h

The Optimal+ system is the upgrade of the Optimal system with thicker construction of the exterior walls and thicker thermal insulation of the roof. In most cases, we meet the standards of passive construction with this system, if the proper construction of the builders’ joinery and the orientation on the plot is ensured. When choosing this system, you may also obtain non-repayable grants from the Environmental Fund in accordance with the currently applicable terms.