Idea

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LVL Roof rafter

Description

Slender roof rafter for high-insulated roofs, rigid Kerto® LVL Qp-beam restrains movements.

Key benefit

Cost efficient long free span with less material consumption

Material list

1. Roofing
2. 21 mm MW Spruce MG Roof paneling
3. Air gap 120 mm
4. 50 mm windproof layer + insulation
5. 51x620 Kerto-Qp c/c 1200 + 450 mm mineral wool insulation
6. Water vapor membrane
7. 48x48 solid wood cross-battens + 50 mm mineral wool insulation
8. Ceiling paneling

Ecological values

Links

Specification

  • Economical span (mm) 9600
  • Thickness (mm) 720
  • Airbourne sound reduction factor (dB)
  • Impact sound transmission (dB)
  • Resistance to fire class
  • Thermal properties 14.29 R 0.07 U

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