Wooden Frame Wall and concrete inside cladding

Our solution of mixed wall wooden skeleton / concrete

Conception of Escaffre Bois, patent INPI in 2020. Our solution of Mixed Wooden Frame Wall is at High Thermal Inertia thanks to it integrate Concrete inside Cladding !

>> Central figures :

A simple and revolutionary design

  1. The concrete skin is situate on the inside, it can receve a painting or a slim sealant of decoration or even a dubbing :
    • Great resistance to intern shock Base MOB PIB
    • Integration possiblity of electic and of sheath box in wait (see 3D plan with sheet BA 13 stuck)
  2. The panneau of bracing in veneer is in pine from Landes
  3. The wooden skeleton is in KVH or LC (minimal thickness 160 nm). The filling is in Wood Fibre (50 kg/m3 – Lambda 0,036)​
  4. The outside insulation is in Wood Fibre 130 kg /m3 – Lambda 0,042 thickness 60mm to 100mm). 2 possibilities of Outside Finish :
    • sealant in Wood Fibre
    • and/or Wood Cladding (cleat support mounted direct in factory) / Metal / Composite

Speed and Quality of design

Wall entirely precast in integranting workshop :
> The inside contrete skin
> isolated wooden skeleton
> l’isolation extérieure prête à recevoir la finition (enduit, bardage…)
> the systeme of wall fixation to the support (concrete slab or wood flooring)

By it composition and it innonvative design, the solution of mixed WFW PIB bring an optimal quality of manufacture. In addition an ease and speed of pose all in reasuring the fixations on the support and on the junction, wall/wall

Composition : from the outside to the inside

1
Painting, slim sealant

BA 13 stuck or dubbling

2
Concrete
60 or 80mm
3
Vapor barrier
4
Veneer bracing

CTBX 9mm

5
Wooden skeleton
Filling wood fibre 160mm
6
Over-insulation wood fibre
60 to 100mm
7
Outside sealant or cladding

Thermal performance

  • Optimal comfort in winter with insulation in Wood Fibre (160 mm minimal in the skeleton +60mm minimal in outside)
  • The dephasing is get with an insulation in OTI (Outside Thermal Insulation) in Wood Fibre
  • With the combination Wood Fibre/ Concrete cladding a thermal comfort is get in winter as well as in summer = Dephasing of 14h and mittigationof the thermal amplitude in 100 (the inside temperature vary 100 times least than the outside temperature)

Fire resistance

(According to the appreciation of Laboratoire CSTB)
  • Fire protection of the Wooden Skeleton thanks to the armed concrete skin.
  • Fire protection of the Wooden Skeleton thanks to the armed concrete skin.
  • Firewall 60 minutes (REI 60) with armed concrete skin of 8 centimetres.
  • Possibility fire proctection on the outside face

Acoustic advantage

  • Acoustic weakening optimized thanks to the combinaison concrete skin and insulation in Wood Fibre
  • Sealant wall : Rn (C;CTr) = 66 Decibel​