ESB boards, who has experience with them?

  • Erstellt am 2021-10-14 18:38:23

Hausbau 55

2021-10-14 18:38:23
  • #1
Good evening, our carpenter is supposed to make the walkable area of the attic of our bungalow ("Wohnraumbinder") with the dimensions 9.2 x 3.5 m walkable. Access is via a pull-down ladder and this area is only to be used as storage for various things. The carpenter suggests using 22mm ESB boards with tongue and groove system as material (cheaper compared to OSB). The insulation between the rafters is 24 cm and for ventilating the ESB boards, the carpenter wants to create a 4 cm gap using battens. According to the static calculation, this area is also to be structurally designed as a panel with 22 mm boards.
Who has experience with ESB boards?
The carpenter wants to nail the battens to the bottom chord of the trusses and then lay the boards perpendicular to them. The truss spacing is 92 cm. Intuitively, I would prefer to lay the battens perpendicular to the trusses with a small spacing and then lay the boards again perpendicular to them. What spacing of the battens would you recommend?
Many thanks in advance!
 

Grundaus

2021-11-09 13:13:27
  • #2
24 cm insulation is a bit too little anyway. OSB is out of the question because it is not vapor-permeable. ESB is a bit better but only with a cross substructure for ventilation. Why not rough-sawn planks?
 

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