SWISS KRONO OSB/3: the Cost-Effective AlternativeContiFinish®, CE


The Economic Alternative, Made from Mixed Wood

SWISS KRONO Kft. produces environmentally sound wood-based materials that are CE-certified according to EN 13986 and produced in compliance with EN 300. SWISS KRONO OSB/3 is an attractively priced yet strong alternative. This engineered wood product made from mixed woods lends itself for loadbearing and reinforcing purposes. Sporting a ContiFinish® surface, the sturdy panels are suitable for interiors. SWISS KRONO OSB/3 excels with excellent dimensional stability and strength. The many advantages of OSB/3 include the fact that, unlike conventional chipboard, even relatively thin panels are quite strong. Besides reducing the weight of structures, which also facilitates installation, this saves material.


Strong Boards with ContiFinish® Surfaces

An excellent product designed for normal loads and boasting excellent price/performance, SWISS KRONO OSB/3 is made using wood from spruce and Populus species.

Applications

The mixed-wood OSB/3 boards produced by SWISS KRONO Kft. are ideally suited for DIY uses and can be very easily worked with commercially available equipment and tools such as hand-held circular saws. The possibilities for using them are endless: as loadbearing ceiling boards, roof decking, wall cladding, flooring etc. Nor are they limited to timber construction; they also lend themselves for furniture and packaging.


  • Reinforcing interior wall cladding, also in moist rooms like bathrooms, laundry rooms and kitchens
  • Suitable for exterior use in sheltered places where they are not exposed to the weather
  • Loadbearing ceiling boards
  • Roof decking (instead of raw timber)
  • Wall cladding
  • Floors
  • Packaging, also for exports to countries with strict requirements like China and Australia
  • Shelves
  • Furniture

Strand direction

Major axis Minor axis
Nominal thicknesses of boards [mm] d 6
-
10
>10
-
18
>18
-
25
6
-
10
>10
-
18
>18
-
25
Strength values [N/mm²]
Stresses on board

Bending fm,k 18.0 16.4 14.8 9.0 8.2 7.4
Compression fc,90,k 10.0 10.0
Shear fv,k 1.0 1.0
Plate loading
Bending fm,k 9.9 9.4 9.0 7.2 7.0 6.8
Tensile force ft,k 9.9 9.4 9.0 7.2 7.0 6.8
Compression fc,k 15.9 15.4 14.8 12.9 12.7 12.4
Shear fv,k 6.8 6.8
Stiffness values [N/mm²]

Stresses on board
Bending modulus of elasticity Ema 4930 1980
Shear modulus Gra 50 50
Plate loading

Bending modulus of elasticityl Eca 3800 3000
Shear modulus Gva 1080 1080
a The characteristic stiffness values E05 and G05 are calculated as follows: E05 = 0.85 x E and G05 = 0.85 x G
General and building physics values
Bulk density acc. to EN 323 m ≥ 600 kg/m3
Max. deviations in board thickness ± 0.8 mm (ContiFinish®) | ± 0.3 mm (sanded)
Internal bond acc. to EN 319 perm σZy 0.34 0.32 0.30 0.34 0.32 0.30
Thermal conductivity acc. to EN 13986 λ 0.13 W/mK
Thickness swelling acc. to EN 317 ≤ 15%
Waste code EWC 03 01 05
Service classes acc. to EN V 1995-1-1 1 + 2
Reaction to fire acc. to EN 13501-1 D - s2, d0
Declaration of Performation no. acc. to CPR SKHU_OSB/3_CPR_002


Note: The characteristic values are for structural calculations acc. to EN 1995-1-1 and EN 1995-1-2 (EC5).

SWISS KRONO OSB/3
ContiFinish®, CE


Format [mm] Thickness [mm]

6 8 9 10 11 12 15 18 19 20 22 25 30 40

Pieces per pallet
2500 x 1250
150 114 104 96
87
80
64
54
52
48
44
38
32
24
2440 x 1220
154 120
106
96
87
80
64
54
52
48
44
38
32

2070 x 2800 80
60

40

36
30
26


22



2500 x 2500



48



36






2800 x 1250



104

78
60
52


42



3000 x 1250





75
60
52






5000 x 1250





38
30
26


22
18
16

5000 x 2500





20
16
14


12
8



Special formats and thicknesses on request

Laying and Boarding

  • When laid closely with butt joints in interior walls, leave room for expansion where the boards adjoin other structures.

Coating and Varnishing

  • SWISS KRONO OSB/3 with a ContiFinish® surface may be coated with a solvent-based PU (DD) or synthetic-resin varnish.
  • Sanded surfaces may be coated like normal wood (e.g. with varnishes, paints, oils, waxes and glazes).
  • It is advisable to apply at least three coats, sanding after the first one.
  • Application of at least three coats is recommended.
  • The only way to achieve an absolutely smooth surface is to apply filler.

Transport and Handling

  • Take steps to prevent the boards, and especially the unprotected edges, from absorbing large amounts of moisture during transport and installation.
  • Be careful not to damage the edges when lifting, moving and stacking boards (this applies especially to tongue-and- groove boards).
  • Check the labels or manufacturer’s documentation on-site to make sure that the following are correct: thickness, approved utilisation class, surface (sanded or unsanded) and edge type.
  • During installation, boards may be briefly leaned against a solid structure at a 70° angle.
  • Always carry individual boards in an upright (vertical) position.

Storage

  • Protect boards from exposure to significant moisture or very high relative humidity.
  • Avoid direct contact of the boards with the floor.
  • Only store outdoors temporarily, and if unavoidable cover stacks with watertight but water-vapour-permeable tarpaulins.
  • Always stack boards horizontally on pallets or wooden supports (spaced no more than 600mm apart).
  • Align wooden supports precisely with one another and parallel to the shorter side of the boards.
  • Lay the boards so their edges line up (with a maximum overhang of 15mm).

Acclimatisation

  • Precondition boards prior to installation.
  • Store boards for about three days under the same climatic conditions as at the installation site.
  • This adjustment to the ambient moisture at the installation site will prevent excessive shrinkage or swelling.

Sawing, Milling and Drilling

  • SWISS KRONO OSB/3 can be sanded, sawn and drilled just like solid wood and using all of the same tools.

Nailing, Stapling, Screwing and Gluing

  • SWISS KRONO OSB/3 can be attached to wooden studs and rafters using screws, nails or staples.
  • Use in accordance with DIN EN 1995-1-1 (EC 5).
  • Additionally bond or glue tongue-and-groove joints.
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