PRODUCT INFORMATION
Solid Hardwood Flooring | Product Information
B 2.0
PRODUCT DESCRIPTION
Junckers 22 mm solid Hardwood Parquet floors are factory finished and ready to install in accordance to Junckers Laying Instructions. See C 1.0 and D1.0
Each floor board is assembled from two rows of staves by a glued double dovetail construction.
Each floor board is tongued and grooved on all four sides.
Fig. 2
Strip made of foamed PVC with closed cells to absorb natural movements in the hardwood floor.
The strip measures 3x8mm and installed it provides a 2 mm wide joint, which varies over the year according to changes in the relative humidity.
PRODUCT RANGE, COMMERCIAL / RESIDENTIAL
| Product | Grade | Surface | Product variants |
|
Beech |
Classic Harmony Variation | Ultra matt lacquered Silk matt lacquered Clear oil Untreated | Ships decking* Bevel (Oak & Ash) Colours** Texture** |
| Ash Nordic Beech Nordic Oak Nordic | Classic Harmony Variation | White pigmented and ultra matt lacquered | Ships decking* Texture** |
| Black Oak | Harmony Variation | Ultra matt lacquered Clear oil Untreated | Ships decking* Texture** |
| Maple | Classic Variation | Ultra matt lacquered Silk matt lacqured Clear oil Untreated | Ships decking* |
| Oak Pearl | Harmony | Metallic-pigmented and ultra matt lacquered | Ships decking* |
*See Fig. 2
**See possibilities in current Product selector.
PRODUCT RANGE, SPORT
| Product | Grade | Surface |
| Beech SylvaSport Beech Sylvaket Ash |
Champion Premium Club | Ultra matt lacquered Silk matt lacquered Untreated |
| Maple | Champion Club | Ultra matt lacquered Silk matt lacquered Untreated |
| Sylva Squash Beech Maple Ash |
Champion | Silk matt lacquered Untreated |
TECHNICAL PROPERTIES
Resistance to Indentation
Oak (all variants): Approx. 3.4 Hardness Brinell
Ash (all variants): Approx. 3.4 Hardness Brinell
Maple (all variants): Approx. 3.4 Hardness Brinell
Beech (all variants): Approx. 3.7 Hardness Brinell
Slip Resistance, (preliminary): Factory lacquered: Approx. 0.4 (DIN 18032/2) and Approx. 85 (EN 14904)
Factory oiled: Approx. 0.4 (DIN 18032/2)
Fire Classification, (DIN EN 13501-1): Cfl – S1
Thermal Conduction, (Transmission coefficient): Approx. 0.17 W/mK
Heat Resistance: Approx. 0.13 m2 K/W
Light Reflection (Reflectance for diffuse light):
Beech Classic, lacquered: 48% Beech SylvaKet Classic, lacquered: 22%
Electrostatic Charging (kV), Beech:
Factory lacquered:
25% RH = 3.5
50% RH = 2.0
65% RH = 1.0
Factory oiled: 25% RH = 1.0
Oiled Beech is suitable for use in rooms with computers. (DIN 54345/1-prEN 1815)
FACTORY SURFACE TREATMENT
Lacquered
Beech, Beech SylvaKet, Beech SylvaRed, Beech SylvaSport, Oak, Ash & Maple:
Priming: Several coats of UV-light curing primer.
Top finish: Two-component polyurethane lacquer, silk- or ultra matt.
Total film thickness: Min. 40 µ.
Ash Nordic, Beech Nordic & Oak Nordic:
Priming: White toned stain. Intermediate treatment: Several coats of UV-light curing lacquer.
Top finish: Two-component polyurethane lacquer, ultra matt.
Total film thickness: Min. 40 µ.
Oak Pearl:
Priming: Water based transparent stain.
Intermediate treatment: Several coats of UV-light curing lacquer.
Top finish: Two-component polyurethane lacquer, ultra matt.
Total film thickness: Min. 40 µ.
Black Oak:
Pre-treatment: NH3-treatment to achieve the dark colour.
Intermediate treatment: Several coats of UV-light curing lacquer.
Top finish: Two-component polyurethane lacquer, ultra matt.
Total film thickness: Min. 40 µ.
Oiled
Priming: Surface saturation using oxidative drying urethane oil.
Top finish: Oxidative drying urethane oil.
Total oil consumption: Addition to a full surface saturation.
Untreated
Final sanding to grit 150.
Squash
Final sanding to grit 40.
Lacquered: Final sanding to grit 40 + 1 coat of a silk matt two-component polyurethane lacquer.
PACKING AND WEIGHT
Wrapped in polythene.
Bundle / Length / m2
8 boards / 3700 mm / 3.82 m
4 boards / 3700 mm / 1.91 m
8 boards / 1830 mm / 1.89 m
One layer in bundles of 1830 mm length may consist of two boards of 900 mm.
Weight kg/m2
Beech (all variants): 16.2 kg
Oak (all variants): 15.7 kg
Ash (all variants): 15.2 kg
Maple: 15.5 kg
FIG. 1
PRODUCT DATA / TOLERANCES
Nominal Board Dimensions Thickness: 21.8 mm (±0.2 mm) Width: 129.0 mm (±0.2 mm) Length: 3700 / 1830 / 900 mm (±1.0 mm)
Drying Method
Maple and Beech, all variants: Press dried.
Oak and Ash, all variants: Kiln dried.
Moisture Content
Beech, Maple, Oak and Ash (all variants except Black Oak): Average moisture content 8 % (±2 %).
Black Oak: Average moisture content 9 % (±2 %)
Precision Engineering
Landing Deviation: 0.2 mm (0.3 mm in localised areas).
Board ends are right angled at ±0.3mm.