TWIN HERRINGBONE
PRODUCT INFORMATION
B 11.0
B 11.0
PRODUCT DESCRIPTION
Junckers 14 mm (9/16”) and 22 mm (7/8” ) Solid Hardwood Twin Herringbone floors are factory finished and ready to use right after installation.
Each floor board consists of two rows of staves. One row with a full length stave and one row with two half length staves. The staves are assembled by a glued double dovetail construction.
Each floor board is tongued and grooved on all four sides, and is available as right and left hand floor boards. See Fig. 1.
Fig. 1
PRODUCT DATA / TOLERANCES
Nominal board dimensions
Thickness: 13.8 and 21.8 mm (±0.2 mm)
Width: 129.0 mm (5 5/64”) (±0.2 mm)
Length: 516.6 mm (20 11/32”) (±0.2 mm)
Drying method
Beech, all variants: Press dried.
Oak and Ash, all variants: Kiln dried.
Average moisture content, MC:
Beech, Oak and Ash (all variants except Black Oak): 8 % (±2 %).
Black Oak: 9 % (±2 %).
NH3 treatment of Black Oak and Beech Sylvaket/Sylvared means that MC can´t be measured by using a conventional moisture meter but must be measured by the “dry weight method”.
Precision engineering
Landing Deviation: 0.2 mm (0.3 mm in localized areas).
Floor Board ends are right angled at ±0.3 mm.
PRODUCT RANGE
|
Product |
Grade |
Surface |
Product variants |
|
Beech |
Harmony |
Ultra matt lacquered |
Colours* |
|
Beech SylvaRed |
Harmony |
Ultra matt lacquered |
|
|
Ash Nordic (Only 22 mm) |
Harmony |
White pigmented and |
|
|
Black Oak |
Harmony |
Clear Oil |
|
* Please check current product program at our web page.
TECHNICAL PROPERTIES
Resistance to Indentation:
Oak (all variants): Approx. 3,4 Hardness Brinell
Ash (all variants): Approx. 3,4 Hardness Brinell
Beech (all variants): Approx. 3,7 Hardness Brinell
Slip Resistance, DIN 18032/2 (preliminary):
Lacquered & oiled: Approx. 0.4
Fire Classification, (DIN EN 13501-1):
Surface treated: Cfl – S1
Untreated surface: Dfl – S1
Thermal Conduction, (Transmission coefficient):
Approx. 0.17 W/mK
Heat Resistance: Approx. 0.08 m² K/W
|
Light reflection value (LRV) |
||
|
|
Ultramatt |
Silkmatt |
|
Ash |
- |
49 |
FACTORY SURFACE TREATMENT
LACQUERED
Beech, Oak & Ash:
Priming: Several coats of UV-light curing primer.
Top finish: Two-component polyurethane lacquer, silk- or ultra matt.
Total film thickness: Min. 40 µ.
Beech SylvaKet and SylvaRed:
Pre-treatment: Coloured throughout with a NH3-treatment to achieve a light brown colour.
Before lacquering Beech SylvaRed is also toned with a reddish stain. If Beech SylvaRed is sanded to bare wood, it will appear like Beech SylvaKet.
Priming: Several coats of UV-light curing primer.
Top finish: Two-component polyurethane lacquer, silk- or 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.
Other colours:
Priming: Coloured stain.
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.
PACKING AND WEIGHT
Wrapped in LDPE plastic and packed as noted below.
|
Floor board dimensions [mm] |
Number of floor- |
Number of floor- |
m² per pack |
Kgs per pack |
Sq.ft. per pack |
LBS per pack |
|
14 x 129 x 516.6 |
15 |
20 |
1.33 |
13.6 |
14.35 |
30.0 |
|
22 x 129 x 516.6 |
15 |
18 |
1.20 |
19.4 |
12.91 |
42.8 |