NEW ERA UNOBAT SPORTS FLOOR
SPECIFIER'S INFORMATION

D 10.2

D 10.2

 


JUNCKERS NEW ERA UNOBAT

D 1.0

General information

D 1.2

Batten System Information

D 10.2

Specifier's Information

D 10.2.1

Laying Instruction

Table 1

GENERAL DESCRIPTION OF FLOOR SYSTEM

The Junckers New Era Unobat Sports Floor System is based on 22 mm solid boards nailed to a resilient sub-floor of kiln dried softwood battens placed in adjustable polypropylene cradles incorporating a foam base.

The floor system is an area elastic type of sports floor with high shock absorbency combined with a high ball bounce, which makes it suitable for fast ball games as well as in multipurpose sports halls.

The minimum construction height is 60 mm up to 449 mm.
Refer to page 5/5 showing all system heights including breakdown of components.

The New Era Unobat System fully conforms to EN 14904 Class A4. (A3 for 63 mm thick battens).

Please note that full documentation of a floor system comprises the data in D 1.0, D 1.2
D 10.2 and D 10.2.1. See table 1.


SYSTEM SPECIFICATIONS

22 mm solid floor boards nailed to a substructure of plain softwood battens and polypropylene cradles.
Battens are either 22 x 45 x 2400 mm, 36 x 45 mm x 1800 mm, 48 x 45 mm x 1800 mm or 63 x 45 mm x 2100mm long.
Timber or polypropylene packing pieces are placed into the top of the cradle beneath the batten to level out undulations in the sub-floor.

The New Era Unobat Floor System is installed on a dry, load bearing sub-floor of concrete, lightweight concrete, wooden materials or an existing or synthetic sub-floor. The floor system does not require a sub-floor produced to a tight flatness tolerance and can eliminate the need for a screed.

The cradles are available in a wide range of heights to cater for most level deviations. A maximum of 15 mm packing can be placed into each cradle before the next size cradle is required (Max. 12 mm packing for S Zero cradles and 22 mm battens).

Batten distance of 411mm centres. Cradles are spaced at 300 mm centres when using the 22 x 45 mm batten, 450 mm centres when using the 36 x 45 mm batten, 600 mm centres when using the 48 x 45 mm batten and at 700 mm centres when using the 63 x 45 mm batten.

Batten centres and cradle centres can be reduced to strengthen the undercarriage for use with retractable seating units etc. Please contact Junckers Technical Department for more information.

This floor system can also accommodate under floor heating which is suspended between batten rows.


FLOOR COMPONENTS - JUNCKERS NEW ERA UNOBAT SPORTS FLOOR

 

  1. Junckers 2-strip solid hardwood floor boards for sport
    Thickness x width x length
    22 x 129 x 3700 mm

    Wood Species, grade and surface:
    See data sheet B 2.0
  2. Nails
    2.2 x 45 mm machine J-nails or 50 mm Portanails
  3. New Era Unobat Batten
    22 x 45 x 2400 mm
    36 x 45 x 1800 mm
    48 x 45 x 1800mm
    63 x 45 x 2100mm

    Batten distance: c/c 411.1 mm
  4. Cradles
    Polyproplylene in various sizes incorporating 10 mm thick Evazote polyethylene foam pad.
    Timber packing pieces: 2, 3, 6, 12 and 18 mm.
    Polypropylene packing pieces: 1.5, 3, 6 and 12 mm.
  5. Moisture barrier
    Min. 0.20 mm PE membrane.
  6. Distance to wall
    1.5 mm per running metre across width and 1 mm per running metre along length of the floor, but both min. 15 mm. Is also required at fixed points, e.g. columns.

                   Fig. 1


FLOOR BOARDS

The floor boards are nailed to the battens according to a fixed 10-board rule.

The floor boards are laid in a continuous pattern with well-defined distribution of board header joints from row to row of 2 x the batten distance, i.e. 822.2 mm with c/c 411.1 mm.

In that way all board header joints are supported.


Fig. 2

10-BOARD RULE

The 10‑board rule indicates the measurement across 10 floor boards when laid and is primarily based on the expected max. relative humidity of the building when in use, See D 1.2 - 10-board rule

Fig. 2 illustrates the 10‑board measurement in relation to the relative air humidity. E.g. an expected relative humidity of max. 65% RH normally give a 10-board measurement of approx. 1294 mm. The limit of the 10-board measurement, which also depends upon the floor size, is shown as dotted lines.

The measurement is achieved by inserting temporary spacers between the boards during the installation process. Temporary spacers in various sizes are available from your supplier. In case of doubt please contact Junckers Technical Service.


RIGIDITY AND LOAD-BEARING STRENGTH

The New Era Unobat Sports Floor System is designed to bear the expected loads in connection with sports and similiar activities.

Table 2 shows the tested and approved maximum point load-bearing strength at certain load areas and batten distance. In a heavy load situation, e.g. back stop units, stages or retractable seating, it may be necessary to decrease batten centres.

Table 2

 

 

Batten distance c/c 411

Diameter, 25 mm: 3.5 kN (≈ 350 kg)

100 x 100 mm: 4.5 kN (≈ 450 kg)

Table 3 shows the floor system in relation to the load classes in ENV 1991-2-1:1995, where the load-bearing strength requirements are complied with and the floor has an acceptable rigidity. The floor system's rigidity in relation to wheel loads is also shown.

For further definition of load classes and types, see technical information sheet, D 1.0 - Stiffness and load bearing strength of floors.

Table 3

Loading types

Loading category

Area- and Point load

Wheel load

C4: Assembly halls for physical activity, e.g. gyms/theatres

Approved*

Approved**

C5: Assembly halls which can be crowded, e.g. sports halls incl. stands.

Approved*

Approved**

* Point load area min. 200 x 200 mm
** Wheel loads, see D 1.0 - Table 2


MOISTURE AND THERMAL INSULATION

A moisture barrier is always installed on all concrete subfloors, min. 0.20 mm PE membrane, directly on the concrete.

Before the floor is laid the residual moisture in the concrete must not exceed 90 % RH (UK 75 % acc. To BS 8201).

For thermal insulation see D 1.2 - Thermal insulation.


Fig. 3

BUSHINGS

Bushings must be fitted so that both vertical and horizontal movement of the floor is unimpeded. The size of the internal opening of the bushing must exceed that of the post by minimum 40 mm.

At the outermost edges of the floor all bushings are mounted eccentrically towards the centre of the floor in relation to the post-sockets in the concrete, so that the floor can expand freely. See Fig. 3.

Place extra support battens at net poles, pipes, etc


CONSUMPTION OF MATERIALS

Net consumption for 1000 m2 New Era Unobat batten system

Batten distance 411 mm:

 

Floor boards

1000 m2 + approx. 2 %

Machine J-nails, 2.2 x 45 mm

20000 pcs.

22 x 45 mm, 36 x 45 mm, 48 x 45 mm or 63 x 45 mm softwood battens

2700 m

New Era S Zero Cradles with 36 x 45 mm battens
New Era Cradles with 36 x 45 mm battens
New Era Cradles with 48 x 45 mm battens
New Era Cradles with 63 x 45 mm battens
(Packing pieces will be dependant on sub-floor survey)

10000 pcs.
6600 pcs.
5000 pcs.
4000 pcs.

Loose tongues

67 pcs.

Moisture barrier, min. 0.20 mm PE membrane

1100 m2 incl. overlaps

Junckers Sylvafix, to glue wooden pieces and loose tongues.

15 bottles (15 x 0.75 litre)

 


NEW ERA SYSTEM DETAILS

ULTRA SLIM SYSTEM - S ZERO CRADLE
22 mm floor board with 22 mm batten
Construction height (incl. floor board)

Cradle centres

No of cradles per m2 of flooring
(411 mm batten centres)

Lin. metres of batten per m2 of flooring
(411 mm batten centres)

60 - 72 mm

300 mm

10 no

2.7 m

 S 1 - 15 Cradles

22 mm floor with 36 mm batten

22 mm floor with 48 mm batten

22 mm floor with 63 mm batten

Cradle centres

450 mm

600 mm

700 mm

Cradles required pr. m2

6.6 no

5.0 no

4.5 no

Linear metres of batten pr. m2 of flooring. (411 mm batten centres)

2.7 m

2.7 m

2.7 m

Dual Height Units

Construction height and packing range (incl. floor boards) 

S1

74 - 103 mm

86 - 115 mm

101 - 130 mm

S2

103 - 133 mm

115 - 145 mm

130 - 160 mm

S3

119 - 148 mm

131 - 160 mm

146 - 175 mm

S4

138 - 167 mm

150 - 179 mm

165 - 194 mm

S5

167 - 197 mm

179 - 209 mm

194 - 224 mm

S6

183 - 212 mm

195 - 224 mm

210 - 239 mm

S7

212 - 242 mm

224 - 254 mm

239 - 269 mm

S8

228 - 257 mm

240 - 269 mm

255 - 284 mm

S9

257 - 287 mm

269 - 299 mm

284 - 314 mm

S10

273 - 302 mm

285 - 314 mm

300 - 329 mm

S11

302 - 332 mm

314 - 344 mm

329 - 359 mm

S12

318 - 347 mm

330 - 359 mm

345 - 374 mm

S13

347 - 377 mm

359 - 389 mm

374 - 404 mm

S14

363 - 392 mm

375 - 404 mm

390 - 419 mm

S15

392 - 422 mm

404 - 434 mm

419 - 449 mm

NOTE: See under section "CRADLE COMPONENTS REQUIRED" for required components corresponding to the different heights.



CRADLE COMPONENTS REQUIRED

 

S Zero: 16 mm cradle

S1:  16 mm /31 mm dual height cradle
S2:  45 mm / 60 mm dual height cradle

S3:  55 mm base, 6 mm /20 mm dual height top
S4:  74 mm base, 6 mm / 20 mm dual height top
S5:  74 mm base, 35 mm / 50 mm dual height top

S6:  74 mm base, 45 mm spacer, 6 mm / 20 mm dual height top
S7:  74 mm base, 45 mm spacer, 35 mm / 50 mm dual height top

S8:  74 mm base, 2 x 45 mm spacers, 6 mm / 20 mm dual height top
S9:  74 mm base, 2 x 45 mm spacers, 35 mm / 50 mm dual height top

S10: 74 mm base, 3 x 45 mm spacers, 6 mm / 20 mm dual height top
S11: 74 mm base, 3 x 45 mm spacers, 35 mm / 50 mm dual height top

S12: 74 mm base, 4 x 45 mm spacers, 6 mm / 20 mm dual height top
S13: 74 mm base, 4 x 45 mm spacers, 35 mm / 50 mm dual height top

S14: 74 mm base, 5 x 45 mm spacers, 6 mm / 20 mm dual height top
S15: 74 mm base, 5 x 45 mm spacers, 35 mm / 50 mm dual height top

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