SWIMMING POOL TILES - V Meyer A/S

pools

SWIMMING POOL TILES

Uniclass

L512

CI/SfB

(42) Sg3

August 2007

Epic

E223

pools

index

2

pools - index

CERAMIC

TECHNICAL

04 introduction

06 pools

12 cladding

16 fi ttings

24 technical

specifi cation charts,

setting out, colour

notation & dda

installation and cleaning

pools

06

fi ttings

16

cladding

12

technical

24

introduction

company credentials

Founded in 1901 H & R Johnson Ltd. is

the leading manufacturer and supplier of

ceramic tiles in the UK, with a long history of

market leadership and industry production

development.

Part of the Norcros Group we have sister

manufacturing bases in South Africa,

Greece and India with additional offi ces in

Dubai, USA and Australia.

In 2001 an investment in excess of

£35 million allowed us to develop a new fully

automated production facility on a single

integrated site in Stoke-on-Trent.

Our UK factory produces over 5 million

square metres of ceramic tiles for use in the

UK and overseas markets.

H & R Johnson products are used in a wide

range of commercial and non commercial

projects and we supply ceramic tiles to

almost every country of the world.

Our strength is based on a comprehensive

portfolio of leading edge quality products

combined with very high levels of

customer service. As manufacturers

we have extremely stringent quality and

environmental control standards.

4

pools - introduction

In 2006 we created and opened the award

winning Material Lab design resource

centre at 10 Great Titchfi eld Street,

London, offering designers and architects

an environment where products such as

ceramics, glass, wallpaper, carpet tiles,

trims, eco-resins, fabrics and many more

materials can be explored.

We have a longstanding commitment to

environmental management and have had

a formal environmental policy since 1992.

Our environmental management system is

certifi ed against the ISO14001 standard.

We were the fi rst ceramics company within

the whitewares sector to gain certifi cation

against the ISO14001 standard in 1998

and have since successfully upgraded our

certifi cation to meet the latest requirements

of ISO14001:2004. We are the only UK

wall tile manufacturer to have ISO14001

accreditation.

The company has never been subject to

any prosecutions or formal environmental

regulatory action for any breaches of

environmental legislation.

In 1997 H & R Johnson were awarded

the Queens Award for Environmental

Achievement for our ceramic waste

recycling scheme.

To our knowledge we are the only

manufacturer in the world to operate such

a scheme. This scheme which has been in

continuous use since 1992 also enabled

H & R Johnson to win the Manufacturing

Industry Achievement Award for

Environmentalist of the Year in 1997.

Approximately 25% of the material used to

produce our wall tiles comes from recycled

ceramic materials from our own and other

local companies.

Various recycling and energy saving

schemes throughout our production and

offi ce processes allow us each year to:

Save 20,000 tonnes of ceramic landfi ll from

our own and local ceramic factory waste

saving 360 tonnes of CO in transportation

2

of materials

Save 1250 tonnes of virgin timber

Use 92% recycled materials in our

packaging

Re-use 32 million litres of water (30% of the

total factory usage)

Save 42 million kWh of energy

Save 2400 tonnes of CO2 Our energy and material savings are

detailed in our “Ceramic Tile Environmental

Strategy” document.

Recycling - responsible manufacturing

Material Lab - London

Crosby Leisure Centre

St Edmundsbury Leisure Centre - Suffolk

pools

The Architectural range of swimming pool tiles are pressed glazed porcelain and offer much greater

accuracy of size and strength of body when compared to extruded swimming pool tank tiles.

The dimensional accuracy of the pool tank tiles allows creation of a 250 x 125 x 8mm standard module

with the incorporation of a 3mm wide joint. The use of a 3mm wide joint results in fi nancial savings on

installation and grouting costs. The package is supplemented by a comprehensive range of pool fi ttings

which allow the creation of almost any pool detail.

Product information (see example below) is provided to assist in the specifi cation and suitability of

products. These recommendations are generic only, please contact our technical advisory service for

specifi c guidance on fi tness for purpose applications Tel: 0845 210 3000.

SPECIFICATION

Wall Floor Other Material Finish

Internal & External - Pools Glazed Porcelain Gloss

pools

architectural gloss

AVAILABILITY

250 x 125 x 8mm

8

pools - architectural gloss

ARCH3 Grey

ARCH4 Green

ARCH6 Yellow ARCH11 Brick Red

ARCH12 Emerald Green

SPECIFICATION

ARCH14 Cream



ARCH1 White

ARCH2 Black

ARCH8 Orient Blue

ARCH9 Dark Blue ARCH15 Sapphire Blue

gloss

Easton Pool - Bristol

gritted

Oswestry Hydrotherapy Pool - Shropshire

ARCG1 White Gritted

ARCG2 Black Gritted

ARCG8 Orient Blue Gritted

ARCG9 Dark Blue Gritted ARCG15 Sapphire Blue Gritted

SPECIFICATION


Internal & External - Pools Glazed Porcelain Gritted

AVAILABILITY

250 x 125 x 8mm

pools

architectural gritted

Gritted fi nish Architectural tiles are

suitable for pool end wall turning

pads and pool fl oors where the water

depth is 450mm to 850mm

(see page 27 for more information).

pools - architectural gritted

11

Peabody Trust - London

cladding

Our range of brightly coloured Architectural glazed porcelain tiles are perfectly suited to external cladding

projects such as underpasses, pedestrian subways or other areas subject to frost.




SPECIFICATION



cladding


ARCH3 Grey

ARCH4 Green

ARCH6 Yellow ARCH11 Brick Red

ARCH12 Emerald Green

ARCH14 Cream

ARCH1 White

ARCH2 Black

ARCH9 Dark Blue ARCH15 Sapphire Blue

SPECIFICATION

ARCH8 Orient Blue



pools

architectural cladding

AVAILABILITY

250 x 125 x 8mm

pools - architectural cladding

15

fi ttings

All pool edge fi ttings are pre-fi re rectifi ed for accuracy.




SPECIFICATION


- Internal Pools Un-Glazed Vitrifi ed Natural

FLOOR VALUES

Pendulum R Value V Value Wet Ramp Traffi c

- - - - Commercial

pools

fi ttings

18

pools - fi ttings

5730 Ivory/Blue Finger Grip Edging

5730 Ivory/Black Finger Grip Edging

250 x 125 x 28mm



125 x 125 x 28mm



250 x 250 x 28mm



250 x 250 x 28mm



125 x 125 x 28mm



250 x 250 x 28mm



250 x 125 x 28mm



250 x 250 x 28mm

SPECIFICATION


- Internal Pools Un-Glazed Vitrifi ed Natural

FLOOR VALUES


- - - - Commercial



250 x 125 x 50mm



125 x 125 x 50mm

5620 Ivory/Blue Step Edging

5620 Ivory/Black Step Edging

250 x 125 x 13mm



125 x 125 x 13mm

continued>>



125 x 125 x 50mm



250 x 250 x 50mm



125 x 125 x 13mm



250 x 250 x 13mm

fi ttings

Easton Pool - Bristol

fi ttings

Oswestry Hydrotherapy Pool - Shropshire

3130 Ivory Ribbed Tile

250 x 125 x 13mm

4200 Blue Drainage Channel

4200 Ivory Drainage Channel

250 x 125 x 25mm

4300 Ivory Drainage Channel

250 x 250 x 25mm

3136 Ivory Ribbed Tile Round Edge

Long Side

250 x 125 x 13mm

4210 Blue Drainage Channel Outlet

4210 Ivory Drainage Channel Outlet

250 x 125 x 25mm

4310 Ivory Drainage Channel Outlet

250 x 250 x 25mm

Drainage channel outlets can receive standard stainless steel shower fi ttings.

3525 Blue Shower Incline

250 x 125 x 30mm


200 x 125 x 30mm


125 x 125 x 30mm

continued>>


150 x 125 x 30mm

3539 Blue Shower Incline Intl Corner

125 x 125 x 30mm

SPECIFICATION


- Internal Pools Various Natural

FLOOR VALUES


- - - - Commercial

pools

fi ttings

pools - fi ttings

21

pools

fi ttings

22

pools - fi ttings

4000 ARCH8 Orient Blue Channel Skirting

4000 ARCH1 White Channel Skirting

250 x 100 x 40mm

4112 ARCH8 Orient Blue 3-way Intl Cove

4112 ARCH1 White 3-way Intl Cove

50 x 50 x 9mm

4111 ARCH8 Orient Blue Intl Cove

4111 ARCH1 White Intl Cove

250 x 50 x 9mm

4040 ARCH8 Orient Blue Extl Corner

4040 ARCH1 White Extl Corner

250 x 40 x 10mm

9983 ARCH8 Orient Blue 3-way Extl Corner

9983 ARCH1 White 3-way Extl Corner

40 x 40 x 9mm

9826 ARCH8 Orient Blue Extl Corner

9826 ARCH1 White Extl Corner

250 x 50 x 9mm

9502 ARCH8 Orient Blue Grating Support

9502 ARCH1 White Grating Support

250 x 115 x 10mm

4113 ARCH8 Orient Blue 3-way Cove

4113 ARCH1 White 3-way Cove

72 x 72 x 9mm

SPECIFICATION


Internal & External - Pools Various Gloss

RES (Round Edge Short Side)

250 x 125 x 8mm

ARCS1 White

ARCS2 Black

ARCS8 Orient Blue

ARCS9 Dark Blue

ARCS15 Sapphire Blue

REL (Round Edge Long Side)

250 x 125 x 8mm

ARCL1 White

ARCL2 Black

ARCL8 Orient Blue

ARCL9 Dark Blue

ARCL15 Sapphire Blue

Depth Markers and Lane Numbers

Bespoke markers/numbers available to special order.

Please contact our technical advisory service for more details Tel: 0845 210 3000.

fi ttings


technical

colour notations

Code

ARCH1

ARCH2

ARCH3

ARCH4

ARCH6

ARCH8

ARCH9

ARCH11

ARCH12

ARCH14

ARCH15

24

Colour

White

Black

Grey

Green

Yellow

Orient Blue

Dark Blue

Brick Red

Emerald Green

Cream

Sapphire Blue

Refl ectance Yl

85.95

4.47

45.26

42.52

57.55

59.27

14.99

21.22

18.06

67.97

6.66

NCS Lightness

0.94

0.12

0.70

0.67

0.79

0.80

0.33

0.43

0.38

0.86

0.17

NCS

0500-N

9000-N

3000-N

2030-B90G

1070-Y

1020-B

4040-R80B

4030-Y70R

4040-G

1020-Y10R

4550-R70B

Pantone

White

Black

Cool Grey 6

337

116

290

NM 7455

7522

NM 3425

155

2758

Pantone

Architectural

11-0602

19-0303

16-0000

15-5812

14-0852

13-4809

18-3928

17-1532

18-6022

13-0915

19-3939

BS4800

-

-

00 A 05

NM 16 C 33

NM 10 E 53

NM 18 E 50

NM 20 D 45

NM 04 C 37

NM 14 E 53

NM 08 B 15

NM 22 D 45

RAL Design

000 90 00

000 15 00

000 70 00

160 70 25

085 80 80

230 70 20

270 50 30

040 50 30

160 40 30

080 80 30

290 20 35

Note: These results are from H & R Johnson internal test reports and are to be used for guidance only. All colour notations marked as

NM are Nearest Match.

technical - colour notations

RAL K5

9010

9005

NM 7004

NM 6027

1012

NM 5024

5023

NM 8002

NM 6024

1014

5022

physical properties

pool and cladding tiles

Test Standard Requirement Typical Test Value

fi ttings

Length/Width 10545-2 (BS6431:Part10/EN98) ±0.75% ±0.5%

Thickness 10545-2 (BS6431:Part10/EN98) ±5% ±5%

Straightness of side 10545-2 (BS6431:Part10/EN98) ±0.5% ±0.4%

Rectangularity 10545-2 (BS6431:Part10/EN98) ±0.6% ±0.5%

Surface fl atness 10545-2 (BS6431:Part10/EN98) ±0.5% ±0.5%

Water Absorption 10545-3 (BS6431:Part11/EN99) ≤0.5% ≤0.5%

Modulus of Rupture 10545-4 (BS6431:Part12/EN100) ≥35N/mm 2 >40N/mm 2

Thermal Shock 10545-9 (BS6431:Part16/EN104) Pass Pass

Frost Resistance 10545-12 (BS6431:Part22/EN202) Resistant Resistant

Fire Rating Class 0 Non Combustable

UV Colour Resistance Unaffected by light

Weight/m 2 17kg

Architectural tiles are classed as BIa products

Test Standard Requirement Typical Test Value

Length/Width 10545-2 (BS6431:Part10/EN98) ±1.25% ±0.85%

Thickness 10545-2 (BS6431:Part10/EN98) ±10% ±10%

Straightness of side 10545-2 (BS6431:Part10/EN98) ±0.5% ±0.5%

Rectangularity 10545-2 (BS6431:Part10/EN98) ±1.5% ±1.5%

Surface fl atness 10545-2 (BS6431:Part10/EN98) ±0.5% ±0.5%

Water Absorption 10545-3 (BS6431:Part11/EN99) 0.5% to 3% 1.5% to 3%

Modulus of Rupture 10545-4 (BS6431:Part12/EN100) ≥18N/mm 2 >18N/mm 2

Thermal Shock 10545-9 (BS6431:Part16/EN104) Pass Pass

technical

Fire Rating Class 0 Non Combustable

Weight/m 2 22kg to 40kg

Fittings are classed as AI products

technical - physical properties

25

technical

swimming pool setting out

The internal fi nished dimensions of

swimming pools are set by FINA (Federation

Internationale de Natation) for 50m Olympic

and World Championship pools and by ASA

(Amateur Swimming Association) for 25m UK

competition pools.

Length

Short Course Championships are swum over

a course of 25m but pools up to 33.3m are

also accepted. Long Course Championships

are swum over a course of 50m.

Width

Multiples of 2m (Short Course) and 2.5m

(Long Course) are recommended with an

additional 1m to allow for two 0.5m areas

outside the outer lanes. Short Course Pools

have a recommended minimum width of 13m

and a maximum width of 17m whereas Long

Course Pools are 21m and 25m respectively.

Depth

A minimum water depth of 1m is

recommended for Short Course Pools but

1.8m is preferred. Long Course Pools have a

minimum water depth requirement of 1.8m.

End Walls

Both end walls should have an anti-slip area

extending a minimum of 0.8m below the water

line to enable safe push-off.

Number of Lanes

A minimum of 4 and a maximum of 10 (even

numbers are recommended) for Short Course

Pools and a minimum of 8 lanes for a Long

Course Pool.

26

technical - setting out

Diving Pools

The ideal size of a diving pool is 32m x 21m

x 5.5m deep but other recommended sizes

are 25m x 20m and 25m x 16.5m. In practice,

though, the size of a diving pool is governed

by the size(s) of other pools in the complex.

Depths vary according to the height of the

highest springboard or platform to be used.

For springboards the minimum water depths

are:

1m springboard – 3.5m water depth

3m springboard – 3.8m water depth

For platforms the minimum water depths are:

1m platform – 3.3m water depth



7.5m platform – 4.5m water depth


The base of the diving pool should be in a mid

blue colour for best diver perception of the

water surface.

Water Polo

Minimum length, width and depth vary

considerably dependant upon the level of

competition being played. Indicators should

be located on both long sides, these can

be incorporated in the tiling scheme for

‘Freeboard Pools’. For goal lines and halfway

line a white marker is required (black can be

used as an alternative). Indicators 2m from the

goal line are to utilise a red marker, 4m from

goal line a yellow marker and the 7m shooting

line a green marker.

The details given are as H & R Johnson

understand them and must be checked with

offi cial sources prior to construction of the

Swimming Pool shell. Lengths noted above

are from timing pad to timing pad.

Please refer to:

www.fi na.org/rules/english/facilities.php

www.britishswimming.org

slip resistance

When specifying products for wet change

fl oors, shower fl oors or the area surrounding

a swimming pool tank (pool surround or pool

deck) aesthetics and ease of cleaning should

never override safety.

Correctly specifi ed, installed, cleaned and

maintained ceramic tiles will give a lifetime of

slip resistance surface provision.

Watchpoints

Floor fi nishes to wet barefoot areas (showers,

wet change facilities, swimming pool steps

and pool surrounds):

Must be slip resistant when wet and have a

non abrasive surface

Should be easy to keep clean so that the slip

resistance of the fl oor material is maintained

at all times

Should have a texture that is as comfortable

as possible for bare feet

Should be laid to falls

Should incorporate fl ush drain covers

wherever possible

Should use fl oor fi nishes that achieve either

category “B” or category “C” slip resistance

when tested by DIN51097 Wet Ramp Test.

(Category “C” has a greater slip resistance

than category “B”). In certain locations (pool

access steps wider than 1m, walk through

pools, pool surround ramps) only category “C”

is suitable

Falls in Floors

All fl oors in wet barefoot areas should be

constructed with falls to suitable outlets

to enable draining of water. HSE guidance

recommends that fl oors be laid to falls so

that the majority of the water drains away to

properly constructed outlets and recommends

the use of profi led tiles to allow the water

to collect in the low areas whilst leaving the

high areas relatively dry or at least above the

surface of the water. The degree of slope of

the fl oor depends upon numerous factors

but, as an example, a minimum fall of 1:50 is

recommended in the “Specifi ers Handbook

for Inclusive Design – Internal Floor Finishes”

available from RIBA bookshops.

Suitable Products

(general wet barefoot areas)

Products with category “B” or “C” slip

resistance which are detailed in our Kerastar

(Keramosaic, Gripfoot, Discface, Suretread,

Diamond or Rocktop), Elements (Sediments

Textured or Sediments Gritted) and Ceramic

Mosaic (Touchstone) brochures.

Suitable Products (submerged areas)

General Pool Floors

There are no agreed guidelines on the

degree of slip resistance for surface fi nishes

permanently submerged in water (swimming

pool tanks). Guidance is left to the experience

and advice of the product manufacturer,

supplier or installer.

Once the water has some depth, there is

an increased damping effect on the legs

which increasingly renders the concept of

slip resistance less and less relevant. Also as

water increases depth to 1m or so buoyancy

also has an effect.

H & R Johnson Tiles Ltd product

recommendations on slip resistance for pool

tank fl oors are:

Water depths from 1mm to 450mm (Beach

type Pools and very shallow Childrens Pools)

– minimum category “B” when tested by

DIN51097 Wet Ramp Test.

Water depths from 450mm to 850mm

(Childrens Pools or shallow areas of Main

Pools) – the above specifi cation or our gritted

pool tank tiles

Water depths over 850mm – the above

specifi cation or our plain gloss fi nish pool tiles

Pool Access Steps, Walk Through Pools

and Pool Surround Ramps

Products with category “C” slip resistance

which are detailed in our Kerastar (Gripfoot,

Discface, Suretread, Diamond and Rocktop)

and Elements (Sediments Gritted) brochures.

technical

Hydrotherapy Pool Floors

Entry Steps or Ramps - products with

category “C” slip resistance which are detailed

in our Kerastar (Gripfoot, Discface, Suretread,

Diamond and Rocktop) and Elements

(Sediments Gritted) brochures.

Water depths from 1mm to 850mm

- minimum category “B” when tested by

DIN51097 Wet Ramp Test.

Water depths over 850mm as above

specifi cation or our gritted fi nish pool tiles.

Jacuzzi Floors and Seats

Products with category “C” slip resistance

which are detailed in our Kerastar (Gripfoot,

Discface, Suretread, Diamond and Rocktop)

and Elements (Sediments Gritted) brochures.

For full details on slip resistance values for our

fl ooring products please refer to the Kerastar,

Elements or Ceramic Mosaic brochures.

technical - slip resistance

27

technical

installation

Codes of Practice

All fi xing of fl oor, cladding and pool lining tiles

should be in accordance with the following

codes of practice guidelines:

BS5385 Part 2 – 2006 (Code of practice for

the design and installation of external ceramic

wall tiling and mosaics)

BS5385 Part 3 – 1989 (Code of practice for

the design and installation of ceramic fl oor tiles

and mosaics)

BS5385 Part 4 – 1992 (Code of practice

for ceramic tiling and mosaics in specifi c

conditions) – includes swimming pool tanks

BS8000 Section 11.1 – 1989 (Workmanship

on Building Sites, Part 11, Code of practice for

wall and fl oor tiling)

Substrates – pool surrounds

For installation guidance on swimming pool

surrounds please refer to the installation

guidance in the Kerastar brochure.

Substrates – pool linings

Before tiling is commenced ensure that the

pool has been water tested and proved to

be watertight in accordance with BS8007,

clause 9.2 and that the pool shell and general

conditions are suitable before rendering and

screeds are applied or before tiling.

It must also be ascertained that the correct

minimum curing periods have been observed

for all substrates:

Completion of pool shell to commencement

of rendering/screeding/tiling (for direct to

concrete installation) – 6 weeks

Completion of rendering/screeding to

commencement of tiling – 3 weeks

Completion of tiling to commencement of

grouting – 3 days

Completion of grouting and sealing of any

movement joints to fi lling of pool – 3 weeks

28

technical - installation

Accuracy of the substrate must be checked

to ensure that the guidance given in BS5385

has been achieved i.e. “local variations in level

for a nominally fl at fl oor or wall should be such

that, when checked with a 2m straightedge,

any gap under the straightedge between

points of contact does not exceed 3mm”.

Movement Joints in Pool Linings

The location, type and scope of all movement

joints must be ascertained prior to any fi xing

works. Structural joints in pool linings are

uncommon but where they exist they should

be followed through to the face of the tile

at full width. Intermediate movement joints

(minimum 6mm wide) should be situated at:

Changes of plane (including internal wall/fl oor

junctions, fl oor/fl oor junctions and wall/wall

junctions)

Where tiling abuts other materials

Maximum 6m continuous bays along the pool

fl oor and up the pool walls

Intermediate movement joints in pool linings

are the thickness of the tile and adhesive

bed only.

Movement joints should be fi lled with a

suitable backer, bond breaker and fi ller

(check with movement joint manufacturer for

suitability).

Fixing Tiles

All pool lining tiles should be fi xed with a solid

bed of adhesive to ensure maximum durability

and strength within the installation and long

term adhesion performance. This is achieved

with the use of a notched solid bed trowel.

Substrate Johnson’s Professional Adhesive

Concrete One Part Flexible

Sand/Cement Screed One Part Flexible

Brickwork/Blockwork One Part Flexible

Sand/Cement Render One Part Flexible

Existing Tiles One Part Flexible with slurry bonding coat

It is good practice to periodically remove a

recently fi xed tile to ensure that the correct

bedding is being achieved and maintained.

When fi xing all tiles care must be taken

to ensure that no lipping of tiles occurs.

All pool tank tiles within this brochure are

recommended to be fi xed with a 3mm wide

joint. All pool fi ttings in this brochure are

recommended to be fi xed with a 3-5mm

wide joint.

Adhesives

Adhesives should be in accordance with BS

EN 12004, Class C2*. Particular adhesive

choice will be governed by the substrate.

* Check with adhesive manufacturer for

additional C1 product suitability.

H & R Johnson recommend the use of

Johnson Professional adhesives and grouts,

see below:

Grouts

The choice of grout should refl ect the

expected service conditions and water type of

the installation.

For pools in soft water areas grouts should

be class CG2 i.e. Johnson Professional No

Mould Flexible Grout. For pools in hard water

areas or areas of a pool lining where there is

aggressive water (pools with wave machines,

rapids areas or spa pools) grouts should be

class RG1 i.e. Johnson Professional Easy

Clean Epoxy.

For specifi c adhesive or grout advice

please contact Johnson Professional helpline

0870 609 2851

cleaning and maintenance

Maintaining the appearance and

characteristics (especially slip resistance

values) of fl oor tiles is achieved with the

implementation of a suitable cleaning regime.

It must be stressed that the cleaning material

manufacturers instructions must be followed

at all times. Regular and correctly undertaken

cleaning should maintain a product as close

to its original state as possible. Incorrect or

infrequent cleaning will adversely affect the

properties of the tiles and increase potential

hazards.

Please see Kerastar brochure for specifi c

cleaning information for pool surround tiling.

Cleaning in pool linings can be split into

several categories:

Builders Clean

This should be undertaken prior to a fl oor

being brought into service. The builders clean

removes any residual fi lm left over from the

grouting operation and is a one off cleaning

process. It is imperative that this is carried out

as any grout residues left behind will act as a

key for dirt resulting in the installation being

diffi cult to clean.

Cementitious Grouts

The use of a mild acid decementing solution

followed by thorough rinsing will remove all but

the most stubborn of cement residues.

Epoxide Grouts

It is essential that ALL residue be removed

from the surface of the tiles during the grouting

process and before the resin cures. Failure

to achieve this will result in a very diffi cult and

expensive process using gel-type epoxide

removers.

Abrasive powders or cleaners should never

be used on ceramic tiles.

Correctly specifi ed and installed swimming

pool ceramics require little maintenance.

If there is need to empty a pool for major

refurbishment works the advice of pool

experts is strongly recommended prior to

emptying of the swimming pool.

Minor pool repairs can be carried out using

specialist diver repair teams. This removes the

need to empty and re-fi ll the pool, reducing

closure time, expensive water losses and reheating

costs.

To minimise the pool tank stresses during

emptying and fi lling the pool it is important

that:

The pool is fi lled or emptied at not more than

750mm depth per day.

The pool water is heated or cooled at no more

than 0.25ºC/hour.

technical

technical - cleaning

29

technical

dda - disability discrimination act

The Disability Discrimination Act 1995

(DDA) introduced new measures to prevent

discrimination against disabled people. The

Act was broadened in 2005 to form the

current Disability Discrimination Act 2005.

The DDA requires accessible environments

to be provided for disabled people, either in

their place of work or for access to goods,

services or facilities (public spaces). Those

commissioning new buildings or adaptations

to existing buildings must consider the

implications of the DDA and their ability to

provide buildings that do not discriminate

against disabled people (physical or mental

impairments).

When specifying ceramics there are 2 main

areas of relevance within the DDA.

30

Colour Refl ectance (Contrast)

The DDA gives guidance on good visual

contrast for the visually impaired between

various elements of a building by the use of

Light Refl ectance Values (LRV).

LRV is a general term for contrast and is

measured as the proportion of useful light

refl ected by a coloured object, fl oor, wall or

ceiling. LRV is measured on a scale of 0 to

100 where 0 is perfect black and 100 perfect

white (in reality 0 and 100 are unobtainable

colours). According to NCS Colour Centre in

practical terms black is approx 6 and white

approx 85. See page 44-47 for values.

The current guidelines from Building

Regulations Approved Document M on

contrast are that a minimum difference of 30

LRV points should be specifi ed for adjacent

surfaces to ensure that visually impaired

people are not discriminated against. In

the specifi c example of ceramic tiles this

difference should be between:

Floors to walls

Ceiling to walls

Handrails to walls

Sanitary fi ttings to walls

Visual contrast between fl oors and walls is

important in enabling visually impaired people

to assess and gauge the size and shape of a

room. It is important that the greatest visual

contrast occurs where the fl oor meets the wall

(skirting) as this gives the most accurate visual

indication of the extent of the room. Where

provided, skirtings should contrast visually

with the fl oor and be similar in colour and tone

to the wall surface.

Tactile Foot Braille (see Kerastar or

Elements literature for details)

Recommendations from the Department of

the Environment, Transport and the Regions

(DETR), the joint mobility unit of the RNIB

and the Centre for Accessible Environments

(CAE) led to the need for Tactiles to be used

as warning features for stairs, ramps and

platforms.

Available in 400x400x10mm format and in 2

colour options the Johnson Tactile System

offers compliance with not only the DDA

requirements but also the DETR, RNIB and

CAE recommendations. Specifi ed correctly

the Johnson Tactile System will ensure that

any new building Access Audits will be

compliant with the Access to Goods and

Services part of the DDA.

The Johnson Tactile System is manufactured

to the highest technical and performance

standards. The surface of the Tactile products

have the enhanced performance qualities of

a slip resistance durundum inclusion in the

surface of the tile.

The Corduroy profi le is designed to warn

visually impaired people of the presence

of specifi c hazards. Such a profi le is “Foot

Braille” and is a warning associated with

steps, ramps or the approach to on-street

light rapid transit platforms. The Corduroy

profi le is an internationally accepted Tactile

surface that conveys the message of hazard

and implies proceed with caution.

The Blister profi le is designed to warn visually

impaired people of the edge of all off-street

platforms. The profi le consists of a series of

offset, fl at topped dome studs. The parallel

rows of studs are designed to be installed at

right angles to the direction of traffi c and are

normally located behind the platform edge

coping.

This information is not exhaustive and the requirements at the time of specifi cation must be checked.

BS8300:2001 Amendment 1 indicates that there is anecdotal evidence to suggest that a 20 point LRV difference may be suffi cient –

especially where large adjacent areas are involved.

It must be noted that the guidance on LRV values given in this brochure is correct at the time of print. This is a subject that may be

reviewed by the regulatory body at any time so it is advisable to check the guidelines at the time of specifi cation of product.

The DDA details given in this brochure are to be used as an outline guide only and are the details as H & R Johnson understand them

at the time of print. If in doubt of any details contained herein the Act should be read in full.

technical - dda

general information

© Property of and used under

license from Scandinavian Colour

Institute AB, SCI Sweden.se,

Stockholm, 2001. See your local

NCS distributor for original NCS

standard samples

Quality Standards

Architectural pool

and cladding tiles are

manufactured to the

quality requirements

defi ned in Product

Norm EN BS 14411

(BS6431:Part 6,

EN 176)

Environmental

Management

H & R Johnson Tiles

Limited, Harewood

Street, Tunstall,

Stoke on Trent has

achieved ISO 14001

for Environmental

Management Systems

at its Stoke on Trent

factory.

Colour

The Architectural

range is notated by the

Natural Colour System

(NCS).

Reference guides to

other colour referencing

systems are also given

in this publication.

Fitness for Purpose

For specifi c suitability and fi tness for purpose

details contact the Technical Helpline or visit

the website: www.johnson-ceramics.com

Tile Sizes

All tile sizes in this brochure are nominal metric

modular and include a nominal 3mm joint.

Important

During the course of manufacture of all

ceramic tiles some variation in shade or

pattern can occur. Before fi xing tiles several

cartons should be opened and the contents

mixed to ensure that the size, shade, colour

and patterning are acceptable.

H&R Johnson cannot accept responsibility

for any tiles that have been fi xed.

Nothing in these statements does or will affect

the statutory rights of the consumer.

Samples Tel: 01782 524064

Fax: 01782 524138

Email: techsales@johnson-tiles.com

Technical Helpline Tel: 0845 210 3000

Fax: 01782 524138

Email: techadvice@johnson-tiles.com

International Technical Helpline:

+44 (0) 1782 524067

www.johnson-ceramics.com

H & R Johnson recommend the use of

adhesives and grouts from the Johnson

Professional range. For further information and

a detailed fi xing specifi cation please contact

0870 609 2851.

The colours shown on the tile products in this

brochure are as accurate as the limitations of

the printing process will allow. Please refer to

actual product samples before purchasing.

Every effort has been made to ensure

the accuracy of the information given in

this literature. In the interests of progress,

however, H & R Johnson reserve the right to

change specifi cations and availability without

prior notice.

technical

Acknowledgements

H & R Johnson would like to thank the

companies who have helped in the production

of this publication.

Design & Artwork: Idiom Creative Ltd.

Print: Wood Mitchell Printers

technical - general information

31

technical helpline:

0845 210 3000

H & R Johnson Tiles Limited, Harewood Street,

Tunstall, Stoke on Trent ST6 5JZ.

T: 01782 575575 F: 01782 577377

www.johnson-ceramics.com

10 Great Titchfi eld Street, London W1W 8BB

T: 020 7436 8629 F: 020 7436 9031

E: info@material-lab.co.uk www.material-lab.co.uk

Middle East Offi ce, H & R Johnson, PO Box 50518, Dubai, United Arab Emirates.

Tel ++97 14 398 6004 Fax ++97 14 398 7066

Johnson Tiles (Pty) Ltd, Olifantsfontein, South Africa.

Johnson Tile (Pty) Ltd, Bayswater, Victoria, Australia.

Philkeram Johnson s.a., Thessaloniki, Greece.

H & R Johnson (India) Ltd, Mumbai, India.

A Norcros company

® H & R Johnson, Johnson and Material Lab are registered trade marks.

All product names are the trade marks of H & R Johnson Tiles Ltd.

All Rights Reserved.

Printed in England 2007

SWIMMING POOL TILES - V Meyer A/S

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