Allura Flex安装指南说明书

Installation Guidance Note:

Allura Flex

General Advice

The appearance, performance and durability of the installed floorcovering will be determined to a large extent

by the quality of the prepared subfloor and the conditions in which they are laid. As with any resilient floor

covering irregularities in the subfloor will be apparent in the finished flooring.

The installation of Allura Flex should be carried out in accordance with BS8203:2017 installation of resilient floor

coverings - Code of practice. Areas to receive flooring should be free from other trades, fully enclosed and

weather tight.

Subfloors should be clean and free of all contaminants, smooth, sound, even and permanently dry.

Note: contaminants can affect the adhesion of the new floor covering and/or cause migrating stains. It is

therefore important that contaminants such as cleaning chemical residues, old adhesive residues and remains of

old floor coverings such as residues of carpet tile backings are removed or, where permissible, isolated with an

appropriate subfloor treatment.

Areas to receive flooring shall be adequately lit to allow for proper inspection of the substrate, installation and

for final inspection.

Always conduct moisture tests on all substrates. All ground-based level floors should have an effective moisture

barrier.

It is essential that the laying area is at a steady temperature of 18 to 27

o

C for 48 hours prior to, during, and for

24 hours after installation. The material and adhesive should be conditioned in the same environment for at

least 24 hours prior to the installation. Where the floorcoverings have been stored or transported immediately

prior to delivery in temperatures below 10

o

C the acclimatisation period should be extended to 48 hours.

Prior to installation tiles should be checked to ensure that the correct colour, batch number and quantity have

been received and that the material is in good condition. No claim will be accepted for incorrect colour, pattern

or obvious damage if the material has been fitted.

Use material from the same batch/dye lot. The use of different production batches will always result in visible

shade differences. The batch number is clearly marked on the material packaging and must be checked before

commencement of installation.

Store Allura Flex tiles and planks in cartons stacked, maximum 5 cartons, ensuring that they fully supported and

are laying flat.

Do not remove more tiles from the box than can be installed within 1 hour.

Allura Flex is occupier ready on completion of the installation. However, if the newly installed floor is going to be

subjected to site traffic, particularly heavy, high point load wheeled traffic, the floor should be protected during

this phase (see “on completion” at the end of this guide).

Issue Date: January 2020

Note: Installation over the following substrates falls outside the scope of BS8203:2017 and the

recommendations below should be followed:

Raised Access Floors

These should be smooth, level and clean of all contaminants. Degreasing may be necessary on steel faced panels

(chemical cleaning agents should be thoroughly rinsed/neutralized after cleaning). All old adhesive/floor

covering residues must be removed.

Raised access flooring panels have a tendency to settle shortly after installation and this should be taken into

account when assessing the appearance of the Allura Flex tiles or planks fitted onto raised access flooring

systems. Ridges between uneven raised access floor panels and/or gaps between adjacent panels will telegraph

through to the finished tile installation.

Panels should be checked before commencing installation to ensure that they are close fitting and level. Uneven

or loose floor panels should be levelled or re-fixed before installing Allura Flex tiles or planks.

Notes:

• Incidental low-level light will exaggerate any unevenness in the subfloor.

• If a suitably flat and level raised access panel substrate cannot be achieved, the raised access floor

should be overlaid with plywood or levelled using a suitable self-levelling smoothing underlayment

compound.

• See additional advice below for the installation of Hungarian point planks

Old resilient flooring

It is recommended that existing floor coverings are removed, and that the subfloor is prepared in accordance

with BS8203:2017.

If existing floor coverings cannot be removed contact Forbo Technical Services for further advice.

Underfloor heating

As with all Forbo floor coverings, Allura Flex can be used in conjunction with under-floor heating systems.

It is imperative that the underfloor heating systems have been previously commissioned and found to be

functioning correctly prior to the floor finish being installed. Ensure that the underfloor heating system is

switched off 48 hours prior to the floor covering installation commencing and remains off for at least 48 hours

after the installation is complete.

During the period of decommissioning of the underfloor heating system, an alternative heating source should be

provided, if required, to ensure that the area of installation is kept at a constant temperature of 18

o

C – 27

o

C.

Gradually increase the temperature over a number of days by only a few degrees per day until the desired room

temperature is reached.

The temperature should never exceed the industry agreed maximum of 27

o

C at the underside of the floor

covering (the adhesive line). Failure to follow these guidelines can result in the floor covering de-bonding, joints

opening, and on some occasions discolouring, all of which can occur within a long or short period of time.

Further information on the requirements for underfloor heated subfloors can be found in BS8203:2017.

Issue Date: January 2020

2

Adhesive Recommendations and application

The following information is provided for general guidance. In all cases the adhesive manufacturers’ full usage

and application instructions should be consulted and followed before commencing the installation.

Allura Flex tiles should be installed using a high grab, plasticizer migration resistant tackifier adhesive. Forbo

recommends Forbo Eurocol 542 Eurofix Tack Plus. If alternative products are to be used consult with the

supplier for more information, guidance and warranty.

Use a short pile roller to apply the tackifier. It is essential that tackifiers are allowed to dry to a tacky finish

before laying the floor covering. Failure to do so could result in a permanent non-release bond.

Note:

1. The adhesive must be spread evenly over the entire floor area including up to perimeter edges

2. Porous substrates may require priming with a diluted application of the adhesive.

3. Always clean away excess adhesive with a damp cloth before it is allowed to dry.

In most applications Forbo Eurocol 542 tackifier adhesive will be sufficient in heavy commercial usage areas,

however, where tiles or planks are liable to be subject to heavy static or dynamic loads, they should be fully

adhered using Forbo Eurocol 640 Eurostar special (EC1 Low emission adhesive).

Note: Forbo Flooring recommends to fully adhere Allura Flex in areas liable to be subjected to abnormal

temperature variation in use, for example, retail premises with glazed window fronts, open spaces in offices

with large glazed areas, conservatories etc. The use of a high temperature adhesive that is compatible with the

floor covering and the subfloor is recommended.

The installation, on completion, should be rolled with an appropriate weighted roller (recommended 68kg) to

ensure good contact with the adhesive. Areas that cannot be rolled with the large abutments such as

architraves or skirting boards should be rolled with a hand roller or pressed into the adhesive with a rubbing

hammer.

Installation

For the installation direction of Allura Flex tile please note the following:

• Stone, concrete and sand tiles may be laid either in bond (monolithic) or brick pattern

• Textile designs should be installed tessellated.

Tessellated Monolithic Brick

3

Issue Date: January 2020

Traditional wood designs do not require shuffling prior to installation, but dry laying will identify best use of

design.

Like the natural material, some designs will vary in tone and colour. This is intentional and gives the floor a more

authentic appearance.

Note: see additional installation advice below for Hungarian point” planks

Setting out

Forbo tile products are installed using conventional tile installation

techniques.

The correct starting point for setting out a tiled floor is traditionally the

centre of the area - although this may not be the final starting point when

tile laying begins. Some adjustment of the starting point may be required,

for example, to avoid small perimeter cuts, where the tiles are to be laid

with a border, or with designs such as Hungarian Point.

In corridors and small spaces, it may be simpler to work lengthwise from

one end, using the centre line as a guide.

The centre line is drawn as follows: a chalk line is snapped from centre of wall A-B (=E) to the centre of wall C-D

(=F). The centre of line E-F is found (M). Draw a perpendicular line through M using the 3:4:5 method to

establish G-H (Figure A).

Starting at centre point M, measure out lengthwise and width wise to the walls. Wherever possible, cuts of less

than 60mm or so should be avoided as these are more likely to come loose at some stage in the life of the

installation. Adjust the position of lines E-F and G-H if necessary.

Laying tiles or planks

Begin laying tiles at the starting point, ensuring that the tile is laid exactly along the layout lines. If the first few

tiles are not installed accurately, the entire installation will be affected. Lightly roll each row of planks with a

hand roller to ensure an initial firm adhesive bond.

Note: In a large area, two or more fitters may be placing tiles at the same time. As finger pressure in butting the

tiles or planks together may be slightly different, we suggest starting from a common point and work away from

it to avoid tiles or planks going out of bond.

Remove fresh adhesive residue immediately with a clean white damp cloth. Dried adhesive residue can be

removed with a clean white cloth and soapy water.

Fully adhered installation

In situations where the tiles or planks are being fully adhered the time it takes to mark and cut the border tiles

must be taken into consideration when planning the installation. Without adequate planning, it is likely that the

working time of the adhesive in the area of the border tiles will be exceeded before the tiles are installed, which

will result in an inadequate bond of the border tiles. The successful installation of border tiles is best

accomplished by following one of two strategies:

a. When laying out tiles, determine the edge of a field tile a comfortable distance from each wall and then

snap chalk lines around the perimeter of the room. When spreading adhesive, use these lines as a guide

to stop spreading adhesive and install the field tiles up to the adhesive spread lines. Once the field tiles

have been installed, the border tiles can be “dry” fitted (before spreading the adhesive). After the

Issue Date: January 2020

Figure A

4

border tiles have been cut, adhesive can be applied in the area of the border tiles and the tiles can be

placed into the adhesive.

b. Plan the sequence of spreading adhesive so that the border tiles can be cut and placed into the adhesive

before the adhesive working time has been exceeded.

Hungarian Point

This design is made up of left and right planks which are installed together in rows (option 1) or either side of a

standard plank (option 2). Each box has an equal number of A and B planks packed face-to-face and back-to-

back in the box.

Hungarian Point Laying Option 1 Hungarian Point Laying Option 2

Note: As with any geometric design, irregularities or undulations in the subfloor can result in the bond of tiles or

planks drifting during installation. This is particularly important with the installation of Hungarian point planks if

the points of the planks are to meet consistently and particular attention should be given to the preparation of

the subfloor to ensure that the highest standard of subfloor regularity/level is within SR1 surface

regularity standard (no greater than 3mm variance within 2 metres).

On completion of the installation

First impressions may have more impact on the client than hours of skilled fitting.

The completed installation should be cleared of scrap material and debris, the floor swept or vacuumed, and

any traces of adhesive residues removed from the floor and skirtings.

If the floor covering is to be protected from other trades or site traffic prior to project completion, a protection

product should be chosen that is appropriate for the type and level of traffic likely to be experienced and the

potential for impact, scratching or indentation damage.

In many cases it is customary for the initial floor preparation to be left, or subcontracted, to a professional

cleaning and maintenance contractor who will have the staff and equipment to do the job thoroughly.

If the optimum performance of any new floor covering is to be achieved, it is important that the correct cleaning

and maintenance procedures are used from day one. Cleaning and maintenance guides for all Forbo Flooring

products are available for download at: /alluraflex

Issue Date: January 2020

5

Cleaning and maintenance guides should be passed onto the main contractor, client or end user as appropriate

on completion of the installation, and before any hand over clean is started.

If in any doubt contact us:

Forbo Flooring UK Ltd

Tel: 0800 0282 162

Fax: 01772 646912

Samples************

**************************

Additional Reference documents and information:

Forbo Floor Coverings Installation Guide:

BS8203:2017 installation of resilient floor coverings - Code of practice

The CFA Guide to Contract Flooring:

/

(Tel: 01159 411126)

6

Issue Date: January 2020