PCSBOARD VipaBoard Tile Backer Boards Instruction Manual

PCSBOARD VipaBoard Tile Backer Boards

Product Information

Specifications

• Product Name: VipaBoard
• Compatibility: Not compatible with solvent-based adhesives
• Surface Type: Suitable for various floor finishes and wall applications
• Recommended Screed Thickness: Minimum 10mm flexible cement-based leveling screed

Product Usage Instructions

VipaBoard Surface Preparation

Before installation, ensure the following surface preparation steps.

1. For soft floor finishes like Vinyl & Carpet, cover VipaBoard with a 10mm thick flexible cement-based leveling screed.
2. Wood planking and Wood Laminate can be directly fitted over VipaBoard.
3. Solid Wood fixed with adhesive requires a 10mm thick cement-based flexible leveling screed.
4. Porcelain, natural stone, and ceramic tiles can be applied directly or with a 10mm thick leveling screed for heavy loads.
5. Compatible with highly flexible synthetic render systems; not compatible with traditional sand/cement render types.

Fixing to Timber Floors

• Follow the diagram and instructions provided in the manual for fixing VipaBoard to timber floors using washers, screws, adhesive dots, and joint bridging techniques.

Fixing to Solid Floors

• For fixing solid floors, ensure proper surface preparation and use the recommended adhesive and joint bridging methods as per the manual.

Fixing to Internal Stud Framework

• When fixing to an internal stud framework, use the specified fixings and sealing materials as indicated in the manual.

Fixing to External Stud Framework

• For fixing an external stud framework, follow the recommended guidelines for secure installation.

FAQ

Q: Can VipaBoard be used with solvent-based adhesives?

A: No, VipaBoard is not compatible with solvent-based adhesives. Please use the recommended materials for installation.

Q: What type of floor finishes can be used with VipaBoard?

A: VipaBoard is suitable for a variety of floor finishes including Vinyl, Carpet, Wood Planking, Laminate Planking, Solid Wood Planking, and Tiles.

Q: How should I prepare the surface before applying floor finishes?

A: Depending on the type of floor finish, ensure to either directly apply the finish or cover VipaBoard with a 10mm thick flexible cement-based leveling screed for added support.

VipaBoard Surface Preparation

NOTE: VipaBoard is not compatible with solvent-based adhesives.

• It is very important to read the surface preparation notes set out in this document before the installation of the VipaBoard.
• The advisory points below provide a quick overview of the preparation of the VipaBoard surface before applying floor finishes.

1. For Soft floor finishes e.g. Vinyl & Carpet, it is essential to cover the VipaBoard surface with a minimum 10mm thick, flexible, cement-based leveling screed.

2. Wood planking and Wood Laminate can be fitted directly over the VipaBoard surface, however, for commercial projects subject to heavy foot traffic, we recommend covering the surface of the VipaBoard with a minimum 10mm thick, flexible, cement-based leveling screed.
   For Solid Wood fixed with adhesive, the surface of the VipaBoard must be covered with a minimum 10mm thick cement-based, flexible, leveling screed.

3. Porcelain, natural stone, and ceramic tiles can be applied directly onto the surface of the VipaBoard, however, for commercial projects, subject to heavy loads, we recommend covering the surface of the VipaBoard with a minimum 10mm thick, flexible, cementbased leveling screed, before fixing tiles.

4. VipaBoard is compatible for use with highly flexible synthetic render systems. Traditional sand/cement render types are not compatible.

5. Refer to additional surface preparation notes set out in this document for more detailed information.

6. Contact PCS Technical for advice on structures, applications, and surface finishes not covered in this document.

Building Regulations

• All information is given as guidance and if adhered to will perform as intended. We fully guarantee the quality of our products, however, as we do not know site conditions or the capability of the installer, we cannot accept liability for damage that may arise due to a result of incorrect installation. The information and advice provided by PCS does not override nor supersede building regulations.
• It is the responsibility of the user to seek professional guidance to ensure PCS products are compatible with their intended use and that the products comply with building regulations.

Fixing to Timber Floor Boards

Structural Design Consideration:

• VipaBoard is NOT designed to be directly fixed onto timber joists, therefore all joists must be boarded with a suitable flooring material, such as Plywood/Chipboard Planks/T&G boarding, etc. before VipaBoard is fitted.
• The type of boarding used must comply with current building regulations and approved standards. The floor boarding must be of the correct thickness to resist warping and deflection between joist centers, meet the requirements of BS EN 5385 1,2,3,4,5, code of practice for design and installation of internal floor tiling, and must be able to support the weight of finishes applied and any live loading imposed on the floor in service.
• Note: 4mm thick VipaBoard is not suitable for fixing onto timber floor boarding.
• VipaBoard 6mm thick and above is suitable for fixing onto timber floor boarding.
• Fixing onto timber floor boarding using fixing washers and screws only (no adhesive)
• Note: 4mm thick VipaBoard is not suitable for fixing onto timber floor boarding.
• VipaBoard 6mm thick and above is suitable for fixing onto timber floor boarding.
• VipaBoard can be secured directly to timber floor boarding using 35mm diameter fixing washers and suitable screws with a countersunk head, set at a maximum of 300mm centers (e.g. 15 fixings per 1200mm x 600mm VipaBoard).
• It is acceptable to fix directly into the floor boarding, however, where possible fix and anchor into the floor joists. It is acceptable to place fixing washers directly along the VipaBoard edge so that the fixing washers can secure adjacent VipaBoard reducing the amount of fixings required. Ensure that the VipaBoard is in full contact with the floor surface and that there is no movement, or hollow spots, between the VipaBoard and the subfloor.
• Additional fixings can be used to secure the VipaBoard firmly to the floor boarding. If the subfloor is uneven, we would recommend applying adhesive and fixing washers to secure the VipaBoard to the subfloor (referenced in note 2b.)
• NOTE: Securing VipaBoard to floor boarding using washers and screws (no adhesive) facilitates easy removal of the VipaBoard from the floor boarding (if required in future years) for refurbishment and modernization of the flooring.
• NOTE: WHEN USING SCREWS TO FIX THE VIPABOARD MAKE SURE TO AVOID ELECTRICAL CABLES OR PIPEWORK THAT MAY BE CONCEALED

Fixing Coverage Guide

• Fixings 21 per m2
  • (fixing quantities may be reduced if washers are used to span adjacent VipaBoards)
• Indicative Fixing Details using washers & screws
  • (1200mm x 600mm VipaBoard)
• Fixing onto timber floor boarding using cement-based tile adhesive and 35mm diameter fixing washers
• Refer to the adhesive manufacturer’s instructions for the preparation and priming of the structural boarding, before starting your project
• Note: 4mm thick VipaBoard is not suitable for fixing onto timber floor boarding.
• VipaBoard 6mm thick and above is suitable for fixing onto timber floor boarding.
• VipaBoard can be fixed using a good quality cement-based, flexible, fast-setting tile adhesive that meets classification C2 S1 or above. Check with the adhesive manufacturer for advice on priming the floor boarding. The adhesive should be applied directly onto the floor boarding using an 8-12mm notched tiling trowel. Ensure full adhesive contact with the VipaBoard surface; solvent-based or ready-mixed adhesives must NOT be used. Fix the VipaBoard in a brick bond style, abutting the VipaBoard surface with adjacent VipaBoard as you proceed. Apply pressure to the VipaBoard surface, making sure there is good compaction of the VipaBoard into the adhesive, and that no hollow spots remain under the VipaBoard.
• In addition to the adhesive layer, VipaBoard must also be secured to the floor boarding with 35mm diameter fixing washers and a suitable screw with a countersunk head. Fix the washers to the VipaBoard once the adhesive has set.
• It is acceptable to fix directly into the floor boarding, however, where possible fix and anchor into the floor joists. The spacing for the fixing washers should be set at 400mm – 600mm centers (e.g. 8 fixing washers per 1200mm x 600mm VipaBoard). Position the fixing washers along the VipaBoard edge and also down the center line of each VipaBoard. The fixing washers placed down the center of the VipaBoard should be staggered from the VipaBoard edge fixings, creating a crisscross pattern on the VipaBoard surface. It is acceptable to place fixing washers directly along the VipaBoard edge so that the fixing washers can secure adjacent VipaBoards reducing the amount of fixings required.
• Additional fixings can be used to secure the VipaBoard firmly to the floor boarding.
• DO NOT ALLOW THE ADHESIVE TO FORM A SKIN AS THIS WILL PREVENT ADHESION.
• NOTE: WHEN USING SCREWS TO FIX THE VIPABOARD MAKE SURE TO AVOID ELECTRICAL CABLES OR PIPEWORK THAT MAY BE CONCEALED.

Fixing Coverage Guide

• Adhesive Fixings 4.5kg per m2 12 per m2
  • fixing quantities may be reduced if washers are used to span adjacent VipaBoards
• Indicative Fixing Detail using adhesive, washers & screws
  • (1200mm x 600mm VipaBoard)

Fixing to Solid Floors

• Fixing onto concrete/cement screed/asphalt and other similar solid substrates using cement-based tile adhesive.
• For Calcium Sulphate / Anhydrite / Gypsum screeds, advice must be sought from the adhesive manufacturer regarding the preparation of the screed before applying fixing adhesive.
• Refer to the adhesive manufacturer’s instructions for the preparation and priming of the substrate, before starting your project
• Note: VipaBoard of all thicknesses is suitable for fixing onto solid floors.
• Before fixing the VipaBoard, all traces of grease and loose material must be removed from the floor substrate. Newly poured concrete and screed should be fully cured, and have a moisture reading no greater than 75% Relative Humidity (RH) as per BS5383 before fixing the VipaBoard. We recommend sealing any porous floor substrate with a suitable water-resistant primer before the adhesive is applied. Fix VipaBoard using a good quality cement-based, flexible, fast-setting tile adhesive that meets classification C2 S1 or above.
• When fixing VipaBoard to substrates such as Calcium Sulphate, Anhydrite, and Gypsum screeds, advice must be sought from the adhesive manufacturer regarding the preparation of the screed before applying the adhesive. The adhesive should be applied directly onto the floor using an 8-12mm notched tiling trowel, ensuring full coverage to the VipaBoard surface; solvent-based or ready-mixed adhesives must NOT be used. Fix VipaBoard into the adhesive in a brick bond style, abutting the VipaBoard surface with adjacent VipaBoards as you proceed. Apply pressure to the VipaBoard surface making sure there is good compaction of the VipaBoard into the adhesive, and that no hollow spots remain under the VipaBoard.
• DO NOT ALLOW THE ADHESIVE TO FORM A SKIN AS THIS WILL PREVENT ADHESION.
• Fixing Coverage Guide
  • Adhesive 4.5kg per m2
• Indicative Fixing Details using adhesive
  • 1200mm x 600mm VipaBoard

Fixing to Internal Stud Framework

Structural design consideration:

• The stud framework and any cladding/lining used must be designed and constructed under relevant building regulations and must be able to support the weight of the finishes applied, and any live loading imposed on the framework.
• VipaBoard over plasterboard lined stud framework is fixed using the same detail as fixing VipaBoard over unlined studs.
• VipaBoard 4mm thick is not suitable for use on walls.
• VipaBoard 6mm thick is not suitable for use over unlined or plasterboard-lined stud framework.
• VipaBoard 6mm thick is suitable for use over plywood lined stud framework.
• VipaBoard 10mm thick and above is suitable for use over unlined and lined stud framework.
• Fixing directly onto the internal stud framework and stud framework lined with plasterboard
• Fix using 35mm diameter washers and screws
• Note: VipaBoard must be 10mm thick or greater for use over unlined and plasterboard-lined stud framework.
• For 10mm thick VipaBoard, vertical studs should be set at a maximum of 300mm centers.
• For 12.5mm thick VipaBoard, vertical studs should be set at a maximum of 400mm centers.
• For VipaBoard 20mm thick and above, stud centers can be set at a maximum of 600mm centers.
• Timber noggins MUST be installed between vertical studs and positioned to support the edges of the VipaBoard.
• Fixing washers and screws should be set at a maximum of 300mm centers on vertical stud framework and also fixed into the intermediate noggins on 600mm stud centers (e.g. 15 fixing per 1200mm x 600mm VipaBoard on 300mm studs, 12 fixing per 1200mm x 600mm VipaBoard on 400mm and 600mm studs)
• Additional fixings can be used if required.
• Fixing Coverage Guide
  • Fixings: 21 fixings per m2 based on 300mm stud centers for a 10mm thick VipaBoard.
  • fixing quantities may be reduced if washers are used to span adjacent VipaBoards
• Fixings: 17 fixings per m2 based on 400mm stud centers for a 12.5 mm thick VipaBoard.
  • fixing quantities may be reduced if washers are used to span adjacent VipaBoards
• Fixings: 17 fixings per m2 based on 600mm stud centers for a 20mm+ thick VipaBoard.
  • fixing quantities may be reduced if washers are used to span adjacent VipaBoards

Stud Framework unlined

Stud Framework plasterboard lined

• Fixing to Internal stud framework pre-lined with Plywood
• Fix using 35mm diameter washers and screws
• Note: 4mm thick VipaBoard is not suitable for fixing onto walls
• VipaBoard 6mm thick and above can be fixed over plywood lined stud framework
• Studs can be set up to 600mm centers, plywood must be a minimum of 12mm thick.
• Fix 6mm thick VipaBoard with washers and screws set at 200mm centers (i.e 28 fixings per 1200mm x 600mm VipaBoard)
• Fix VipaBoard 10mm thick and above with washers and screws set at 300mm centers (i.e 15 fixings per 1200mm x 600mm VipaBoard)
• It is acceptable to fix directly into the plywood lining, however, where possible fixings should be anchored into the stud framing.

Fixing Coverage Guide

• Fixings for 6mm thick VipaBoard: 38 fixings per m2
  • fixing quantities may be reduced if washers are used to span adjacent VipaBoards
• Fixings for 10 mm thick VipaBoard: 21 fixings per m2
  • fixing quantities may be reduced if washers are used to span adjacent VipaBoards
• 6mm VipaBoard fixed horizontally over plywood lined studs set at 400mm centers.
• 1200mm x 600mm VipaBoard
• 6mm VipaBoard fixed vertically over plywood lined studs set at 400mm centers.
• 1200mm x 600mm VipaBoard.
• 6mm VipaBoard fixed vertically over plywood lined studs set at 600mm centers.
• 1200mm x 600mm VipaBoard
• 10mm/12.5mm VipaBoard fixed vertically over plywood lined studs set at 600mm centers.
• 1200mm x 600mm VipaBoard

Fixing to External Stud Framework

Structural design consideration:

• VipaBoard less than 12.5mm thick is not suitable for use on an external stud framework.
• The external stud framework specification and any over-cladding used must be designed and constructed under relevant building regulations.
• Depending on the design requirements, If the stud framework is pre-clad, it may be necessary to fix 80mm wide fixing battens over the cladding, before fixing VipaBoard to form a ventilation cavity between the VipaBoard and the cladding.
• A moisture vapor membrane may also be required and must be considered as part of the design process before VipaBoard is applied.

External Stud Framework

• Fix using 35mm diameter stainless-steel washers and screws
• Note: VipaBoard must be 12.5mm thick or greater for use on external stud framework VipaBoard should be fixed using PCS 35mm diameter stainless-steel fixing washers and stainless-steel screws with a countersunk head. Anchor fixings into the stud/batten framework.
• For Stud framework with vertical studs set at 300mm centers: Use a minimum 12.5mm thick VipaBoard. Fix using 35mm diameter stainless steel washers and screws set vertically at 300mm centers. E.g. 15 Fixings per 1200mm x 600mm VipaBoard.
• For Stud framework with vertical studs set at 400mm centers: Use a minimum 20mm thick VipaBoard. Fix using 35mm diameter stainless steel washers and screws set vertically at 300mm centers. E.g. 12 Fixings per 1200mm x 600mm VipaBoard.
• For Stud framework with vertical studs set at 600mm centers: Use a minimum 30mm thick VipaBoard. Fix using 35mm diameter stainless steel washers and screws set vertically at 300mm centers. E.g. 10 Fixings per 1200mm x 600mm VipaBoard.

Fixing Coverage Guide

• For 300mm stud framework centers with 12.5mm thick VipaBoard: 21 fixings per m2
• For 400mm stud framework centers with 20mm thick VipaBoard: 17 fixings per m2
• For 600mm stud framework centers with 30mm thick VipaBoard : 14 fixings per m2

Stud framework without cladding

• Indicative Fixing Detail using washers & screws with 300mm Stud Centres 1200mm x 600mm x 12.5mm VipaBoard

Stud framework with cladding & ventilation cavity

• Indicative Fixing Detail using washers & screws with 400mm Stud Centres 1200mm x 600mm x 20mm VipaBoard
• Indicative Fixing Detail using washers & screws with 600mm Stud Centres 1200mm x 600mm x 30mm VipaBoard
• External Stud Framework Clad in Cement Panelling (fix with a solid adhesive bed and secure with 35mm diameter stainless-steel washers and screws)
• Note: VipaBoard must be 12.5mm thick or greater.
• VipaBoard should be fixed onto external cement paneling using a cement-based, flexible, tile adhesive that meets classification C2 S1 or above.
• The cement panels must be sealed with a suitable primer before cement adhesive is applied. In addition to the adhesive layer, 35mm diameter stainless-steel fixing washers and stainless-steel screws with a countersunk head must be used.
• The washers and screws must be fixed through the VipaBoard and cement cladding to anchor directly into the stud framework.
• The fixings should be positioned at a maximum of 300mm centers along the vertical studs of the framework.
• The adhesive should be applied directly to the paneling using an 8-12mm notched tiling trowel, ensuring full coverage of the VipaBoard surface; solvent-based or ready-mixed adhesives must NOT be used.
• In certain circumstances, for example, uneven walls, it may be necessary to back butter the VipaBoard in addition to the adhesive applied to the substrate. Place the VipaBoard onto the wall surface, and bed firmly into place.
• Apply pressure to the VipaBoard surface making sure there is good compaction of the VipaBoard into the adhesive, and that no hollow spots remain under the VipaBoard. The adhesive layer will provide additional rigidity to the VipaBoard cladding.
• Level the VipaBoards using a straight edge to ensure a flat uniform surface is achieved. Stagger VipaBoard joints by fixing the VipaBoard in a brick bond style.

Fixing Coverage Guide

• Fixings 21 fixings + 4.5kg adhesive per m2 based on 300mm stud centres
  • 17 fixings + 4.5kg adhesive per m2 based on 400mm stud centres
  • 14 fixings + 4.5kg adhesive per m2 based on 600mm stud centres
• Indicative Fixing Detail
  • using adhesive, washers & screws based on 300mm stud centres 1200mm x 600mm x 12.5mm VipaBoard
• Indicative Fixing Detail
  • using adhesive, washers & screws based on 400mm stud centers
  • 1200mm x 600mm x 12.5mm VipaBoard
• Indicative Fixing Detail
  • using adhesive, washers & screws based on 600mm stud centres 1200mm x 600mm x 20mm VipaBoard

Fixing to Masonry Walls

Structural design consideration:

• To fix VipaBoard onto walls above 2.4mtrs in height, mechanical fixing dowels and adhesive must be used.
• For walls under 2.4 meters, VipaBoard can be fixed using adhesive without the need for fixing dowels.
• For masonry walls that have a plaster or cement finish, adhesive and fixing dowels must be used. Fixing dowels must be of sufficient length to securely anchor into the masonry wall by a minimum of 50mm.
• Ensure that the wall surface is stable and free of dust and grease and that all loose and deleterious materials are removed to ensure good adhesion between the adhesive and the wall substrate.
• Note: 4mm thick VipaBoard is not suitable for fixing onto walls.
• VipaBoard 6mm thick and above is suitable for solid bed fixing onto masonry walls.

Fixing onto Internal Masonry walls

• Fix using a solid adhesive bed. Fixing dowels will also be required if the wall has a cement or plaster finish
• Note: 4mm thick VipaBoard is not suitable for fixing onto walls.
• VipaBoard 6mm thick and above is suitable for solid bed fixing onto masonry walls.
• VipaBoard can be fixed onto clean internal masonry walls using a cement-based, flexible, fast-setting tile adhesive that meets classification C2 S1 or above.
• The wall surface must be sealed with a suitable primer, before applying the cement adhesive.
• The adhesive should be applied directly onto the wall using an 8-12mm notched tiling trowel, ensuring full coverage of the VipaBoard surface; solvent-based or ready-mixed adhesives must NOT be used.
• In certain circumstances, for example, uneven walls, it may be necessary to back butter the VipaBoard in addition to the adhesive applied to the substrate.
• Place the VipaBoard onto the wall surface, and bed firmly into place. Apply pressure to the VipaBoard surface, making sure there is good compaction of the VipaBoard into the adhesive, and that no hollow spots remain under the VipaBoard.
• Level the VipaBoards using a straight edge to ensure a flat uniform surface is achieved. Stagger VipaBoard joints by fixing the VipaBoard in a brick bond style.
• DO NOT ALLOW THE ADHESIVE TO FORM A SKIN AS THIS WILL PREVENT ADHESION.
• Fixing onto Internal Masonry Walls with Gypsum/ Cement Finishes
• Note: 4mm thick VipaBoard is not suitable for fixing onto walls.
• VipaBoard 6mm thick and above is suitable for solid bed fixing onto masonry walls.
• For internal masonry walls that have a gypsum or cement finish and are in good condition, it may be possible to fix the VipaBoard onto the wall without removing the existing finishes; however professional advice on the stability of the wall structure and wall finishes should be sought.
• All masonry, cement, and gypsum wall surfaces must be sealed with a suitable primer, before applying the cement adhesive.
• Fix VipaBoard over the cement/plaster finishes using a flexible, fast-setting tile adhesive that meets classification C2 S1 or above. The adhesive should be applied to the wall surface using an 8-12mm notched tiling trowel, ensuring full coverage of the VipaBoard surface; solvent-based or ready-mixed adhesives must NOT be used. In certain circumstances, for example, uneven walls, it may be necessary to back butter the VipaBoard in addition to the adhesive applied to the substrate.
• In addition, once the adhesive has been set, VipaBoards MUST be fixed with PCS fixing dowels set at 400mm – 600mm centers (e.g. 8 dowels per 1200mm x 600mm VipaBoard.
• Position the fixing dowels along the VipaBoard edge and also along the center line of each VipaBoard.
• The fixings placed along the center of the VipaBoard should be staggered from the VipaBoard edge fixings, creating a crisscross pattern on the VipaBoard surface.
• Additional fixings can be used to secure the VipaBoard firmly to the wall substrate.
• DO NOT ALLOW THE ADHESIVE TO FORM A SKIN AS THIS WILL PREVENT ADHESION.
• Fixing Coverage Guide
  • Adhesive: 4.5kg per m2
• Fixings Dowels: 12 per m2
  • fixing quantities may be reduced if Dowels are used to span adjacent VipaBoards

Fixing onto External Masonry walls

• Fix using a solid adhesive bed and secure with fixing dowels)
• To fix VipaBoard onto walls above 2.4mtrs in height, mechanical fixing dowels and adhesive must be used.
• For walls under 2.4 meters, VipaBoard can be fixed using adhesive without the need for fixing dowels.
• Fixing dowels must be of sufficient length to securely anchor into the masonry wall by a minimum of 50mm.
• Ensure that the wall surface is stable and free of dust and grease and that all loose and deleterious materials are removed to ensure good adhesion between the adhesive and the wall substrate.
• Note: 4mm thick VipaBoard is not suitable for fixing onto walls.
• VipaBoard 6mm thick and above is suitable for solid bed fixing onto masonry walls.
• VipaBoard can be fixed onto clean external masonry walls using a solid bed of cement-based, flexible, tile adhesive that meets classification C2 S1 or above. When Fixing VipaBoard onto external masonry walls that extend above 2.4mtrs height, in addition to the solid adhesive bed, the VipaBoard must also be secured with fixing dowels once the adhesive has set. Fixing dowels should be set at 400mm and 600mm centers (e.g. 8 fixings per 1200mm x 600mm VipaBoard). Seal the wall with a suitable water-resistant primer, before the adhesive is applied. The adhesive should be applied directly onto the wall using an 8-12mm notched tiling trowel, ensuring full coverage to the VipaBoard surface; solvent-based or ready-mixed adhesives must NOT be used. In certain circumstances, for example, uneven walls, it may be necessary to back butter the VipaBoard in addition to the adhesive applied to the substrate.
• Place the VipaBoard onto the wall surface, and bed firmly into place. Apply pressure to the VipaBoard surface, making sure there is good compaction of the VipaBoard into the adhesive, and that no hollow spots remain under the VipaBoard. Level the
• VipaBoards uses a straight edge to ensure a flat uniform surface is achieved. Stagger VipaBoard joints by fixing the VipaBoard in a brick bond style. Position the fixing dowels (required above 2.4mtrs) along the VipaBoard edge and also along the center line of each VipaBoard. The fixings placed along the center of the VipaBoard should be staggered from the VipaBoard edge fixings, creating a crisscross pattern on the VipaBoard surface.
• Additional fixings can be used to secure the VipaBoard firmly to the wall substrate.
• DO NOT ALLOW THE ADHESIVE TO FORM A SKIN AS THIS WILL PREVENT ADHESION.
• Fixing Coverage Guide
  • Adhesive: 4.5kg per m2
• Fixings: 12 per m2
  • fixing quantities may be reduced if washers are used to span adjacent VipaBoards
• Indicative Fixing Detail
  • using adhesive and fixing dowels. (1200mm x 600mm VipaBoard)

Dot and Dab onto Masonry Walls internal walls only

• fixed with cement-based adhesive dots and secure with fixing dowels. DRYWALL ADHESIVE MUST NOT BE USED.
• Note: VipaBoard must be 12.5mm thick or greater for fixing with Dot and Dab method.
• Make sure that the existing wall surface is stable and free of dust and grease. If the wall has a pre-finished surface e.g. plaster/render, and is in good condition, it may be possible to adhere to the VipaBoard without removing the existing finish, however, professional advice on the stability of the existing finishes and wall structure should be sought. All masonry walls, and cement and plaster finishes must be sealed with a suitable primer before cement adhesive is applied. To fix VipaBoard to walls, the dot and dab material used must be cement-based, flexible, fast-setting tile adhesive that meets classification C2 S1 or above.
• The adhesive dots must be applied directly to the VipaBoard with dots set at a maximum of 300mm apart. A useful tip is to create a pre-set hole through the face of the VipaBoard to show where the fixing dowels will be placed once the adhesive has been set.
• To avoid adhesive shrinkage, the tile adhesive dots must not exceed 15mm once compressed to the wall substrate. Place the VipaBoard onto the wall surface, and bed firmly into place in a brick bond style, leveling the VipaBoard surface with adjacent VipaBoard as you proceed. Apply pressure to the VipaBoard surface making sure there is good compaction of the VipaBoard onto the wall. In addition to the adhesive dots, VipaBoards must be secured using fixing dowels anchored with a minimum 50mm embedment into the masonry wall. Position the dowels through the center of the adhesive dots once the adhesive has set.
• Place dowels at between 400mm and 600mm centers (e.g. 8 fixings per 1200mm x 600mm VipaBoard). Position the fixing dowels along the VipaBoard edge and also down the center line of each VipaBoard.
• The fixing dowels placed down the center of the VipaBoard should be staggered from the VipaBoard edge dowels, creating a crisscross pattern on the VipaBoard surface.
• Additional fixings can be used to secure the VipaBoard firmly to the wall substrate.

Fixing Coverage Guide

• Adhesive 6kg per m2
• Fixings 12 per m2
• Indicative Fixing Detail
  • using adhesive dots and fixing dowels (2400mm x 600mm VipaBoard)
• Indicative Fixing Detail
  • using adhesive dots and fixing dowels 1200mm x 600mm VipaBoard

Taping Joints, Abutments, and Fixings

• All VipaBoard joints, abutments, and mechanical fixings must be bridged with a joint reinforcing tape, suitable for the intended use and the environment in which the VipaBoard is to be installed.
• For VipaBoard fixed in dry zones: Tape all joints, fixing washers, and holes in the VipaBoard using an alkaline resistant mesh such as VipaBoard Jointing Tape.
• For VipaBoard fixed in wet zones: Tape all joints, fixing washers, and holes in the VipaBoard with PCS Waterproofing Paste and PCS Waterproofing Tape.
• PCS Waterproofing Paste is a brush-applied liquid waterproofing membrane designed for use under tiles. Tiles should be fixed over PCS Waterproofing Paste & Tape using a cement-based tile adhesive that meets classification C2 S1 or above. Solvent-based, ready-mixed, and epoxy-based adhesives should not be used over the PCS Waterproofing Paste and Tape.
• Solvent-free epoxy grout, that meets classification R2, can be used to grout tiles that have been fixed over PCS Waterproofing Paste with a cement-based C2 S1 adhesive.

PCS Waterproofing Paste

• Although VipaBoard is 100% waterproof, moisture vapor can pass through the VipaBoard structure, when exposed to extremely high humidity over prolonged periods in environments such as steam rooms. To protect the VipaBoard against moisture vapor penetration in such harsh environments, we recommend applying PCS Waterproofing Paste over the entire surface of the VipaBoard. Covering all joints, abutments, and fixings with PCS Waterproofing Paste & Tape, will provide an effective vapor barrier with a moisture resistance value of µ41400, before fixing tiles.
• Domestic showering and bathing environments are not usually subject to prolonged high levels of humidity, and therefore, only require the board joints and fixings to be covered with PCS Waterproofing Paste and Tape. PCS Waterproofing Paste is very easy to apply using a paintbrush or roller. The instruction guidance supplied with the PCS Waterproofing Paste must be followed.
• PCS Waterproofing Paste is designed for use under tiles. Tiles should be fixed over the PCS Waterproofing Paste and Tape using a cement-based tile adhesive that meets classification C2 S1 or above. Solvent-based, ready, and epoxy-based adhesives should not be used over the PCS Waterproofing Paste. Solvent-free epoxy grout, that meets classification R2, can be used to grout tiles that have been fixed over PCS Waterproofing Paste with a cement-based C2 S1 adhesive.

Expansion/Movement Joints

• VipaBoard must not bridge expansion/movement joints. The integrity of such joints should be maintained through the VipaBoard and tile bed and should be sealed properly.

VipaBoard with Soft Floor Finishes

• Carpet, Vinyl floors, Vinyl tiles, Karndean, Amtico etc.
• When installing soft floor coverings over VipaBoard, the surface of the VipaBoard must be covered with a minimum 10mm thick hard-wearing, cement-based, flexible, leveling screed, capable of resisting high point loading. Tape all VipaBoard Joints before applying the leveling screed. The cement leveling screed must be left to cure before floor finishes are applied.
• Note: VipaBoard is not compatible with solvent-based adhesives. If solvent adhesive is required to fix floor finishes over VipaBoard, the surface of the VipaBoard must be covered with a cement-based, flexible, leveling screed, applied at a minimum thickness of 10mm. For floor finishes where solvent-based adhesive is to be used, care must be taken to ensure that the solvent adhesive does not come into contact with the VipaBoard.

VipaBoard with Wood Planking/Laminate Planking Floor Finishes (Floating Floor)

• For domestic projects, if the floor is flat and level wood planking/laminate planking can be fitted directly over VipaBoard.
• Lay the wood planking/laminate planking after fitting a foam underlay over the surface of VipaBoard. The type of underlay used will depend on the type of wood planking/laminate planking used.
• It is important to use a low thermal resistant underlay if underfloor heating is present.
• When installing wood planking/laminate planking over VipaBoard on commercial projects, the VipaBoard surface must be covered with a minimum 7mm thick, hard-wearing, cement-based, flexible, leveling screed, capable of resisting high point loading.
• Tape all Board Joints before applying the leveling screed. The cement leveling screed must be allowed to cure before floor finishes are applied.

VipaBoard with Solid Wood Planking/Wood Blocks fixed using Adhesive (Solid Floor)

• When fixing Solid Wood finishes over VipaBoard, the surface of the VipaBoard must be covered with a minimum 7mm thick hard-wearing, cement-based, flexible, leveling screed, capable of resisting high point loading.
• The cement screed must be allowed to cure before floor finishes are applied. Fix the Solid Wood onto the leveling screed under the solid wood manufacturer’s instructions.
• Note: VipaBoard is not compatible with solvent-based adhesives. If solvent adhesive is required to fix floor finishes over VipaBoard, the surface of the VipaBoard must be covered with a cement-based, flexible, leveling screed, applied at a minimum thickness of 7mm. For applications where solvent-based adhesive is to be used, care must be taken to ensure that the solvent adhesive does not come into contact with the VipaBoard.

VipaBoard with Under Floor Heating

• VipaBoard is a thermally insulating construction board, and when installed below underfloor heating will improve the heating system performance by significantly reducing downward heat loss.
• VipaBoard is compatible for use with water-based and electric cable underfloor heating systems. VipaBoard must not be fixed over floors that have an existing underfloor heating system installed.

Tile Choice for Floors

• When choosing tiles for your floor it is important to consider point loading. Applying larger tiles improves the VipaBoard’s resistance to concentrated loads.
• For areas that may be subject to concentrated loads over 0.21 N/mm2, advice should be sought to determine suitability.
• All tiles must be fixed using a solid bed of adhesive, ensuring no voids remain under the tiles. Tiles should be fixed using good quality, flexible cement-based tile adhesive that meets classification C2 S1 grade or above.
• Solvent-based or Ready-mixed adhesives MUST NOT be used. The chart below shows resistance to concentrated loads based on a 1mm deflection over a range of standard tile sizes.

Indicative Tile Size Examples| 300mm x 200mm| 150mm x 150mm| 100mm x 100mm| 50mm x 50mm
---|---|---|---|---
Load Resistance Over Tile Surface| 1260kg| 472kg| 210kg| 52.5kg

Tile fixing to Walls

• Tiles can be fixed directly to VipaBoard using a good quality cement-based, flexible tile adhesive that meets classification C2 S1 grade or above. Solvent-based or ready-mixed adhesives MUST NOT be used.
• Advice from the tile manufacturer must be sought regarding the mechanical securing and fixing of tiles onto walls above 2.4mtr.

Plastering

• All joints, abutments, and fixings, must be bridged with a suitable joint reinforcing mesh such as VipaBoard Jointing Tape.
• Before skim coating with plaster, the surface of the VipaBoard must be sealed using a suitable primer and applied under the manufacturer’s instructions.

Flexible Synthetic Render Systems

• VipaBoard is compatible with highly flexible synthetic render systems that require the application of a reinforcing base layer and a reinforcing mesh before a final finishing coat is applied.
• Traditional sand & cement-based render systems are not compatible for use with VipaBoard.
• Advice and guidance must be sought from the manufacturer regarding the preparation of the VipaBoard before applying external render.

NOTE:

• VipaBoard must be stored flat at all times, leaning the VipaBoard against a wall can cause them to warp slightly before installation. If this occurs, they can be straightened by applying a minimal amount of hand pressure.
• This correction will not affect the performance of the VipaBoard.
• When fixing VipaBoard in conditions where temperatures can fluctuate considerably it will be necessary to protect the boards from extreme temperature fluctuations, allowing any adhesive used to set properly.
• Building Regulations
• All information is given as guidance and if adhered to will perform as intended.
• We fully guarantee the quality of our products, however, as we do not know site conditions or the capability of the installer, we cannot accept liability for damage that may arise due to a result of incorrect installation.
• The information and advice provided by PCS does not override nor supersede building regulations.
• It is the responsibility of the user to seek professional guidance to ensure PCS products are compatible with their intended use and that the products comply with building regulations.
• PCS Ltd
• Hemfield Court, Makerfield Way, Ince, Wigan, WN2 2PR
• Tel: +44 (0) 1942 820131
• Web:www.pcsboard.com

References

• Tile backer board manufacturer - Thermal Construction Products

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