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Flooring

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Flooring HYer Standard

Purpose and Scope

The purpose of this procedure is to ensure that the various flooring materials and their components have been installed as per the relevant project documentation, Australian Standards and in compliance with other Hansen Yuncken HYer Standards and procedures.

There are various types of flooring materials to consider.  The following types of flooring materials includes, but is not limited to the following:

  • Tiling (Ceramic/Stone/Terrazo)
  • Resilient Finishes – Vinyl/Rubber/skirting/Underlays
  • Carpet
  • Carpet Tiles
  • Entrance Mats
  • Timber Flooring
  • Resin

Responsibilities

Project Manager

  • Ensuring design changes are assessed for constructability risks.
  • Ensure any design constructability risks are assessed, controlled, and documented in the Project’s Risk Register.
  • Ensuring any constructability risks identified are communicated to workers performing the work and the HY project team.

HY Project Team

  • Obtaining and reviewing project documentation, drawings, and specifications.
  • Managing workflows to document RFIs and design changes.
  • Managing the project’s document registry and communicating documentation to relevant parties.
  • Communicating requirements for submittals, warranties, and inspection and test plans to Subcontractors and other parties as applicable.
  • Ensure nominated subcontract users are registered in the QA platform and invited to the Project Profile.
  • Ensuring relevant quality control pre-work checks are complete prior to starting works.
  • Ensuring any applicable hold and witness points are in place and adhered to.
  • Receiving and controlling submittals, warranties, and inspection and test plans.

Subcontractor Supervisor

  • Ensure personnel responsible for using the QA platform are registered and have means to access the platform via mobile or desktop devices.
  • Ensuring relevant quality control pre-work checks are complete prior to starting works.
  • Ensuring any applicable hold and witness points are adhered to.
  • Providing any required submittals, warranties, and inspection and test plans.

Quality Verification

Hansen Yuncken predominantly utilises Autodesk platforms (BIM360 and ACC) to carry out quality control checks and verifications. Subcontractor supervisors or nominated representatives must have a registered Autodesk account and be invited onto the Project Profile by the HY project team. 

The Flooring Checklist in the QA platform is to be completed prior to and throughout the relevant stages of works.  HY representatives are responsible for completing the header and site preparation sections. The subcontractor representatives are responsible for completing their respective sections respectively. All hold points must be adhered to and verified by the HY representative to proceed.

Guidance on the use of software for Subcontractor users can be accessed via the Onboarding Induction and Training Procedure.

Note: Defence Projects and select Government Projects may have unique requirements regarding Quality Control and the use of software packages to carry out verifications.  The agreed methods and software packages will be determined at Project Commencement considering the specific project needs and client requirements.

Preparation

Project drawings and specifications will detail the locations and requirements of the various flooring types and materials to be installed. The latest revisions of drawings and specifications are to be referenced for the works, which are to be provided to the subcontractors carrying out the works.

Approvals 

Submittals, samples, and materials are to be identified, reviewed, and approved by the respective responsible parties in accordance with project specifications prior to works beginning. Any changes are to be captured via appropriate channels for the project (e.g., Aconex Workflow) and communicated to workers. 

The flooring type and associated materials is to be verified in accordance with the project drawings and specifications. 

Area Preparation and Materials

The following items are to be verified prior to installation:

  1. Curing compound/surface sealers have been removed from substrate.
  2. Substrate is clean & dry, free from oil, grease & projections and free of low spots/uneven surface.
  3. Substrate has been prepared with correct falls.
  4. Acoustic underlay material is in accordance with specified requirements and approved samples.
  5. Flooring materials are in accordance with specified requirements and approved samples.
  6. Compatibility of sealants/adhesives with flooring and substrate confirmed.
  7. Substrate moisture content is suitable for specified adhesives.
  8. Adjacent surfaces & finishes have been adequately protected.

Timber:

The following items are to be verified:

  1. Timber Flooring has been climatised prior to fixing.
  2. Underlay has been installed in accordance with manufacturer’s requirements and as specified.
  3. Timber Flooring has been laid in correct direction.
  4. Timber Flooring end joints have been staggered.
  5. Appropriate expansion gaps installed at Floor-Wall abutment in accordance with manufacturer specification (10-12mm must be observed unless otherwise specified).
  6. All fixings have been appropriately recessed and finished/concealed as specified.
  7. No excessive bounce or squeaks in Timber flooring.
  8. Timber Floors have been sanded and prepared to receive specified finish.
  9. Timber floors have been finished using approved/specified sealer in accordance with manufacturer’s specification.

Carpet:

The following items are to be verified:

  1. Underlay has been installed in accordance with manufacturer’s requirements and as specified.
  2. Carpet has been installed to approved laying plan & power stretched.
  3. Carpet installed in accordance with AS/NZS 2455.1 – Pile direction is the same at each side of joint.
  4. Smooth edge has been securely fixed at perimeter.
  5. Carpet has been adequately stretched and is free of folds.
  6. Carpet Tiles installed in accordance with AS/NZS 2455.2.
  7. Approved trims have been installed in specified locations.

Vinyl:

The following items are to be verified:

  1. Vinyl Adhesive/bonding has been spread evenly and correct/consistent thickness.
  2. Vinyl Adhesive/bonding has not been applied too far in advance of flooring to ensure correct adhesion.
  3. Vinyl Adhesive/bonding is free from bubbles & other irregularities.
  4. Welded jointing colour & finish is acceptable.
  5. Vinyl joint spacing is within limits to manufacturers specification.
  6. Position, extent, alignment & width of vinyl joints is correct.
  7. Alignment of vinyl joints with other elements is correct
  8. Alignment & pattern of vinyl at joints is correct.

Tiling:

The following items are to be verified:

  1. Finished floor surface is smooth, free of undulations and in accordance with specified tolerances.
  2. Tiling installed to approved/specified set-out.
  3. Tiling installed in accordance with AS3958.
  4. Movement/control joints installed to approved details and as specified.
  5. Application of adhesive consistent to eliminate “drummy” tiles (>90% coverage required per tile unit).
  6. Tiling adhesive allowed to set (min. 12hr) prior to application of grout.
  7. Grout application consistent in accordance with approved sample (penetration/colour and finish).
  8. Grout/Joints – width and alignment is within acceptable tolerances.
  9. Joint filler & sealant has been installed in accordance with manufacturer’s recommendations.
  10. Flooring Texture & finish is in accordance with approved sample/prototype.
  11. Levels, grades & falls are in accordance with specified requirements.

Protection of Works

The protection of floor materials is to be assessed on an ‘as needs’ basis. The level of protection required will depend on whether or not access control to the space is available (the preferred option). If access control is not available, the type of access required, the substrate for the tiles, and the trades or activities to follow will also be considered.

For example, if the area has minimal access by other trades and no heavy materials will be trafficked over the tiles, drop sheets might be appropriate when specific trades are working in that space. However, if the space serves as a main thoroughfare for trafficking materials like trolleys and pallets, sturdier protection, such as a thick ply, will be required.

Where very heavy materials or equipment are expected, consultation with an engineer should take place to determine allowable loads, and suitable arrangements must be made accordingly. It is advisable to consult the supplier for appropriate protection methods to ensure that the protection itself does not cause damage.

Specifications and Compliance 

Current Project Specifications are to be used to confirm all approvals, samples, and submittals required for the project. Project Specification requirements are to be entered into the Project’s Compliance Schedule. 

The following approvals/samples may be required: 

  • Flooring samples and prototype

The following supporting documentation or submissions may be required from the subcontractor:

  • Flooring Subcontractor completed QC checklist items/QC records provided.
  • Adhesive/bonding agent compliance certificate or records.
  • Grout compliance certificate or records.
  • Medical grade vinyl certificate (if required).
  • Floor materials compliance certificate or records including slip resistance test reports.
  • Acoustic underlay compliance certificate or records

Hold/Witness Points to be adhered to throughout works:

  • Flooring types are in accordance with approved plans and flooring schedules.
  • Substrate/Supporting Structure has been accepted by Flooring subcontractor
  • Workmanship is in accordance with approved sample/prototype.

Definitions

ITP – Inspection and Test Plan

NCC – National Construction Code

RFI – Request for Information

References

  • Timber:
    • AS 1860.1 – Particleboard flooring Installation.
    • AS 1884 – Floor coverings – Resilient sheet and tiles – Installation practices.
    • AS 2796.2 – Timber – Hardwood – Sawn and milled products Grade description.
    • AS 4785.2 – Timber – Softwood – Sawn and milled products Grade description.
    • AS/NZS 2269.0 – Plywood – Structural Specifications.
    • AS/NZS 2455.1 – Textile floor coverings – Installation practice General.
  • Carpet:
    • AS 2455.1 – Textile floor coverings – Installation practice General.
    • AS 2455.2 – Textile floor coverings – Installation practice Carpet tiles.
    • AS 4586 – Slip resistance classification of new pedestrian surface materials.
  • Vinyl:
    • AS/NZS 2908.2 – Cellulose-cement products Part 2: Flat sheets.
  • Tiling:
    • AS 2358 – Adhesives—For fixing ceramic tiles.
    • AS 3958.1 – Ceramic tiles Part 1: Guide to the installation of ceramic tiles.
    • AS 4459 – Methods of sampling and testing ceramic tiles Sampling and basis for acceptance.
    • AS 4586 – Slip resistance classification of new pedestrian surface materials.

Associated Checklists and Documents

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