Fast-R Render Brickwork System Specification

For detailed information on Unitex Products, Systems and Warranties, please contact:
Position: National Sales Manager
Name: Luke Molloy
Phone: 0419 114 633
Email: luke.m@unitex.com.au

Responsibility

All works in this section shall be the responsibility of the Main Contractor, unless previously agreed in writing. Unitex Granular Marble Pty Ltd accepts no responsibility for defective workmanship in relationship to the application of the Unitex system, or for defects in the design, construction, or condition of the building, either as built or in relation to the works.

The Main Contractor is to ensure that they are fully conversant with exterior legislation requirements, the project specifications and details, current Brickwork Specifications & Unitex specification (www.unitex.com.au) and any specific installation requirements relating to the Main Contractors responsibilities before any works commence. If there are any substitution of products or systems, the Main Contractor is to provide Builder with Unitex written, site-specific specifications. Before any works commence, the Main Contractor is to supply on-site, a 2m2 to 5m2 sample of the complete system for the Builders approval for substrate adhesion, build thickness, and finish quality.

The Main Contractor is also responsible for the various subcontractors to ensure that all items relating to substrate adhesion, weather tightness, penetrations and dissimilar material junctions affecting the construction system are strictly in accordance with project specific details, manufacturer’s instructions and Unitex specification details i.e. items such as roofs, soffits, openings, lights & security fittings, electrical wiring, flashings, deck membranes dissimilar junctions etc. that abut, flash or penetrate the system.

The Main Contractor shall also ensure that all work is only carried out by competent contractors able to deliver the finished Unitex System, in accordance with the project drawings, manufactures details and Unitex specification details.

Note: If the Main Contractor has the opinion that the specification is not suitable for site conditions, the Builder and Unitex must be consulted with the concerns prior to any works commencing. i.e. Specifying a non-cavity system where a cavity system would be more suitable.

Substrate Construction

The substrate will be expected to be installed according to manufacturers, architect and engineering specifications and shall be inspected prior to application by the Main Contractor, and any variations from specifications or requirements communicated in writing to the Builder prior to the commencement of Unitex System works.

The substrate surface must be cleaned free of any grease, oils, scaling laitance, efflorescence, form-oil compounds, mould, fungi, rust, dirt, dust or any other foreign matter.
Pre-painted surfaces must be wire-brushed back to the bare substrate, or a Hatch Test performed to assess coatability.

All surfaces MUST be suitably prepared for the Unitex System installation.

Prior to works commencing, check the surface is level and straight in all directions. If the substrate contains expansion joints, care should be taken to ensure they are maintained.

Note: If substrate installation and quality is doubtful the Substrate Manufacturers Representative should be contacted for a site inspection and approval before any work is undertaken.

Preparation

If the Builder has not protected adjoining surfaces, i.e. windows and frames etc, the Main Contractor must protect all other surfaces prior to works commencing.

Scaffolding

The scaffolding must be installed according to the requirements of all local and safety authorities, providing suitable access for the Main Contractor to complete the project to the required standards.

Control Joints

All expansion, control and cosmetic joints are to be nominated by and are the responsibility of the builder. Only Builders, and the Builders nominated engineer / architect etc. and base system provider can predict likely building and surface effect movement.

An allowance for more, rather than less expansion/contraction joints provides the greatest opportunity for a quality finish by the applicator and prevention of structural movement cracking.

Structural movement cracking is not covered by Unitex product warranty.