PureSolid® Composite Castellated Cladding

Installation Guide

1. Product Overview

PureSolid Castellated Cladding is an innovative, re-finished composite wall cladding system.
Featuring a unique four-ribbed castellated profile, it delivers a modern architectural finish suitable for both residential and commercial projects.

2. Colour Range

Please refer to the official website for the latest available colours:
👉 https://puresolid.com.au/pages/cladding-landing

3. Product Specifications

4. Important Safety & General Notes

Read all sections carefully before installation

4.1 Safety Requirements

Always wear appropriate personal protective equipment (PPE), including:

• Safety gloves

• Safety glasses

• Long sleeves and pants

• Respiratory protection when cutting

4.2 Tools & Fixings

• Standard woodworking tools may be used

• All cutting blades must be carbide-tipped

• Use stainless steel or approved coated deck screws and nails only

5. Storage & Surface Preparation

• Cladding boards must be stored flat at all times

• The installation surface must be:

  • Clean

  • Flat

  • Smooth

  • Structurally sound

6. Expansion & Movement Allowance

Australia’s temperature range can vary from 15°C to over 40°C.

• Composite cladding expansion rate: ~2mm per linear metre

• Leave adequate expansion gaps at:

  • Panel joints

  • Trims

  • Corners

Pre-Drilling Requirement

• All fixings must be pre-drilled with a 5mm hole

• This allows natural expansion and contraction of the boards

7. Sub-Frame Requirements

⚠️ Composite cladding must NOT be fixed directly to walls.

Recommended Sub-Frame Specification

• Structure: BCA-compliant framing

• Timber size: 70mm × 35mm

• Timber type: H3 treated pine

• Joist spacing: 350mm – 600mm

• Fixings: Stainless steel screws only

• Screw size: 8g × 30mm

8. Professional Installation Required If:

You must engage a qualified installer or builder if:

• The cladding is installed as a ceiling

• The project is commercial

• Wall height exceeds 2.2 metres

9. Installation Procedure

9.1 Batten Installation

• Minimum clearance between the lowest batten and the floor: 40mm

• Minimum clearance between top batten and ceiling: 10mm

Wall layout references:

• Wall A: Between Trim and Inside Corner

• Wall B: Between Inside Corner and Outside Corner Trim

• Wall C: Between Outside Corner Trim and Trim

• 

9.2 Trim & Cladding Installation Steps

Step A – First Board & Trim A

• Cut the first cladding board to size

• Insert into Aluminium Trim A

• Fix the trim to the batten with screws

• Maintain 20mm clearance from the floor

Step B – Install First Board

• Insert the first board into Trim A

• Fix the board to the battens with screws

Step C – Install Subsequent Boards

• Install the second board over the first

• Fix to battens

• Continue upward in sequence

Step D – Inside Corner Finish

• Measure the remaining gap at the inside corner

• Cut the final board accordingly 

• Fix the board securely to the battens

Step E – Outside Corner & Trim B

• Cut the first board and fix Trim B to the battens

• Install boards sequentially as before

• For final board:

  • Measure and cut

  • Insert Trim A

  • Fix securely

9.3 Final Appearance

After installation is complete, the cladding should present a clean, aligned, and uniform finish.

10. Notes on Trims & Accessories

• Corner and trim solutions may vary by design and material

• Currently, we supply L Angle and J-Channels

• Please contact PureSolid for:

  • Latest trim profiles

  • Compatible accessories

  • Current stock availability