Most panel installation problems begin with an unsuitable or poorly prepared substrate. The panel, adhesive, mechanical fixing and wall condition must be treated as one system.
Substrate review table
| Substrate | Check first | Possible route | Common risk |
|---|---|---|---|
| Gypsum board / drywall | Board stability, framing, joints, surface coating | Compatible adhesive and/or fixing into suitable support | Fixing only into weak face paper or unstable board |
| Concrete / masonry | Flatness, moisture, dust, curing and surface contamination | Prepared adhesive route or batten/subframe | Poor bond, dampness and telegraphing unevenness |
| Plywood / wood | Movement, moisture, fastening and surface treatment | Adhesive and/or concealed mechanical fixing | Panel movement caused by unstable timber substrate |
| Existing tile | Tile adhesion, flatness, cleanliness and compatible primer | Only after fixing-system approval | Bonding to loose, polished or contaminated tile |
| Batten / framing | Spacing, alignment, material, anchorage and load path | Approved concealed mechanical fixing | Unsupported joints or distorted panel alignment |
Pre-installation checklist
- Substrate is stable, dry, clean and within the required flatness.
- Moisture source and building leakage have been resolved.
- Service routes, openings and access panels are coordinated.
- Adhesive TDS or fixing instructions match the substrate and panel.
- Starting line, orientation, joints, trims and expansion details are approved.
- Material is conditioned and stored according to the final instructions.
What the website cannot decide remotely
Site flatness, moisture, wall strength, fire-stopping, structural support and local code requirements require project review. Photographs help an inquiry, but they do not replace an appropriate site assessment.