Wall & Ceiling Expansion Joint Covers
Wall and ceiling expansion joint covers accommodate movement in interior walls, ceilings and exterior facades while presenting a clean architectural line — and, outside, staying watertight.
Where they’re used
Interior corridors, atriums and ceilings; and exterior facades and curtain-wall interfaces where thermal, wind-sway and seismic movement must be absorbed without cracking finishes or letting water in.
Key specifications
| Parameter | Best-in-class |
|---|---|
| Movement | ±50% (100% total), multi-directional — ASTM E1399 Category IV |
| Gap range | 25–150 mm (wider on request) |
| Watertight | Optional watertight seal for exterior facades |
| Finish | Mill / anodised / powder-coat — wide colour range |
Two system types
- Metal cover-plate — a free-floating aluminium centre plate over a base frame; best for large gaps, tamper resistance and a flush architectural finish.
- Foam / silicone-sealed — a non-invasive watertight seal that stretches and compresses; best for facades, curves and inside corners.
Frequently asked questions
What is a wall expansion joint cover?
A cover system that spans the movement gap in a wall, ceiling or facade, absorbing multi-directional movement while giving a clean finished line and, outside, a watertight seal.
Which is better — metal cover or sealed joint?
Metal cover-plates suit large gaps, tamper resistance and flush finishes; foam/silicone sealed joints suit watertight facades, curves and inside corners. The choice depends on the location and movement.
© Dseal — building expansion joint systems, EPDM seals & membranes.