What wears out outdoor signs
- Sun (UV) – the main cause of fading and of plastics becoming brittle. North- and west-facing signs in South Africa get intense sun.
- Heat – expands and contracts materials and can affect adhesives.
- Rain and moisture – attacks edges, cut steel and poorly sealed joints.
- Wind – strains banners, flags and fixings, especially on solid materials.
- Dust and pollution – dulls surfaces; harsh cleaning then scratches them.
- Physical knocks – vehicles, ladders, people and vandalism.
Indoor signs have it easier
Indoors, signs mainly face handling, cleaning, sunlight through windows and occasional knocks. That opens up lighter and cheaper materials, such as foam board, paper posters and perspex, as well as finishes like matt laminate that reduce glare under office lights. Signs near windows can still fade over time, so treat sunny window positions more like outdoors.
Choosing for outdoors
- Rigid boards: ACP and chromadek for long-term use; correx for short-term only.
- Banners: PVC for general use, mesh for windy, exposed sites.
- Vinyl: outdoor-grade vinyl for vehicles, windows and boards.
- Lamination: protects printed vinyl from scratches and slows fading.
- Paper: not suitable for outdoor use.
See choosing the right sign material for full details.
Placement helps more than you think
- Shade from a canopy or overhang extends sign life considerably.
- Mount banners and flags so they cannot flap against walls or edges.
- Keep signs away from irrigation sprays and gutters.
- Mount at a height that avoids casual knocks and vandalism where possible.
- Take banners, flags and gazebos down in strong wind.
Expect and plan for change
No outdoor sign lasts forever. Lifespan depends on material, exposure and care, so we do not give fixed lifespans. Plan to refresh promotional graphics regularly, and choose durable materials for signs that must last. Regular gentle cleaning helps; see sign care and maintenance. Tell us where your sign will go when you request a quote, and we will recommend materials to suit.
