Correx Site Signage in Northern Ireland: Boards That Survive the Weather

Outdoor signage fails when the substrate is wrong for the job. A foamex board in a shop window looks sharp; the same board on a building site will warp and scuff. A PVC banner covers a fence cheaply but needs a structure to tie to and flaps in the wind. Correx — fluted polypropylene — is the usual answer for temporary outdoor boards in Northern Ireland: light, rigid, weather-resistant and inexpensive enough to replace when the project moves on.

What correx is actually for

Correx is a corrugated plastic sheet, typically around 4mm thick, printed in full colour. It does not absorb rain, it is light enough to carry up a ladder, and it takes cable ties, screws or a post-mounted frame. That combination is why contractors, estate agents, event organisers and local campaigns use it for site ID, safety notices, to-let boards and roadside direction signs.

• Construction and development site boards
• Estate agent and to-let boards
• Event wayfinding and temporary notices
• Roadside or perimeter signs that need to stay readable in rain

Correx vs foamex vs PVC banners

Choose correx when the board must live outdoors for weeks or months and still look presentable. Choose foamex for indoor display, exhibitions and windows — the face is smoother and the edge looks more finished, but it is not a weatherboard. Choose a PVC banner when you need cheap coverage over a large area and have railings, heras fencing or a wall to fix to. Many sites use all three: correx at the gate, a banner on the hoarding, foamex in the show home.

Specify it so it lasts

Keep text large enough to read from a passing car if the board will sit at the roadside. High contrast beats clever colour palettes once the light drops. Leave a clear margin so fixing holes do not punch through a logo. If the board will be post-mounted, say so — we can advise on size so it does not become a sail. Artwork should be a PDF at the finished size with 3mm bleed; vector logos stay sharp when the board is viewed close up.

If it has to stand outside until the job is finished, correx is usually the substrate — not the indoor board and not the banner.

We print correx from our Lisburn press with collection locally or delivery across Belfast and Northern Ireland. For indoor or exhibition work see foamex; for large outdoor coverage see PVC banners.