Applications
Rooftop and roof terrace WPC decking
Create usable outdoor rooms above the waterproofing — without treating the membrane as a screw board.
Can I install WPC decking on a roof terrace?
It depends on the waterproofing and access. WPC on pedestals or a membrane-aware subframe usually wins when you want a timber look without screwing into the roof finish. Aluminium systems can win where weight is tight. Hardwood is rarely ideal on exposed roofs because of finishing labour and moisture movement. Protect the membrane first, plan wind edges, and expect upper-band pricing when crane or lift logistics apply. Jobs are subject to the S$1,000 minimum.
Protect the membrane first
A roof terrace fails when decking installers treat waterproofing as a finish to decorate over casually. Pedestal systems and protective layers keep falls working and inspection routes open. If the membrane is already compromised, repair it before dressing the roof.
Wind, falls and access
High terraces see stronger wind uplift at edges and parapets. Edge boards and skirting need mechanical sense, not just aesthetics. Material staging through lifts or cranes affects cost as much as board grade.
Confirm railing and fall-protection rules with your MCST or QP where relevant — decking does not replace safety codes.
Board and subframe choices
Capped boards cope with full UV. Aluminium pedestals help create a service cavity. Lighter colours improve barefoot comfort on unshaded roofs. Pair this page with our MCST article for condo paperwork.
Related guides
FAQ
How do I get a WPC decking quote?
Tell us your property type and area — we reply on WhatsApp with next steps and an indicative range.