Insulating a Polycarbonate Conservatory Roof

Polycarbonate conservatory roofs are the most common type in the UK, and unfortunately they're also the worst performers when it comes to insulation and noise. The thin plastic panels offer almost no thermal resistance.

Over time, polycarbonate panels also discolour, crack, and become brittle. While replacement panels are available, they don't solve the fundamental insulation problem.

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The most effective upgrade for a polycarbonate roof is an internal insulated ceiling. This fits beneath the existing roof, creating a thermal and acoustic barrier that transforms the room's comfort.

Unlike glass roofs, polycarbonate roofs don't require any glare reduction treatment before the ceiling is fitted. The ceiling is fixed directly to a timber subframe beneath the existing panels.

The installation is clean and typically completed in a single day. Your existing roof stays in place, providing ongoing weather protection above the new ceiling.

Frequently Asked Questions

Should I replace my polycarbonate roof or insulate it?

In most cases, insulating beneath the existing roof is the smarter choice. It's faster, cheaper, and less disruptive than a full roof replacement — and delivers similar comfort improvements.

What if my polycarbonate panels are damaged?

Minor damage typically doesn't affect the installation. The insulated ceiling sits beneath the roof, so cosmetic issues with the polycarbonate above are no longer visible or relevant.

How long does a polycarbonate roof insulation take?

Most installations are completed in a single day. We arrive in the morning and by the afternoon your new insulated ceiling is in place.

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