July 24, 2026

PREVIEW: aug FOCUS ON… Rytons A1® Retrofit Kits. More Choice. More Flexibility. Easier Installation.

Rytons A1® Fire-rated Retrofit Ducting Kits

Now with NEW Floating Flange Option

From working closely with customers, we know every cladding refurbishment project is different and that installation flexibility can make all the difference.

To help make retrofitting non-combustible HVAC ducting as straightforward as possible, Rytons A1® Fire-rated Retrofit Ducting Kits are now available with a NEW floating flange option. The floating flange can be positioned anywhere along the duct to suit site requirements, giving installers flexibility to find the most appropriate fixing position. The new floating flange complements our existing fixed flange, which is positioned at the end of the duct for attachment to the cavity board.

Rytons A1® Fire-rated Retrofit Ducting Kits are available in three duct sizes – 110x54mm, 204x60mm single, 204x60mm double and 220x90mm – and in straight, 90° balcony and angled designs.

Manufactured from A1 classified galvanised steel, they are designed to encase in situ plastic ductwork and allow external installation without requiring access to occupied apartments.

A1 Retrofit 90° Balcony Ducting Kits
  • Balcony ducting kits.
  • Ideal for confined spaces.
  • Customise the drop.
A1 Retrofit Straight Ducting Kits
  • Straight through ducting.
  • Customise the length.
  • Fixed or floating flange option.
A1 Retrofit Angled Ducting Kits
  • Any angle made to order.
  • Bypass obstructions.
  • Customise the length.

If you would like to discuss a project with retrofit ducting or other non-combustible ventilation requirements, please do not hesitate to call our technical sales office on 01536 511874 or email admin@rytons.com.

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