Leka System — Trade Supply
Leka Orangery
Roof Kits
Complete orangery conversion kits — strip out glass, polycarbonate or dated fibreglass and replace it with a lightweight tiled warm roof. U-values from 0.10.
The Detail
A Clear, Practical Upgrade
For Orangery Installations
Built on the patented Leka GRP framework to BS EN13706, with U-values from 0.10 and a finished weight close to the glass being replaced. Keep the glass lantern for height and daylight, or specify optional LEKA Skylites.
GRP rafters with Celotex insulation eliminate the cold-bridge at the ring beam that plagues timber and aluminium hybrids — no rot, no swelling, and a ceiling ready for plaster skim and low-energy downlights.
Genius engineering: four simple ladder kits meet building regulation U-values off the shelf, every component is two-person handleable, and the roof is weather-tight in days. Proven across a network of over 10,000 completed Leka installations.
Weight
Truly Lightweight
Within ~10–12% of the weight of the glass unit it replaces. No roof-line reinforcements, no structural steels, no demolition to masonry.
Thermal
Better Insulated, Better Looking
No cold-bridge at the ring beam. Warm in January, cool in July — a genuine year-round room your customers will show off.
Assurance
Itemised Trade Quotes
We help you choose ladder kit, tile finish and lantern option, then quote with lead time, delivery window and a full component schedule.
Why trade installers choose it
Why Installers Choose The
Leka Orangery Warm Roof
■Truly lightweight
No structural steels required — the load stays within what existing orangery structures accept, subject to survey.
■Leka Insulated Board
Factory-cut Leka boards with Celotex dropped between GRP rafters — service routes pre-planned before despatch.
■2–3 day weather window
Strip and re-roof inside a working week, without opening the masonry — less risk, less scaffold time, happier customers.
■Improved energy efficiency
U-values from 0.10 with the 40-year LEKA component warranty behind every kit.
10,000+
UK Homes Fitted With Leka
3,000
Systems Fabricated Yearly
95%
On-Time Delivery
40 Yr
LEKA Component Warranty
Ready to Spec This
On Your Next Job?
Send site measurements, a survey sketch, or a short description of the job — price and realistic lead time usually within one working day.

