Why We Recommend the LEKA Warm Roof System for Your Conservatory Roof Replacement
At 2Hot2Cold, we specialise in conservatory roof replacements — and we’re often asked why we’ve chosen to work with the LEKA Warm Roof System.
It’s a fair question. We spent years exploring alternatives, looking for a system that could deliver on energy efficiency, structural integrity, and peace of mind for our customers. LEKA stood out from the crowd — and here’s why.
1. Outstanding Thermal Performance
Energy efficiency has never been more important — whether you're hoping to reduce your carbon footprint or simply lower your energy bills.
The LEKA Warm Roof boasts U-values as low as 0.12, making it one of the most thermally efficient systems on the market. That’s not just a major improvement on glass or polycarbonate roofs — it’s also streets ahead of rival systems which still rely on heavy aluminium rafters and outdated insulation methods.
That means:
- A room that stays cool in summer and warm in winter
- Lower heating bills
- A more comfortable, energy-efficient space you can enjoy all year round
2. Building Control Compliant
If you’re replacing your conservatory roof, you may be wondering whether Building Control approval is required. With the LEKA system, you’re in safe hands.
LEKA is fully approved by MFA Building Control, a Government-licensed inspector under the Construction Industry Council (CIC). Every component has been rigorously assessed, including:
- Structural calculations
- Condensation risk analysis
- Thermal performance (U-values)
- Installer training and accreditation
This means your roof isn’t just fit for purpose — it’s fully Building Regulations compliant, giving you long-term reassurance and the certification to match.
3. Innovative Materials, Expertly Designed
LEKA has completely re-engineered how conservatory roofs are built — with Glass Reinforced Plastic (GRP) forming the backbone of the structure. Here’s what makes it so different:
- GRP Rafters: Lightweight yet incredibly strong, they won’t rot, absorb moisture, or conduct heat like aluminium or timber.
- Internal Leka Sheets: 100% waterproof and one-third the weight of plasterboard, with excellent thermal properties and a finish ready for either plaster skim or board.
- Celotex Insulation: A trusted name in thermal efficiency, built into every roof for superior performance.
- External Boarding & Membrane: Weatherproof, breathable, and topped with premium lightweight tiles that look just like natural slate.
Every layer is purpose-built to create a conservatory roof that performs beautifully for years to come.
4. Fast Installation, Lasting Comfort
Once your survey is complete, most LEKA roofs can be installed in just 2–3 days. The process is clean, efficient, and carried out by our experienced 2Hot2Cold team with minimum disruption to your home.
And with a 40-year manufacturer’s warranty on LEKA components, backed by our own 10-year insurance-backed guarantee, you’ll enjoy total peace of mind.
5. Industry Recognition and Standards
LEKA is approved by VEKA, one of the UK’s most respected installer networks. It’s a system trusted by professionals and designed for homeowners who want quality, compliance, and long-term performance.
In Summary: Why We Recommend LEKA at 2Hot2Cold
✔️ Ultra-low U-values (from 0.12)
✔️ Lightweight and long-lasting GRP frame
✔️ Full Building Control approval via MFA
✔️ Installed in just 2–3 days
✔️ 40-year frame warranty + 10-year guarantee
✔️ Stylish finish with a tiled look
✔️ Recognised as one of the UK’s leading conservatory roof replacement systems
If you're ready to transform your conservatory into a usable room all year round, the LEKA Warm Roof from 2Hot2Cold is one of the most effective ways to do it.