Key Features
- Expandable sides as standard
- Thermally rated insulated core
- Keeps the heat in and the cold out
- Huge range of hardware options available
Steeldor Thermal was developed to meet the stringent door efficiency requirements outlined in Part L of the updated Building Regulations mandated by the government. Featuring an insulated internal Rockwool core, the leaf achieves an impressive U-value as low as 1.5 W/m2K, aligning with the specified guidelines of 1.6 for new dwellings and 1.8 for new commercial buildings in England.
As the UK government aims to reduce carbon emissions and achieve net-zero emissions by 2050, significant changes have been implemented in building regulations to enhance the energy efficiency of structures. Notably, revisions to Part L now establish minimum standards for U-values in steel doors, driving innovations like Steeldor Thermal to meet and exceed these benchmarks.