A U-value is a measurement of the rate at which heat transfers from a structure. The higher the U-value means more heat passes through the structure. Part L building regulations have previously stated that for home extensions and conservatory roofs, U-values should not be higher than 0.18 W/m2K in refurbished cases and 0.16 W/m2K for new builds.
However, since 15th June 2022, these U-value requirements have changed. The government's aim is for lower U-values to reduce heat transfer as part of the broader initiative to meet reduced carbon targets. Lowering U-value limitations also means homeowners can benefit from improved energy savings as there is less need for additional heating and cooling of the home. Now all new build roofs on extensions and conservatories should have a U-value of no higher than 0.15 W/m2K and a U-value of no more than 0.16 W/m2K in refurbished cases. You can read more about these changes in the Approved Document L, Conservation of fuel and power, Volume 1: Dwellings.
Guardian Warm Roof with U-Value Diagram
Through extensive product development and independent testing, we are pleased to announce that the Guardian Warm Roof System now achieves its lowest U-value yet of 0.15 W/m2K, compliant with the latest Part L building regulation changes in June 2022.
The Guardian Warm Roof is the original conservatory roof replacement system and remains the leading system to be regulation compliant for complete peace of mind.
If you're wondering what this means for your business get in touch and we'll be happy to discuss these changes further with you.
