U values for windows and doors on new build

[Caroline]

Hello everyone

 

I have searched the planning portal and can't find what the requirements are for U values for newbuild windows and doors.  Can anyone direct me or help please?

 

Thank you.

Caroline

[G and J]

Do a google (or equiv) search for "building regs u values for new builds" and you'll get lots of choice

 

Eg. 

 

2025 U-values includin0.18 W/m²K for walls, 0.13 W/m²K for floors, and 0.11 W/m²K for roofs. Windows and doors have a target U-value of 1.2 W/m²K, while the maximum allowable U-value for these elements is 1.6 W/m²K. These U-values are part of a 'notional building' specification and require the use of energy modelling software to demonstrate compliance, which also considers other factors like air permeability and heating systems.