We have issued a corrigendum for NCC 2022
An error has been identified in Volume One D3D28(4)(b). The text sequence for a sign for a self-closing door was altered unintentionally. The corrigendum corrects the sequence to that contained in previous NCC editions.
Further, an error has been identified in Housing Provisions 13.3.2. The formula for determining the winter conductance ratio incorrectly places the level factor (LW) in the denominator. The corrigendum corrects the formula by placing LW in the numerator.
The glazing calculator that was issued with NCC 2022 is based on the correct formula. Therefore, calculations performed using that calculator reflect the correction contained in this corrigendum.