Our Pink® Batts® ULTRA® insulation products ensure that even with 34% thermal bridging through the framing, you can meet the required H1 5th Edition Construction R-values. Learn more below.
The H1 Building Code changes only require walls to hold a construction R-value of 2.0, nationwide. However, the BRANZ Beacon Pathway report highlighted that the average amount of framing in walls was 34% and up to 55%, rather than the previously assumed 12 - 18% framing, raising an increased interest in higher R-value products for walls. With the higher than assumed thermal bridging and a code that requires construction R-values to be used, we expect the market to move quickly, using R2.8 wall batts® in 90mm framed walls to meet the intent of the code. For wall framing percentages above 25%, 140mm framing should be considered, where Comfortech® offer an R-value as high as R4.3. Alternatively, an R1.0 secondary insulation layer can be installed to the inside of the 90mm frame, between battens, to reduce the thermal bridging and deliver the required thermal performance.
Our Pink® Batts® ULTRA® insulation products with an R-value of 2.6 and 2.8 for a 90mm wall, or R3.2 to R4.3 for 140mm walls, ensure that even with 34% thermal bridging through the framing, you can meet the required H1 5th Edition Construction R-values.