Over 96% of NZ homes fall below safe indoor temperatures. It’s not just about insulation – airtightness is the key to healthier, warmer living. Learn what’s really going wrong and how to fix it.
Discover why airtightness is key to warmer, healthier New Zealand homes. Backing John Tookey’s expert advice, we explain how reducing air leakage improves comfort, lowers energy use, and stops heat loss.
Discover why energy-efficient homes are in high demand. New data shows they sell quicker and fetch an average of $118,000 more. Learn what’s driving buyer interest in 2025.
Research shows airtightness has a greater impact on a home’s energy use than any other single factor. If you want a home that performs well year-round, start with airtightness.
According to ENERGY STAR®, the U.S. Environmental Protection Agency’s trusted energy efficiency program, air leakage can account for 25–40% of the energy used for heating and cooling in a typical home. Air leakage doesn’t just waste energy—it also reduces indoor comfort, allows in moisture, dust, and pollutants, and increases the risk of mould and structural damage.
Auckland’s Respond Architects client wanted to achieve Passive Home standards and certification for a multi-dwelling residential building development using Aero.
Air tightness test report and Durability statement conducted found that the AeroBarrier Airsealing system maintained an excellent level of airtightness over nearly four years, with only a minor increase in air leakage.
“The end result was exactly what it was meant to be, which is always a great result for any builder,” says Ben. “Our pilot house reduced to an ACH of 0.85 which is an impressive outcome, especially given the ease of installation.
Discover how AeroBarrier enables exceptional air tightness, making high-performance living accessible to all. Learn how Lyndhurst St Townhouses achieved Homestar 6 with ease and reduced energy demand by up to 22%.
Stage 1. Initial airtightness testing.
One Tree Hill College is undertaking a deep retrofit of an ex-state house from Māngere East where Kāinga Ora - Home and Communities are doing a major redevelopment programme. The One Tree Hill College Trade Academy is working in partnership with Kāinga Ora to upgrade this house into a healthy, dry, home while preparing our pre-trade students for building apprenticeships.
