Airtightness and the building envelope

Learn how airtightness and the building envelope work together to reduce energy loss, control moisture, and improve comfort

Airtightness and H1: A Simple Fix to Reduce Compliance Costs

Clause D.1.13.1 is holding back smarter, more affordable buildings in New Zealand. Learn how allowing airtightness modelling could rebalance H1.

One Tree Hill College Redefines Trades Education

One Tree Hill College is redefining trades education through a unique hands-on project where students are renovating a 1970s state house purchased for $1.

Airtight Retrofit Solutions: Transforming Old Homes Without the High Costs

Transforming Old Homes Without the High Costs: New Zealand’s older homes represent a major opportunity to improve energy efficiency, health, and durability.

Aero Barrier Technical Data Sheet

This document is a technical data sheet for the AeroBarrier air sealing system, detailing its purpose, application, compliance with New Zealand Building Code, material specifications, design considerations, and installation process. It describes AeroBarrier as a non-toxic, low-VOC, automated sealing solution that improves airtightness in buildings.

Aero Barrier X1 Datasheet and SDS

This document provides the technical and safety data for AeroBarrier X1, a waterborne, aerosol-applied acrylic sealant used in the AeroBarrier air sealing system. It outlines the sealant’s properties, benefits, usage guidelines, industry certifications, and safety precautions, emphasizing its low toxicity, VOC-free formulation, and suitability for improving building airtightness and indoor air quality.

Case Study | Transforming An Old Cold House into Warm Desirable Home

How Adding Airtightness and Ventilation Unlocked a Warmer, Healthier, and More Energy-Efficient Home

NZ houses are notoriously cold, damp and unhealthy

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.

Airtightness: The Key to a Warmer, Healthier Home

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.

Energy-Efficient Homes Sell Faster

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.