Penetrations through existing walls
When a penetration is required through the cladding of an existing building, effective sealing and weatherproofing is more difficult than when a penetration is incorporated during construction.
This website is best viewed on a newer browser than the one you are using. Learn about upgrading your browser (opens in a new window/tab)
Welcome to BRANZ Build. Skip to main content.
Practical how-to articles for builders and designers showing good industry practice and interpretation of the NZ Building Code and standards.
Showing results 1-4 of 4
Order by:
By Alide Elkink – 1 August 2016, Build 155
When a penetration is required through the cladding of an existing building, effective sealing and weatherproofing is more difficult than when a penetration is incorporated during construction.
By Ann Galloway – 1 August 2016, Build 155
Renovations or extensions can often mean a new slab is laid abutting an old one. There’s plenty to consider before starting work to ensure the junction is weathertight, strong and Building Code compliant.
By Alide Elkink – 1 August 2016, Build 155
The BRANZ helpline often receives questions about veranda design and construction. Here, we answer some of those questions.
By Trevor Pringle – 1 August 2016, Build 155
The back of brick veneer will get wet when it rains. That’s why it’s important to design in elements such as vents and open prepends, install the veneer following the correct practices and adhere to certain tolerances.