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InteriorInterior

Product Advice

Accurately Describing Vapour. And Vapor...

Jon Davies looks at a confusing geographical disconnect when describing vapour control, moisture control, vapour control layers and vapour barriers. Did you know that in North American documents, the term vapour barrier might mean our vapour control layer? And if they do use ‘vapour control layer’ they could easily be talking about a vapour barrier?

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27 October 2026
24 June 2019

Conflicting Seismic and Passive Fire Requirements for Service Penetrations

apartments

A collaborative approach is needed to resolve conflicts between fire protection and seismic movement requirements for service penetrations passing through fire-rated walls.

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23 May 2019

Below-Ground Structural Design for Tanking

Volclay Voltex Allco3

Continuing from my previous blog and the question of design, I look at considerations for ensuring an effective waterproofing solution. 

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21 May 2019

Detailed Design of Passive Fire Penetration Seals

building

Lessons from the design of service penetrations through fire rated walls and floors on a recent high-density residential project. 

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21 March 2019

Designing for Steam in Modern Buildings

Steam

We pipe water inside buildings, so what happens when we turn it into steam?

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21 March 2019

What to Consider When Adding Bi-Fold Doors to Your Design

Potters Modular DS Series 8 BiFold 08

There are lots of configuration options when adding this form of an operable wall, and there are a few things to consider.

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21 March 2019

Balancing Fire Protection with Other Building Requirements

balance

We often come across situations where compliance with NZBC requirements for fire protection is in conflict with other requirements.

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21 February 2019

Fire Testing for Temporary Wall Cladding

Fire image resistance

A look at how a peel and stick weathertightness membrane performs in a fire when used as a temporary cladding.

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18 October 2018

Renovating and Insulating Masonry Walls

mockaroon account 1085248 unsplash

Why strapping and lining masonry walls on the inside is not a good idea, not for renovation, not for new builds. 

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18 October 2018

Bentonite Waterproofing and Wet/Dry Cycling

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There is no aspect of bentonite waterproofing that is as misunderstood as how it responds to wet/dry cycling.

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17 October 2018

Growing the Passive Fire Knowledge Base

Malcolm Christie Passive Fire gone wrong blog

The more the industry talks about passive fire and engages with other construction industry professionals, the more likely we are to get it right the first time.

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