Floors

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Inter-tenancy floors in MDH

By Guy Marriage 1 December 2022, Build 193

Part 2 of this Build series on designing and building medium-density housing covers inter-tenancy floors. The most important consideration here is to eliminate penetrations into the inter-tenancy floor zone.

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Clarifying insulation changes

By Andrew Bedford 1 October 2022, Build 192

From 1 May 2023, housing and small buildings up to 300 m² will need to be better insulated. What does this mean in practice for wall, underfloor and ceiling insulation of these buildings when using the schedule method for compliance?

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E3/AS1 and wet area flooring

By Bruce Sedcole 1 October 2021, Build 186

From 4 November 2021, there will no longer be an Acceptable Solution in Building Code clause E3 Internal moisture for using timber or timber based products as linings and finishes to floors in wet areas. However, an Alternative Solution designed and specified to best practice is easy to do.

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R-values in new floor details

By Ian Cox-Smith 1 August 2021, Build 185, Feature article

The recently released draft of PHINZ High-performance Construction Details Handbook requires some explanation for floor elements as the R-values it uses are different to those most designers will be familiar with.

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Tolerances tables

By Bruce Sedcole 1 June 2021, Build 184

In Build 156 Tolerances tables, we outlined some of the allowable construction tolerances for a quality result. We have now revisited this information and added some more for plasterboard and fibrous plaster, an area that can cause disagreements between contractors and clients.

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Why is my floor cupping?

By David Hayward 1 December 2020, Build 181

There can be several reasons why a solid timber strip floor may take on a cupped appearance where the board edges are higher than the centre of the board. This case study goes through the process of investigating why a floor cupped and how to fix it.

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