Insulating slab-on-ground floors
Current methods for adding insulation to slab-on-ground floors have some disadvantages. However, recent BRANZ research has developed more effective methods.
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Practical how-to articles for builders and designers showing good industry practice and interpretation of the NZ Building Code and standards.
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By Ian Cox-Smith – 1 June 2007, Build 100
Current methods for adding insulation to slab-on-ground floors have some disadvantages. However, recent BRANZ research has developed more effective methods.
By Michael Camilleri – 1 April 2008, Build 105
When it comes to insulation, designers should think optimum rather than minimum and make key decisions early in the design process.
By Ian Cox-Smith – 1 December 2008, Build 109
Understanding how to maximise the insulation of a slab-on-ground floor is an important step to designing an energy-efficient building. So, where is the main heat loss, and how is a slab best insulated?
By Bruce Sedcole – 1 June 2023, Build 196
May Day, 1 May 2023, saw most of the recent new h1 updates move from their transition phase to become the sole h1 Acceptable Solution compliance paths available to architects and designers of all our housing and buildings up to 300 m².
By Ian Cox-Smith – 1 February 2008, Build 104
Reflective foil insulation products are commonly labelled with a component R-value. This does not signify performance, and should not be confused with the R-values for bulk insulation products.
By Jonquil Brooks – 1 April 2022, Build 189
BRANZ is currently updating the House insulation guide to align with the new requirements of the 5th edition of Building Code clause H1 Energy efficiency.
By Tony Conder – 1 October 2009, Build 114
The choice of downlight fittings cannot be left to the owner, particularly in wet areas or those that form part of the thermal envelope. The type of downlight must be specified when a building consent is applied for.
By Alide Elkink – 1 December 2019, Build 175
Tricky access can be a problem when retrofitting insulation into an older home. However, as the push continues to insulate homes, we look at some of the options and things to consider.
By Greg Burn – 1 June 2020, Build 178
Significant performance improvements can be achieved affordably in houses by designing above the New Zealand Building Code minimum requirements. So, where is a good place to start to improve the liveability of a house?
By Greg Burn – 1 June 2022, Build 190
BRANZ modelling identified six areas for designers to focus on to reduce the carbon footprint of a new build. In the first of this series, we look at the practical considerations for designers using rule of thumb 1 Increase construction R-values.