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 Trevor Pringle – 1 June 2012, Build 130
Don’t be misled into thinking that rubber roofing membranes can do without edge detailing. It’s required in E2/AS1, and omitting it can lead to stained walls.
By Tom Edhouse – 1 June 2014, Build 142
NZS 3604:2011 Timber-framed buildings sets out how to size rafters in table 10.1. The BRANZ technical helpline has received queries on doing this, so let’s step through some examples.
By Trevor Pringle – 1 October 2017, Build 162
Benjamin Franklin said, ‘don’t throw stones at your neighbours if your own windows are glass.’ These days, all windows are glass, but there’s a swag of other considerations.
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.
1 June 2007, Build 100
Double glazing, or Insulating Glass Units (IGUs), are increasingly used in New Zealand to improve insulation. This has created a demand to upgrade existing houses.
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 Trevor Pringle – 1 June 2008, Build 106
Installing windows can be tricky, but there’s plenty you can do to make it easier.