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.
Insulation
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Steps to good insulation design
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.
Insulation of slab-on-ground floors
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?
Edge insulation of slabs
By Ian Cox-Smith – 1 December 2016, Build 157
Modelling of concrete floor slabs at BRANZ has provided insights into how to optimise the effectiveness of exterior perimeter edge insulation.
Slab edge insulation
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.
Retrofitting insulation correctly
By Tony Conder – 1 October 2009, Build 114
Major projects retrofitting insulation in older uninsulated or poorly insulated homes are currently underway. To do this right, there are installation pitfalls that need to be avoided.
Cost versus benefit of greater than Code insulation
By Ian Page – 1 August 2010, Build 119
Can going beyond the Building Code with insulation be justified financially? Some new BRANZ research aimed to find out.
Slab-edge insulation
By Trevor Pringle – 1 June 2014, Build 142
A BRANZ slab-edge insulation detail has been revised, minimising the width of the thermal break.
Retrofitting underfloor insulation
By Ann Galloway – 1 October 2016, Build 156
There’s a little breathing space, but soon, many rental properties will need to be retrofitted with underfloor insulation. Retrofitting foil insulation has been banned, so what are the options?
LCA when materials meet water
By Dr Dave Dowdell – 1 April 2017, Build 159, Feature article
Life cycle assessment is being applied to building materials as part of a major BRANZ study into the resilience of flooring and insulation materials to floods and exposure to water.
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