Webinar: HECC

This Microsoft Excel (.xlxs) 25MB download of BRANZ House Insulation Guide 6th edition is for PC users.

Updates:

• A new 'Summary' sheet has been added to the tool
• An error has been repaired where the R-value for plain slab floors was higher than it should have been when adding floor topper insulation
• Improvements to the 'Correction for reduced perimeter insulation' section of the 'Roof spaces' sheet

The guide is now in two parts:

• The tables of construction R-values for common construction options for compliance under H1/AS1 and H1/VM1 5th edition
• The accompanying House Insulation Guide text [PDF] for guidance on insulation to meet or exceed H1 AS/1 and H1/VM1 5th edition.

Over 279,000 houses were built in New Zealand in the 1970s, a time of expanding suburban development. Architectural styles developed during the 1950s and 1960s influenced mass housing, and a wide range of new materials was used. Split-level homes became common on sloping sites, and many houses included garaging for two cars, with internal access. Architect-designed houses introduced different window styles and rooflines as well as new linings and claddings.

Many houses from this era are little changed since construction. Typical renovation work includes updating kitchens and bathrooms and making improvements to energy efficiency through retrofitting thermal insulation and installing modern space heating systems.

This technical resource covers:

• exactly what defines 1970s style
• how these houses were constructed and with what materials
• modifications they may have had in the decades since they were built
• typical problems and suggested remedies.

This book also takes you through the issue of getting a consent for renovation work, looking at compliance paths and Alternative Solutions.