What Will ALF3 Allow You to Do as Designer or Homeowner?

• Estimate the annual heating energy required for a residential building.
• Assess how increased insulation and double-glazing can lower heating energy requirements.
• Determine the usefulness of thermal mass to heating energy requirements.
• Describe how the building orientation will affect heating requirements.
• Provide an understanding of how heating habits will affect heating requirements.
• Consider the energy use implications in retrofit options for existing buildings.
• Estimate cost benefits of all the above features, providing the most cost-effective design or compliance solution for the building owner.

Determine a Building Performance Index (BPI), the NZS 4218 R-value requirements (Schedule Method), and the NZS 4218 overall heat loss (Calculation Method), which are three of the compliance options with the Energy Efficiency Clause H1 of the New Zealand Building Code Approved Documents.