---
title: What Insulation Levels Should a Modern Home Have?
description: "## Short Answer Modern homes should aim for insulation levels well above minimum building code requirements to achieve consistent comfort and improved energy efficiency. ## Overview Building code sets minimum requirements, not optimal performance. Homes designed for comfort and efficiency…"
url: "https://energyefficienthomes.co.nz/docs/what-insulation-levels-should-a-modern-home-have/"
updated: "2026-04-28"
category: "Performance-and-Building-Science"
---

# What Insulation Levels Should a Modern Home Have?

## Short Answer

Modern homes should aim for insulation levels well above minimum building code requirements to achieve consistent comfort and improved energy efficiency.

## Overview

Building code sets minimum requirements, not optimal performance. Homes designed for comfort and efficiency typically exceed these minimums significantly.

## Key Points

- Standard homes meet minimum R-values and focus on compliance.
- High-performance homes increase insulation levels, reduce heat loss more effectively, and improve overall building performance.
- Insulation matters most in walls, ceilings, and floors.
- More is not always better. Higher insulation must be balanced with airtightness, ventilation, and window performance.
- Better insulation results in reduced heating demand, more stable indoor temperatures, and increased comfort.

## Common Questions

**Can I just increase insulation and get good performance?** It helps, but works best as part of a full system.

**Is it worth upgrading insulation levels?** In most cases, yes, especially during a new build.

## Next Step

If you are planning a new home, our team can help you understand what level of performance is possible and where to focus your budget.