---
title: Why Thermal Bridging Is a Problem in Many Homes
description: "## Short Answer Thermal bridging occurs when heat escapes through structural elements, reducing insulation performance and causing cold spots inside the home. ## Overview Even with good insulation, a home can still lose heat through weak points in the structure.…"
url: "https://energyefficienthomes.co.nz/docs/why-thermal-bridging-is-a-problem-in-many-homes/"
updated: "2026-04-28"
category: "Performance-and-Building-Science"
---

# Why Thermal Bridging Is a Problem in Many Homes

## Short Answer

Thermal bridging occurs when heat escapes through structural elements, reducing insulation performance and causing cold spots inside the home.

## Overview

Even with good insulation, a home can still lose heat through weak points in the structure. These weak points are known as thermal bridges.

## Key Points

- Thermal bridging happens around wall framing, window junctions, floor and slab edges, and roof connections.
- It causes heat loss, cold internal surfaces, condensation, and reduced comfort.
- Standard construction methods do not always address thermal bridging effectively, so performance is often compromised even in new homes.
- Reducing thermal bridging improves insulation performance, increases comfort, and reduces condensation risk.

## Common Questions

**Can it be completely eliminated?** It can be significantly reduced with good design.

**Is it important in NZ?** Yes, especially in colder climates like Canterbury.

## 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.