marcello belcastro 29/4/26 marcello belcastro 29/4/26

Subsidised Home Energy Ratings for eligible NSW households

The NSW Government is offering subsidised NatHERS Home Energy Rating assessments for NSW households. These are fully accredited NatHERS Home Energy Ratings conducted by accredited assessors.

marcello belcastro 10/2/26 marcello belcastro 10/2/26

Is your insulation budget hitting a brick wall? 🧱💸

Going from no insulation to R2.0 is a game-changer. But jumping from R5.0 to R7.0? You might be spending thousands for just a tiny 1–2% improvement in thermal performance. 📉

In a 7-star NatHERS world, it’s not about the thickest batt—it’s about the smartest build. If your windows are leaking heat or your downlights aren't sealed, high R-values won't save you.

Why More Isn't Always Better: The Law of Diminishing Returns in Insulation

marcello belcastro 9/12/25 marcello belcastro 9/12/25

Spot the differences.

Part of the job of a Thermal Performance Assessor is playing ’Spot the difference’ with a design.

marcello belcastro 15/6/25 marcello belcastro 15/6/25

An embodied energy POST

A recycled timber post