NCC 2025 Garage Door Insulation Requirements: Why System R-Values Matter More Than Ever

The National Construction Code (NCC) 2025 preview was released on February 1, 2026, with formal adoption beginning May 1, 2026. For homeowners, builders, and energy assessors working towards 7-star NatHERS compliance, understanding how NCC 2025 affects garage door insulation is critical. The key change? A stronger emphasis on system R-values rather than material R-values alone. This […]
What is the R-Value of a Garage Door? (And Why It Starts at Zero)

A standard garage door has an R-value of zero (R0.0). That means it provides no resistance to heat and cold transfer – it’s like leaving a very large window wide open to the elements all year round. Considering that a garage door can take up to a third of your home’s front façade, leaving it […]
Insulated Garage Doors: Why R-Values Matter More Than “Temperature Drop” Claims

When you’re looking at buying a new garage door or upgrading your existing one, insulation often comes up in the conversation. Many companies advertise their product with flashy promises like: “Your garage will be 13 – 17°C cooler!” But here’s the catch: those claims are misleading. At ThermaDoor, we don’t guess at how many degrees […]
Fire Rating and Garage Door Insulation Explained – Safe, Compliant and Fire-Retardant

When it comes to building safety, one of the technical questions we’re often asked is about the fire rating of garage door insulation. People want to know whether products like ThermaDoor Premium need to carry a formal fire rating. The important point is this: garage door insulation does not need a fire rating — but […]
Best Garage Door Insulation R-Value in Australia (Explained)

The best garage door insulation R-value in Australia is the assembly-calculated, dual-season R-value, not a standalone or material number. Under Australian Standards AS/NZS 4859.1 & 4859.2:2018, you should see separate Winter (15 °C) and Summer (30 °C) results. ThermaDoor’s verified assembly values are R1.43 (winter) / R1.39 (summer). Most companies selling various insulation materials as […]