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Wood fibre insulation has become a staple in sustainable construction – but not just because it’s a low-carbon material. At Back to Earth, we specify wood fibre time and again not for its popularity or its environmental story (though those…

Suspended timber floors are a common feature in older homes, and insulating them is often one of the most effective first steps in improving energy efficiency and occupant comfort. But while the basic process is straightforward, there are several critical…

Internal insulation is often a go-to strategy for upgrading thermal performance in older buildings—but how much is too much? The answer isn’t straightforward. It depends on wall type, location, materials, and crucially, how the insulation interacts with the building fabric.…

When upgrading the thermal performance of an existing building, U-Values are often the first metric people reach for—but what target should you be aiming for in a retrofit? The short answer is: it depends. Here’s how to navigate the regulations,…

Mind the Gap Insulation doesn’t just work because it’s there, it works because it’s continuous. Gaps, even tiny ones, can dramatically reduce thermal performance, increase moisture risk, and undermine your airtightness strategy. In both retrofit and new build contexts, overlooking…

It’s one of the first questions that comes up whenever we talk about wood fibre insulation: how does it perform in a fire? The short answer is – surprisingly well. While it’s true that wood burns, wood fibre behaves in…