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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…
Airtightness, Breathability, and Vapour Control: How to Make It All Work Together When it comes to building performance, few topics generate as much confusion—and controversy – as airtightness, breathability, and vapour control. Can you really make a building airtight an…
Solid Wall Insulation – Is External or Internal Insulation Better? When it comes to upgrading the insulation of solid-walled homes, one of the biggest decisions is whether to insulate from the outside or the inside. Both external wall insulation (EWI)…
Is Plasterboard Natural and Breathable? A Closer Look at an Overlooked Material In the world of natural and sustainable building, few materials spark as much quiet controversy as plasterboard. It’s a staple of mainstream construction, yet often maligned or dismissed…