How Much Internal Insulation Can You Add? - Can I Just Ask? | Ep.15

How Much Internal Insulation Can You Add? | Can I Just Ask? Ep.15 In this follow-up to our previous video on realistic U-value targets, we dive into one of the most common questions we hear: how much internal insulation can you actually add to a building? Whether you're working with solid brick, stone, or older mixed-construction walls, the answer isn't as simple as stacking up more layers. In this episode, we explore the practical limits of internal wall insulation - looking at what’s safe, what’s realistic, and what risks you need to consider, especially around moisture and embedded timbers. This is a must-watch if you're upgrading an older property or specifying internal insulation on a retrofit project. ▶️ Watch the U-value targets episode first if you haven’t already:    • What U-Value Should I Target For My Retrof...   🔗Read more about this on our website: https://www.backtoearth.co.uk/news/ho... #SustainableBuilding #InternalInsulation #Retrofit #MoistureRisk #WoodFibre #BuildingFabric #UValues #BackToEarth