Complete Guide to Insulation
Proper insulation is crucial for energy efficiency and comfort. Whether you're insulating a loft, walls, or floor, our guide helps you choose the right material and find the best prices.
Browse Insulation
Types of Insulation
PIR (Polyisocyanurate) boards offer excellent thermal performance in thin profiles. Mineral wool (glass or rock wool) is versatile and fire-resistant. EPS (Expanded Polystyrene) is lightweight and affordable. Natural options like sheep wool and wood fibre are eco-friendly alternatives.
Choosing the Right Insulation
Consider the application (loft, wall, floor), required U-value, moisture resistance needs, and budget. Lofts typically use mineral wool rolls. Walls often use PIR boards. Floors may need rigid boards that can bear weight.
Installation Tips
Ensure no gaps in coverage. Use appropriate fixings. Consider vapour barriers in certain applications. Always follow building regulations for minimum U-values.
Helpful Calculators
Frequently Asked Questions
Mineral wool rolls (glass wool or rock wool) are most common for loft insulation. They're easy to install and cost-effective. Current building regulations recommend 270mm thickness for new builds.
For new builds, walls should achieve 0.30 W/m2K or better, roofs 0.16 W/m2K, and floors 0.25 W/m2K. Lower U-values mean better insulation.
PIR has better thermal performance per thickness (lower lambda value), making it ideal where space is limited. Mineral wool is more affordable and easier to fit around obstacles.