Thermafleece CosyWool Slab A versatile insulation, manufactured in Yorkshire and rich in British sheep’s wool. CosyWool Slabs are flexible, denser than rolls, & designed to tightly friction fit in walls & roofs. Product Information Factsheet Thermafleece EPD CosyWool DOP Technical Data Application Notes Walls Cold Roof Floors Warm Roof Artwork and Application Photographs CosyWool slab Logo CosyWool Slab & Logo CosyWool Slab