Porotherm 20 T Profi / Profi Dryfix ground bricks are multi-purpose products. The brick is designed for plastered single-layer internal or external load-bearing masonry with specific requirements. At the same time, it is great one-step solution for the ceiling ring with labour reduced by 20%. Or it can be also used for an inner load-bearing part of layered masonry in combination with thermal insulation. Large holes in the bricks are filled with hydrophobic mineral wool. Hydrophobization ensures non-absorbency of cotton wool in bricks (water flows down it).