Due to Celcon Blocks' closed cell structure they have an excellent resistance to water penetration, therefore enabling them to be used in the construction of solid external walls.
Traditionally, water penetration precluded the building of solid walls, but H+H aircrete has changed that perception. Solid walls are therefore proving to be a fast and efficient method of wall construction. This method of build also easily meets the requirements of Part C of the Building Regulations.
When being used for solid wall construction, it will be necessary to add insulation either internally or externally to achieve the required Thermal Regulations. Celcon Blocks should receive a durable permanent external finish such as render, brick slips and cladding systems; all of which can be applied with or without external insulation.