Baumit DS26 Flex is a cement based waterproofing render, vapour permeable, flexible and frost resistant, it is suitable for application with brushes, rollers or trowels. Prices: from £78.78 + VAT per bag
Ampacoll BK 535 penetration sealing tape is a single sided, incredibly elastic adhesive tape with a split backing which allows simple, weathertight sealing of all penetrations it is suitable for internal and external use on all types of timber boards and membranes removing the need for pre-formed grommets or gaskets it is suitable for all types of masonry and in areas of high humidity. Prices: from £70.15 + VAT per roll
Styrodur XPS 2800C insulation is a waterproof, closed cell insulation board which is easy to use, cut and fix. It is suitable for all plinth and below ground insulation areas. Its surface is textured to ensure high bond strength with plinth renders.