CDM Fibran XPS-500C boards are used to form a 50 mm insulated spacer adjacent to the Basedrain and Floordrain drainage channels within the cavity drain waterproofing system, where it remains dimensionally stable even when fully immersed.

The insulation boards have a heat-hardened surface to increase point load capability below-studded membranes and feature specifically designed slots to the underside of the boards, that in combination with the perimeter and spine drainage channels of cavity drain waterproofing form a fully drained supporting spacer below the floor drainage membrane.

The insulation boards can also be used as a protection for liquid waterproofing membranes applied externally to new earth-retained structures or retained walls, providing protection, insulation and drainage within one product.

Features and benefits:

Third-party tested to confirm the load capability for use below Newton studded, cavity drain membranes.
Excellent thermal insulation characteristics, with a very low coefficient of thermal conductivity.
Closed cell structure with no connecting capillaries resulting in high resistance to water absorption and diffusion of water vapour.
Capable of permanent submersion in water.
Fully inert when subjected to climatic variations.
High mechanical and compressive strength and high dimensional stability.
Does not contain CFCs, HCFCs, PBDEs, PFOA or PFCs.
Easy to transport, cut and apply.
100% recyclable.
Completely rot-proof and does not develop any mould or other efflorescence.
No nutritional value for rodents, insects, etc.
Good resistance to acids, alkalines, aggressive ground containments and inorganic gases.
Suitable substrates include compacted, clean, level surfaces, basement concrete floor slabs and rafts, earth-retained walls of concrete, mortar or insulating concrete forms (ICF) and compacted blinding.
CE marked.
Life expectancy is equivalent to the building in which it is installed (estimated at 50 years).

CDM Fibran XPS 500-C - Environmental Product Declaration (EPD)