Rigid underlays for discontinuous roofing. Definitions and characteristics Ingestion-build-266356 BS 8409 has been updated

BS 8409 has been updated to take into account the publication of BS EN 1176-10

on the basis of standardized conditions

Determination of the water-soluble potassium content

Start of new 3 year cycle

Rigid underlays for discontinuous roofing. Definitions and characteristics Ingestion-build-266356 BS 8409 has been updatedWhat is BS EN 14964 Rigid underlays for discontinuous roofing about? BS EN 14964 is one of the European standards that discuss rigid underlays for discontinuous roofing. BS EN 14964 specifies the technical requirements for factory made flat or profiled sheets (wood based, fibre cement flat sheets or corrugated bituminous sheets or other materials which can be characterised as one of these materials) that are used as underlays in pitched roof