Nosing Joint (N) - Type 3 and 4

Consists of a section of nosing material bonded to the deck of either side of the expansion gap, with a compression seal bridging the gap. The purpose of the nosing material is to support the adjacent surfacing, and provide an edge which will resist the effects of vehicle wheel loads. Movement range ± 20mm as the maximum joint gap is not permitted to exceed 65mm as per BD33/94.