Patent ID: 8551611

Claim:
A joint seal for sealing a component joint, which comprises an insulation material in an internal joint area and a sealing material in at least a front-side joint edge area, wherein the insulation material is in a form of a single layer of polyurethane foam comprising a single-component, moisture cross-linking, elastic, predominantly closed-cell soft-cell foam having a closed cell proportion of at least 90%, and having been foamed in situ so as to have expanded in the internal joint area to contact surfaces of the joint area, wherein the sealing material comprises a sealant, which is vapor-diffusion tight, directly adjoins the insulation material, is single-component, moisture cross-linked, and sprayable before the curing, the sealing material having been cured in situ against the insulation material, and bonded directly to the polyurethane foam so as to attach components of the joint area to one another, and wherein the sealing material is a silyl-terminated polymer, and has an elasticity which is greater than that of the insulation material.