Abstract: A seal with a first profiled section, a second profiled section (5) housed inside a third profiled section made of an elastically deformable flexible material, the third profile section forming by itself or with the part of the first and/or the second profiled section a sealed tubular member connected to a source of fluid under pressure and adapted under the action of the fluid, to be urged into contact with the inner face of the second profiled section (5), to improve the sealing and soundproof properties of the seal when the vehicle moves at a high speed.

Abstract: The invention concerns a joint wherein inside the second extruded profile (5) and along part at least of the length thereof is housed a third extruded profile (7), with U-shaped cross-section, of reduced dimensions compared to those of the second extruded profile (5) and whereof the ends of the branches are also adjacent to the same wing or at the base of the first extruded profile (1), said third extruded profile (7) being likewise made of an elastically deformable material and being designed to counter local resistance to compressive effort exerted by the opening, while reinforcing sealing and soundproof conditions at the opening frame.