Patent ID: 8733054
Filing Date: 2014-05-27
Classification: E04B,E04D

Abstract:
1. Functional layer of a building shell, comprising at least one film that has been applied to some parts of the building shell by at least one of spraying and painting, the film forming at least one of an air-tight and a water-tight vapor barrier film, wherein the film has been formed from a plastic material in the form of an aqueous plastic dispersion that has a content of a plastic material between 10 and 90% by weight, wherein the plastic material contains at least one rheology modifier in an amount of 0.05 to 5% by weight, relative to the total amount of the film in a wet state, a foam inhibitor in an amount of in between 0.1 and 10% relative to the total amount of all components, and additives in an amount up to 30% by weight, relative to the total amount of the film in a dry state, wherein the film has a tensile strength according to EN 13859 that is greater than 50 N/5 cm, wherein the film has an adhesive strength after 24 hours is greater than 8 N/5 m as determined by a T-peel test according to DIN 4108 on a dry base, and on a moist surface, the adhesive strength corresponds to at least 70% of the adhesive strength on the dry base and wherein the water-tightness determined according to EN 13859 as a static water column is greater than 100 mm.