INSULATING AND SEALING SYSTEM FOR JOINTS OF JOINERY CONSTRUCTION ELEMENTS, ESPECIALLY WINDOWS AND EXTERIOR DOORS

The invention refers to a sealing system for joints of joinery construction elements, especially windows and exit doors, which comprises two front layers, which constitute the material that sets the system and seals the insulation material. One of the front layers being the internal layer on the inside of the construction element and the other front layer being the external layer on the outside of the construction element. The external front layer contains materials such that the equivalent diffusion resistance factor (Sd) is not greater than 2 m, while the intemal front layer contains materials such that the equivalent diffusion resistance factor (Sd) is equal to or greater than 30 m, the internal front layer contains low-permeability components and the external front layer contains vapour-permeable components. 本发明涉及一种用于接合建筑构件，尤其是窗户和入户门的接缝的密封系统，包括两个前层，所述两个前层包含固定所述系统并密封隔热材料的材料。前层中的一个是位于建筑构件内部的内部层，另一个前层是位于建筑构件外部的外部层。外前层包括使得等效扩散阻力系数(Sd)不大于2m的材料，而内前层包括使得等效扩散阻力系数(Sd)等于或大于30m的材料。内前层包括低渗透性成分，而外前层包括蒸气可渗透成分。