This standard collects the steps to follow for the control of the insulation, and is organized into: project, installation work and finished work. This standard aims to provide procedures for project control, installation work and finished work that serve to assist the compliance of the CTE DB-HE1. These procedures can be used by prescribers or designers, control entities, insulation installers, and those responsible for building construction. This standard includes in its annexes a few checklists intended to help verify and check that insulation has been installed correctly in construction. Annex M contains a list of verification for the control of the installation of windows and glass enclosures. Note: the technical Committee CTN 85 has published the standard UNE 85219, "Windows. Installation on site", which includes specific information for the installation of windows.