Before a start can be made on installing insulation panels, among other things, the  Cloze (1): JXUwMDJiJXUwMDA2JXUwMDE3JXUwMDExJXUwMDA3JXUwMDA2JXUwMDEzJXUwMDE1JXUwMDEx must be prepared in line with current regulations.

In addition,  Cloze (2): JXUwMDM5JXUwMDBkJXUwMDAwJXUwMDRjJXUwMDUwJXUwMDFjJXUwMDE5JXUwMDE4JXUwMDBmJXUw MDBiJXUwMDA3JXUwMDA5JXUwMDQ3JXUwMDU3JXUwMDE4JXUwMDFkJXUwMDE5 must have been completed and all  Cloze (3): JXUwMDNhJXUwMDEwJXUwMDE3JXUwMDA0JXUwMDAyJXUwMDBiJXUwMDBkJXUwMDE2 must have been made in line with the state of the art.

The substrate must be d Cloze (4): JXUwMDJhJXUwMDBi and free from d Cloze (5): JXUwMDJkJXUwMDA2JXUwMDA3 and g Cloze (6): JXUwMDJhJXUwMDE3JXUwMDA0JXUwMDEyJXUwMDE2 . It is also essential that the substrate is Cloze (7): JXUwMDMxJXUwMDA3JXUwMDFhJXUwMDE1JXUwMDAyJXUwMDE3JXUwMDU0JXUwMDA4JXUwMDRiJXUw MDBjJXUwMDA3JXUwMDBkJXUwMDE2JXUwMDFhJXUwMDFmJXUwMDEzJXUwMDRj and  Cloze (8): JXUwMDNlJXUwMDBhJXUwMDBkJXUwMDE1 .

In the case of interior insulation, any existing wallpaper, old paintwork, panels, etc. must be removed entirely. Any mouldy plaster or salt efflorescence must be tracked down and removed entirely.

The substrate is inspected  Cloze (9): JXUwMDJlJXUwMDFmJXUwMDFhJXUwMDA2JXUwMDE0JXUwMDBkJXUwMDAwJXUwMDE1 , and tested by  Cloze (10): JXUwMDJmJXUwMDFlJXUwMDE5JXUwMDE5JXUwMDA3JXUwMDA5 , scratching,  Cloze (11): JXUwMDM1JXUwMDAyJXUwMDA2JXUwMDFhJXUwMDA3JXUwMDExJXUwMDBiJXUwMDA3JXUwMDA3JXUw MDA5 and  Cloze (12): JXUwMDJjJXUwMDE1JXUwMDExJXUwMDAwJXUwMDE5JXUwMDA3JXUwMDA5 ;  Cloze (13): JXUwMDNlJXUwMDBhJXUwMDBkJXUwMDE1JXUwMDFhJXUwMDBiJXUwMDE2JXUwMDAw and  Cloze (14): JXUwMDNiJXUwMDBjJXUwMDA3JXUwMDBkJXUwMDE2JXUwMDFhJXUwMDA2JXUwMDAx are also tested.