OSB Loft Boards - 1220mm x 320mm x 18mm (Pack of 4) | insulationuk.co.uk
2 x BMD Cral High Performance Adhesive Tape (Yellow, 50 mm x 40 linear metres) for Bonding Vapour Barrier Film in accordance with DIN Standard 4108 Part 7 OSB Adhesive Tape : Amazon.de: DIY & Tools