<br />Adjustable upstand to cover 50mm-110mm clear cavities<br />Roof pitch marks on tray upstand to give installation guidance<br />Cavity tray builds into outer leaf only to speed up installation and allowing both inner and outer leafs to be built independently if required<br />BBA approved<br />Satisfies all NHBC requirements<br />Manufactured to BS EN ISO 9001 and BS EN ISO 14001<br />Complies with all relevant Building Regulations<br />Meets all relevant British Standards">