Enhance the acoustic performance of existing doors

Specifically designed and manufactured by Norsound in Germany, the new NOR820 has seen a raft of improvements that make it the perfect choice for sealing existing doors.

Clever design changes to the fixing method allow for the product to be fitted to either the inward or outward face of a door in minutes, enhancing the comfort of any space whether it be an office, living area, school or hospital.

The NOR820 is a perfect retrofitting system to improve the acoustics of old buildings, as well as helping save energy & money by preventing draughts from entering and heat from escaping. Use this seal in conjunction with Norsound acoustic perimeter seals to provide the best acoustic performances possible, compliant with both Document ‘E’ and BB93.