The Norseal Norsound NOR710 is a high-performance acoustic and smoke perimeter door seal designed for installation around the head and jambs of timber doorsets. Its slim, self-adhesive profile makes it particularly suitable for both new installations and retrofit applications where improved acoustic and smoke sealing is required.
The NOR710 features Norseal's innovative dual air pocket design, which creates two flexible compression chambers between the door and frame. When the door closes, the seal compresses to help close the perimeter gap, reducing the transmission of airborne sound while also restricting the passage of ambient-temperature smoke.
The NOR710 is acoustically tested in accordance with BS EN ISO 10140-2 and smoke tested in accordance with BS 476-31.1. When incorporated into an appropriately designed and tested acoustic doorset, the NOR710 can contribute to acoustic performance of up to approximately 48 dB, depending on the complete door assembly, threshold sealing, perimeter gaps and associated ironmongery.
Its strong self-adhesive backing allows the seal to be surface mounted without routing or machining the door or frame, making the NOR710 an excellent option for upgrading existing doors where acoustic or smoke performance needs to be improved.
The profile has also been cycle tested to 1,000,000 opening and closing operations, making it suitable for frequently used commercial, residential, educational, healthcare, hospitality and public-building doorsets.
Key Features & Benefits
- High-performance acoustic perimeter door seal
- Provides combined acoustic and ambient-temperature smoke sealing
- Suitable for installation around the head and jambs of doorsets
- Ideal for both new doors and retrofit applications
- Innovative dual air pocket profile improves perimeter sealing
- Self-adhesive fixing for quick and straightforward installation
- Acoustically tested in accordance with BS EN ISO 10140-2
- Smoke tested in accordance with BS 476-31.1
- 1,000,000 cycle tested for long-term durability
- Slim profile minimises visual impact on the doorset
- Manufactured from flexible and rigid PVC
- Available in a choice of colours to suit different door and frame finishes
Applications
The NOR710 is suitable for acoustic and smoke-control doorsets in a wide range of buildings, including:
- Hotels and guest accommodation
- Offices and meeting rooms
- Schools, colleges and universities
- Hospitals and healthcare buildings
- Apartment and residential developments
- Public and commercial buildings
- Recording, broadcast and performance spaces
- Doors where improved privacy or noise reduction is required
For optimum acoustic performance, the NOR710 should form part of a complete acoustic sealing system, with particular attention also given to the threshold of the door, door leaf construction, frame, glazing and any other potential air paths.
Technical Information
Product: Norsound NOR710
Manufacturer: Norseal
Product Type: Acoustic and smoke perimeter door seal
Application: Head and jambs of acoustic and smoke-control doorsets
Material: Flexible and rigid PVC
Fixing: Self-adhesive
Profile Size: Approximately 10 × 10.2 mm
Standard Lengths: 2100 mm
Colours: Black, Brown, White and Grey
Acoustic Testing: BS EN ISO 10140-2
Smoke Testing: BS 476-31.1
Durability: Tested to 1,000,000 operating cycles
Installation
The NOR710 is installed around the head and vertical jambs of the door frame. The surface should be clean, dry and free from dust or contamination before the backing is removed and the seal is firmly adhered in position.
Correct positioning is important to ensure that the flexible blades compress against the door when closed without creating excessive resistance to closing. Norseal's fitting guidance indicates that the product should be fitted continuously around the head and jambs in accordance with the manufacturer's installation instructions.
Why Choose the Norseal NOR710?
Air gaps around a door can significantly reduce the acoustic performance of an otherwise well-constructed doorset. The Norsound NOR710 acoustic door seal provides a simple and effective means of sealing these perimeter gaps without the need to machine the door or frame.
Combining acoustic performance, smoke control, straightforward installation and proven durability, the NOR710 is an excellent solution for projects where improved sound insulation and perimeter sealing are required.
