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Our mullion drained curtain wall system is tested to all the latest BS, EN and CWCT standards. MU800Hi is available in a wide range of mullion and transom combinations offering greater design flexibility while ensuring structural integrity. The system can be zone drained through the use of our unique engineered products which is particularly suited for high-rise applications.

Glazing options for MU800Hi range from 28 to 54 mm in depth which greatly enhances the thermal performance of a façade.

The MU800 Hi curtain walling system is suitable for both vertical and sloped glazing applications and is designed to exceed the latest thermal and structural requirements of the building regulations.

It is designed to exacting standards ensuring quality, strength and durability providing for many years of aesthetic, sustainable and trouble-free performance. The clever design allows for seamless integration of all our window and door systems.

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  • Flexibility in deign with extensive range of capping options
  • Various profile strength for high rise and low-level applications. Mullion size Ix values ranging from 54 cm^4 up to 3771 cm^4
  • Fully compatible with TS66, XT66 and XTC66 windows and doors
  • Ease of fabrication and installation with the latest manufacturing techniques
  • Bespoke design with in-house extrusion and design facilities
  • Slim 55 m sightline throughout the curtain wall suite of profiles
  • Full range of RAL and specialised finishes as standard
  • 'Qualicoat' certified paint - Qualicoat Certificate
  • Powder Coating available - Valspar, Axalta, InterponTiger & IGP
  • Anodic finishes available
  • Project specific guarantees on request
  • 'Decoral' finishes - Please refer to AMS Technical Department as to the suitability of finish for exterior application. Colours may vary per batch and vary to the colours shown in the colour wheel below








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  • Tested to CWCT standards, sequence B
  • Air Classification – A4: 600 Pa
  • Water Tightness, static – R7: 600 Pa
  • Wind Resistance, serviceability – 2400 Pa
  • Water Tightness, dynamic – Pass
  • Water tightness hose test - Pass
  • Impact resistance - Class 5


At AMS we can help you bring your design to life with our wide range of paint colours and finishes. We offer a varied choice of architectural polyester powder coated finishes, including dual colour as standard, that are guaranteed through the `Qualicoat' approved applicator scheme, of which AMS is a continuing member.

All polyester powder coating is carried out in-house on a state-of-the-art vertical paint line. Our eight stage chromate free pre-treatment process meets all of the latest environmental legislation and ensures a quality finish and service every time.

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  • MU800 Hi Brochure Click HERE
  • SpecifiedBy Click HERE
  • AMS Member Area Click HERE
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At AMS we are always committed to producing systems that are sustainable, high performing with long design life therefore minimising impact on the environment.

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