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Metal Technology are delighted to announce the launch of their new 5-35D Hi/Hi+ Commercial Door System. Part of our ThermAL range, the 5-35DHi/Hi+ is a landmark development within the thermally efficient commercial aluminium door market and marks a major leap forward in thermal design and technology. The 5-35D Hi+ Door System has been certified by the Passive House Institute, complementing our System 17 Hi+ Curtain Walling and System 5-45 Hi+ Window as Certified Solutions.

In addition to providing outstanding thermal performance, the door also achieves incredibly low air permeability performance figures, a further significant requirement in meeting the Passive House door, and whole building, performance criteria, while still complying with Document M disabled access legislation and achieving PAS 24 security required for Secured By Design projects.

Bespoke 35mm twin wall thermal break profiles, incorporating integral cavities, have been designed to minimize conduction heat transfer across the Hi door profiles. The Hi+ option utilises additional insulation, thermal foams and gaskets to further reduce radiation heat loss across the critical air cavities within the system. The choice of Hi or Hi+ configurations offer fabricators the optimum choice of cost v’s performance, when combined with their glass unit selection, in meeting individual project u-value specifications, including Passive House.

Hi+ configurations for single and double doors achieve overall U values below 1.2 W/m2k with double glazing units and .8 W/m2k with triple glazed units offering one of the most thermally efficient aluminium doors on the market.

As well as focusing on the door’s performance, significant time, effort and investment was made to make the doors easier, more efficient and faster to fabricate. The introduction of a range of bespoke moulded components has negated the need for any end milling of the outer frame or sash profiles, which are simply square, or mitre cut. A series of jigs and tooling helps the efficiency and accuracy of prepping the doors for the various ironmongery components required.

The 5-35D door system is launched with multipoint manual locking, shoot bolts, panic exit mechanisms, 3D adjustable hinges, door closers, handles and key cylinders, as well as additional components and security components. Work is currently ongoing to develop further ironmongery options for introduction over the coming months.

For further detail, view our System 5-35D Hi/Hi+ product page and product brochure.