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slim sliding doors on wood cabin

Slim Framed Sliding Glass Doors

The ah!38 20mm sightline slim sliding door is the architect’s favourite thanks to its balanced combination of extremely minimal detailing, thermal and acoustic performance.

It is an exceptionally versatile and flexible system, offering a modular composition of openings including opening corners, pocket sliding doors and curved sliding doors.

Additional opening formats allow you to maintain a cohesive design through all glazing with vertical sliding sash windows, pivot openings and tilt and turn windows all part of the same ah!38 system family.

With minimalism at its heart, the ah!38 sliding door is the epitome of a slim exterior opening system with only 20mm sightlines. The advanced combination of insulated aluminium and high specification structural glass allow us to maximise glass surfaces, resulting in a design of transparency and immateriality which are key aspects of modern architecture.

Through modern architecture, windows have ceased to be simple, functional openings in a wall. Instead, they have become a complex yet key part of an architect’s proposal which can move up or down in the context of the house, extend as far as the ceiling and shape a space.

The ah!38 slim sliding door is designed with an architect’s requirement for flexibility and collaboration in mind. By pushing the boundaries of glass technology huge glass elevations of 6m tall are easily possible with taller sliding doors possible on investigation.

Floor-to-Ceiling Sliding Glass Doors

Sliding actions are effortless with the ah!38. Stainless steel sliding mechanisms partnered with swiss engineering allow the double glazed slim slider to be installed at weights of up to 1000kg per unit. With large moving glass units the distinction between inside and outside is eliminated, creating a union of living spaces for a modern architectural house project.

Flush thresholds further continue that illusion of connectivity. Floor finishes can flow seamlessly from inside to out with the Invisible track system from panoramah.

In wet weather environments such as the UK water tightness is extremely important. All drainage is integrated into the base system of the ah!38 sliding door with a range of solutions possible. The system is fully tested for weather resistance including wind and driving rain.  

All aluminium framing is finished to the highest specification in accordance with the Qualicoat directives. Any framing finish is possible. You can select any RAL colour from the RAL colour chart for PPC or choose from a range of specialist finishes. The ah!NM solution also allows you to create these slim sliding doors in architectural metals such as stainless steel or architectural bronze.

slim sliding doors by pool

BBC World's Most Extraordinary Homes

The Wall House in Portugal was featured on the BBC program ‘World’s Most Extraordinary Homes’ which explored some of the worl’ds most advanced architectural designs.

Panoramah! ah!38 sliding doors and vertical sliding sash windows were included in this daring architectural design (which also featured an impressive glass bottomed swimming pool!).

The minimally framed sliders allowed the architects (Guedes Cruz Architects) to overcome the physical barriers of structure and combine the internal and external spaces.

In particular, the impressive vertically sliding sash windows with exposed external counterweights were a great feat of engineering by the team at panoramah! showcasing what is possible with the glazier and architect work together.

Similar designs are possible for your own architectural design with expert help from the team at IQ. We are able to help engineer glazing solutions, not just sell products.


ultra tall sliding doors

Maximum Sizes of Sliding Doors

The ah!38 surpasses the competition with its impressive maximum sizes.

Without compromising on weather tightness, performance, or ease of opening the system is able to push the boundaries of what is possible for an opening glass wall.

The double-glazed sliding panes can be installed at weights of up to 1000kg. Fully integrated automation is recommended for sliding units that weight more than 800kg. This equates to a maximum surface area per pane of 19m2 for a double-glazed installation or 6m2 for a triple glazed installation.

Floor to ceiling glass walls can be created with the sliding system available in heights of up to 6000mm. Taller installations than this have been achieved and can be investigated for you on a project by project basis.

Each sliding pane can also be up to 6000mm wide.

But the ah!38 system is not simply a product. It is a solution that can be tailored to your project requirements. Much larger, wider, taller and complex openings can be realised. 

Threshold Details of Sliding Doors

The standard base detail is flush and frameless, resulting in a clear glass elevation spanning from floor to ceiling. Drainage is fully integrated into the base frame with additional drainage details suitable for high rainfall areas.

Taking the connectivity of spaces even further is the panoramah! invisible frame system. It allows completely emphasis of the minimalism of the system by concealing the outer frame. This can be done solely at the base – for an invisible base track – or on all outer edges of the sliding door.

This solution creates a threshold-free and frame free transition between inside and out. The building finishes can be brought over the outer profiles which combines the environments of inside and out into one useable space.

Base systems are possible for drive on loads with the introduction of a durable stainless steel base track. Speak to us for more details. 

large sliding doors to living room
open corner sliding doors with sea view

Engineered Performance

The beautiful aesthetics and minimalism of the ah!38 cannot function alone. It must be paired with precise swiss engineering and enhanced performance to become an integral part of a modern building envelope today.

Using double glazing with a thermally broken frame allows high levels of thermal insulation. Uw values of 1.165 W/m2K are achievable.

Weather tightness is also guaranteed with tests for air permeability (class 4), wind resistance (class C5) and water tightness (Class E900).

Sound insulation has also been tested with a result of 41dB.

If higher levels of wind resistance are required on the project the ah!HVHZ sliding system offers hurricane level wind resistance with sightlines of just 32mm.

If improved thermal or acoustic performance is required the ah!60 slim sliding system has an increased acoustic reduction at 44 dB and Uw values from 0.8 W/m2K, all whilst maintaining the 20mm sightline.


Minimal Sliding Systems

The ah!38 slim sliding door is inherently flexible with a combinable range of sliding solutions available. The standard sliding solution is available as a linear slider with unending possibilities of opening configurations. It can also be created as a pocket slider, an opening corner or Juliet balcony.

Curved sliders are also possible on a birail system.

Additional functionality can be achieved through the exploration of the systems alternative configurations.

Large vertical sliding sash windows create floor to ceiling openings in gravity defying designs.  

Pivot openings and tilt and turn solutions are also possible from the same framing system, providing a full range of products mirroring the same minimalist ethos.

curved sliding glass wall in london
sliding doors with invisible base track

Glass Specification in Sliding Doors

Each slim framed sliding pane can hold a glass unit of up to 38mm deep. This allows for most glass configurations in a double glazed unit. Triple glazing is also possible at smaller sizes.

Any number of additional glass coatings or options can be integrated into the slim sliding door system to offer optimal performance tailored to your project requirements.

Options such as solar control coatings are popular as well as low maintenance coatings for projects in marine environments.

More technical glass solutions such as heated glass can also be integrated into the sliding door system with a range of pre-designed details.

If you have a specific requirement for your glass specification speak to the team at IQ who can provide expert advice about what is possible and feasible.

ASK US ABOUT OUR panoramah! ah!38 slim sliding doors



panoramah! Brochure


Ah!38 Product Data Sheet

Ah! Locking System Data Sheet

Insect Screen Data Sheet


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