Technical Advice | Sliding Glass Doors

Sliding Glass Doors: The Engineering

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Rebecca Clayton

Written by Rebecca Clayton

Edited by Dan Finnegan

Fact-checked by Michal Piekarewicz

Aug 19, 2026

Last verified: Aug 19, 2026

Next review: Aug 19, 2026

Our Editorial Process - How We Write Our Technical Advice Articles

01

We pick topics from real questions we hear or see being asked

We do not make up topics just to get clicks. Our topics come from the questions people really ask us. Architects ask us when they plan a building. Builders ask us on-site. Homeowners ask us when they plan their project. If the same question keeps coming up, we write about it.

02

One of our internal experts writes the first draft

The first draft is written by someone who works with that glazing system. This might be a technical advisor, a designer, or a product expert.

They write using three things, in this order. First, our own finished projects and what we learned from them. Second, the building rules and the glass standards that apply. Third, the maker's technical data for the system we supply. When we give a number or a limit, we say where it comes from. We name the rule or standard and link to the official source so you can check it yourself.

03

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Before any article goes live, a second qualified person reads it. They check three things. That the facts are right and not made too simple. That any rule or standard we mention is current and stated correctly. That the advice matches how the work is really done on site.

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Base Track and Sliding Rail

Running underneath the whole of the sliding system is a solid neoprene block. There are many reasons why the system has been engineered this way: It gives a very good thermal break between the internal and external floor finishes and it provides a robust, continuous and solid base for IQ Glass to fit their glass to. This means that there are no dips or undulations in the sliding track over time meaning a higher longevity or use for the system.

Made of stainless steel, the rail is curved based on a railway track principle meaning that you get minimal friction across the sliding motion.

The sliding door system also comes with the option for an integral slot drain. This drainage solution sits neatly under the external floor finish. Any water runoff from the sliding panes will drain through the base track and onto the neoprene base which has built in water run-off grooves. This will drain any water away from the system and internal spaces into the drainage available.

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Locking and Ventilation

Locking in a minimal framed system such as Sliding Glass Doors can sometimes be quite difficult to engineer due to the lack of framework available. The Sliding Glass Door system is engineered to solve this problem with their integrated two point lock. From the inside, the lock consists of a discreet handle that when turned, sends shoot bolts to fit into the ceiling and floor securing the system in place.

After installing large, mostly unframed sections of sliding glass it seems a waste to stick trickle vents along the top of the system. With Sliding Glass Doors you can use a system called 'Slot Aeration' whereby you can lock the Sliding Glass Door into one of three locking positions either allowing you to lock the system, give a 20mm ventilation gap or a 40mm ventilation gap.

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Sliding Glass Doors Technical

Sliding Glass Doors - Technical

  • Download the Sliding Glass Doors Technical Manual to access all the downloadable section details in CAD form.

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