October 5, 2022
Specific Uw Values for Slim Sliding Doors
Written by Rebecca Clayton
October 5, 2022
Written by Rebecca Clayton
Specific Uw values for slim sliding doors are calculated on a project-by-project basis, as there are many factors such as size and glass specification that affect this.
With the updates to building regulations and the improved Uw value requirements for glazing, there is a misconception that this will mean that glazing specifications will need to change to composite systems.
This is definitely not the case. If your design calls for slim framed aluminium sliding doors this is still very possible if specified correctly.
Due to the bespoke nature of IQ’s glazing systems, many are stated as having a ‘Uw from...’ which isn’t always the most helpful, but it's all that can be given without knowing the specific glazing specification.
This article shows some of our projects where bespoke sliding doors were specified and what Uw values that specific installation achieved to help give an idea of what is possible.
This is calculated using the thermal performance of the glass (Ug), the framework (Uf) and the glazing spacer (PSIG), along with the sizes of the opening, opening configurations and framing design, to give you an overall Uw value.
The new limiting standard for glazed windows and doors is Uw 1.6 W/m2K for new dwellings, Uw 1.4 W/m2K for extensions to existing dwellings and Uw 1.6 W/m2K on buildings other than dwellings.
These figures are very possible to achieve and surpass with the minimal windows sliding door systems and structural glazing. We work on many projects where architects are creating a sustainable or low carbon build with these systems.
IQ's slim sliding doors are manufactured with a polyamide thermal break and a low e coating as standard, enabling them to achieve high thermal performance values without having to compromise on a modern and minimal design.
minimal windows Sliding Doors were specified with Uw values 1.38 – 1.55 W/m2K, double glazed.
A rear extension in London with bespoke structural glazing and double-glazed minimal windows® Sliding Doors. The thermally broken aluminium sliding doors achieve a Uw value of 1.29 W/m2K.
To surpass the thermal insulation requirements of the UK building regulations, the triple glazed version of minimal windows (minimal windows 4+) offers a Uw value from 0.8 W/m2K, making the system an ideal choice for projects looking to exceed the requirements.
This help to maintain a comfortable temperature in the new internal space all year round.
This includes specifying thermally efficient glazing and looking at factors such as low Uw values for slim sliding doors. On the other hand, specifying glazing with a solar control coating can help to prevent overheating in internal living spaces during the warmer months.
IQ are always looking to push the boundaries of modern architectural glazing, and there are ways to improve the Uw value of sliding doors such as specifying triple glazing. Our sliding door systems all use thermally broken profiles, which are made from 70% recycled aluminium, and are manufactured with a low e coating as standard.
To discuss specific Uw values for slim sliding doors, contact the IQ team today.