Bank Barn is a sensitive example of frameless glazing in Cumbria, delivered as part of the conversion of a traditional stone field barn into a carefully considered contemporary home. Thought to date back to the eighteenth century, the Grade II listed building retains much of its original stone fabric and required a restrained glazing approach that would improve light, views and performance without compromising the agricultural character of the barn. The IQ Glass Northern team supplied a bespoke glazing package that included minimal windows® sliding doors, a frameless Invisio® structural glass window, plus slim aluminium casement door and windows.
Project Partners
Architect: Gagarin Studio
Contractor: Duckett Building Services
Photography: Gagarin Studio
Location
Cumbria
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Reimagining a Listed Field Barn with Frameless Glazing
The architectural approach focused on retaining the barn’s original external character while creating a more open, light filled interior. The host building was treated as a historic stone envelope, with new interventions inserted carefully within the existing structure rather than altering the appearance of the barn. This allowed the building to remain legible as a modest agricultural structure while providing the comfort, insulation and spatial quality required for contemporary living.
For architects and private clients considering frameless glazing in Cumbria, Bank Barn demonstrates how minimal glazing can be used in listed and rural buildings where restraint is essential. Instead of creating new openings, the design worked with the existing pattern of apertures, drawing daylight and views through the plan while preserving the historic stonework.
Preserving Fragile Historic Stonework and Existing Openings
One of the main challenges was the structural delicacy of the original barn. The existing brickwork and masonry were fragile, which meant that all glazing systems had to be installed within the building envelope. External fixings and unnecessary alterations were not appropriate due to the conservation constraints and the need to protect the historic fabric.
This meant the glazing package needed to deliver modern usability and thermal performance while remaining visually quiet. Every element had to sit within the existing apertures or work with the original structure, allowing the barn’s architectural character to remain the dominant feature.
Installing Heavy Glazing Without Mechanical Lifting Access
A second challenge came from the restricted site access. The project could not rely on lifting equipment, so each glass unit had to be moved and installed manually by an experienced team working in confined conditions. This was particularly demanding because some of the larger glazing units weighed well over 180kg, with the largest sliding door pane weighing over 200kg.
The installation therefore required careful planning, skilled handling and precise coordination on site. In a listed barn conversion, where damaging the historic fabric was not an option, the glazing installation had to be controlled and accurate from the outset.
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Minimal Sliding Doors and Frameless Structural Glass for a Light Filled Barn
IQ Glass supplied two triple glazed minimal windows® 4+ sliding door systems on the north elevation, each configured with one fixed pane and one sliding pane on a two-track system. The largest system reached over 3 metres high, with slim aluminium profiles, a silver anodised finish and a flush threshold base frame helping the glazing sit discreetly within the original barn openings.
The larger sliding door was aligned with a frameless Invisio® structural glass window on the opposite elevation, creating a direct sightline through the building. This fixed pane overlaps the external wall, allowing the original stonework to remain visible internally while demonstrating how frameless glazing in Cumbria can introduce a contemporary architectural detail without overpowering a listed rural structure.
To complete the package, IQ Glass supplied a Sieger Legacy aluminium casement door with a fixed sidelight, plus two casement escape windows, all with a silver anodised finish to match the wider glazing package. These elements bring daylight, views and modern functionality into the barn while respecting its historic openings.
Technical Glazing Summary
- Two minimal windows® 4+ two-track sliding door systems, each with one fixed pane and one sliding pane.
- Largest sliding door system over 3 metres high, with approximate glass pane weight of 216kg.
- 52mm triple glazed units with clear toughened safety glass.
- Heat soak testing applied to the largest sliding door system glass.
- Minimal 26mm vertical profile to the sliding door systems.
- Frameless Invisio® structural glass window on the south elevation, 2640mm x 1700mm, with approximate weight of 188kg.
- Sieger Legacy casement door system with single door and fixed sidelight.
- Two Sieger Legacy aluminium framed fire escape casement windows.
- Silver anodised frame finish used across the glazing package.
Speak to IQ Glass About Frameless Glazing in Cumbria
Bank Barn demonstrates how frameless glazing can enhance a listed rural building while preserving the character of the original structure. Through careful detailing, minimal framing and sensitive installation, IQ Glass helped introduce light, views and modern performance into a historic barn without compromising its architectural integrity.
If you are planning a listed building conversion, rural renovation or heritage sensitive project involving frameless glazing in Cumbria, speak to IQ Glass at an early stage. Our team can advise on feasibility, glazing specification, fixing strategy and installation planning for complex architectural glazing projects.
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