Lattice Elongated Roof Lantern — 1800 × 3000

At three metres in length, the SmartaView Lattice 1800 × 3000 is the largest elongated lantern in the Apex Collection — designed for expansive spaces where the roof lantern becomes a defining architectural feature rather than just a source of light.

At this scale, the structured grid pattern is essential. It introduces rhythm, proportion, and visual control across the span — transforming a large glazed opening into something ordered, balanced, and intentionally designed.

The Infinity S1 system provides the structural capability to achieve this size without compromise, maintaining clean lines without the need for intrusive tie bars. Thermlock® technology ensures the thermal performance matches the ambition of the design — delivering comfort alongside visual impact.

Manufactured using the Infinity S1 aluminium system with Thermlock® multi-chamber thermal technology and high-performance 28mm toughened safety glazing, the Lattice is a premium choice for extensions, kitchen builds, orangeries, and contemporary architectural projects.

Key Features & Benefits

Thermlock® Thermal Technology
Multi-chamber thermal break with 28mm glazing delivers a centre pane U-value of 1.0 W/(m²K) — far superior to traditional 24mm polyamide systems. Keeps your home warm and energy bills low.

50mm Ultra-Slim Sightlines
Consistent 50mm rafter, hip, and ridge sightlines maximise the glass area, flooding your space with natural light while keeping the frame minimal.

Ultra-Low-Line External Profile
Rafter and hip top caps sit close to the glazing level, and corner end caps run perfectly in line with the perimeter — no unsightly angles, just clean contemporary lines.

Built-In Security Specification
Anti-tamper screws, enclosed anti-tamper glazing, security tape, patent-pending glass lock, and high-security ridge end. Laminate glass upgrade available.

Integral LED Light Channel
Built into the eaves beam perimeter as standard — add subtle mood lighting for a premium finish after dark.

Co-Extruded Perimeter Seal
Eliminates draughts and rain ingress for complete weather protection.

Toughened Safety Glass
28mm argon-gas-filled toughened safety glazing, BSEN1279 compliant, with double or triple glazed options.

Fast, Straightforward Installation
Delivered in kit form with all components checked and quality controlled. Comprehensive installation guide included.

Ideal Applications

Substantial open-plan spaces
Large rear extensions
Grand kitchen-diners
Orangeries
Commercial interiors

Glass & Finish Options

Clear glazing for maximum light
Solar control glazing for improved heat management
Satin (privacy) glazing for overlooked spaces
Self-cleaning and acoustic glass available on request

Standard frame colours:
Pure White (RAL 9010)
Anthracite Grey (RAL 7016)
Jet Black (RAL 9005)

Bespoke RAL colours available (matt, satin, or gloss finishes)
Dual colour option — different interior and exterior frame colours

(Options and lead times vary — speak to a SmartaView expert for advice.)

Built for Confidence

Every SmartaView roof lantern is built on the Infinity S1 aluminium system — proudly designed and manufactured in Britain.

Weather tested to BS6375-1, rated for a snow load of 1.2 kN/m² across the whole of the UK up to 200m altitude, and set at a 25° pitch.

Supplied with a manufacturer’s guarantee, each system is carefully specified and quality checked. Our team ensures full compatibility and clarity — so there are no surprises on site.

Need Help or a Bespoke Size?

If this standard size doesn’t suit your project, SmartaView can help with bespoke roof lantern specifications, glazing advice, and full project support.

👉 Speak to a SmartaView expert
👉 Request a tailored quote