The Spectra cement jali is a contemporary architectural screen block with a multi-directional geometric pattern that creates a rich, layered visual effect on facade surfaces. Available in Dual Side Finish for partitions and open screens where both faces must look refined, and Single Side Finish for standard compound wall and building facade installation. Designed for modern residential developments, commercial buildings, and high-spec hospitality projects, the Spectra breeze block delivers both cross-ventilation and a sophisticated facade texture. Precast from dense concrete, it is fully weather-resistant and UV stable for long-term outdoor installation. Its bold pattern creates strong shadow play that shifts visually as the sun moves — giving the facade a living quality that static surfaces cannot achieve.
Compound walls and boundary screens in Indian construction face a persistent tension: a solid wall provides privacy and security but eliminates natural ventilation and traps heat, while an open fence provides ventilation but no visual privacy. Conventional solutions — perforated brick, plain mesh, or solid concrete block — satisfy neither requirement adequately.
Decorative concrete breeze blocks — known variously as cement jali, lattice blocks, screen blocks, or concrete ventilation blocks in the construction industry — resolve this tension elegantly. The Spectra Decorative Concrete Breeze Block allows consistent air movement and filtered light through its geometric open pattern while maintaining complete visual privacy. The concrete mass provides shade, reduces radiant heat gain, and creates deep shadow play that flat walls cannot.
Design and Performance
Built from natural grey coloured, natural finish concrete, the Spectra Decorative Concrete Breeze Block delivers Premium Concrete construction, Natural finish surface finish, Colour: Natural Grey, Shape: Square / Geometric Cutout and Dimensions: 8 × 8 × 2.5 in.
Why Builders and Architects Specify This Product
Long-lasting durability with minimal maintenance required. Enhances aesthetic and architectural value of any project. Weather-resistant and suitable for all Indian climatic conditions.
Applications
The Spectra Decorative Concrete Breeze Block is specified across a broad range of construction types. Common applications include Residential construction, Commercial projects, Infrastructure development, Landscaping and Renovation and restoration projects. It is the preferred choice for Civil contractors and builders, Real estate developers, Homeowners, Government and municipal infrastructure projects and Commercial and industrial builders.
The construction industry across India refers to decorative concrete breeze blocks using a wide range of names: cement jali, concrete jali block, ventilation block, lattice concrete block, screen block, and precast partition block. Each term reflects a regional or professional preference, but all describe the same product — an open-pattern gfrc unit used for screens, boundary walls, and ventilated facades.
Technical Specification
The Spectra Decorative Concrete Breeze Block is weighing 3 Kg, finished with a natural finish surface, weather resistance rated as Excellent, water resistant. Installation is straightforward: 1.
Maintenance and Quality
This product requires minimal routine maintenance. Every Spectra Decorative Concrete Breeze Block is manufactured by Dayaram Concrete Legacy — a manufacturer with decades of experience in gfrc and GFRC production across India. Consistent mould quality, controlled mixing ratios, and careful curing ensure that every unit shipped matches the specification and performs as tested.
For bulk orders, project-specific customisation, or trade pricing, contact Dayaram Concrete Legacy directly. Delivery is available across India, and the team can advise on quantities, specifications, and installation support for any project scale.

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