What is GRC Jali?
GRC (Glass Reinforced Concrete) Jali is a decorative and functional architectural element made of a composite material combining cement, fine aggregates, alkali-resistant glass fibers, and other additives. It is lightweight, durable, and offers high design flexibility, making it popular for façade cladding, partitions, and decorative screens.
Key Features of GRC Jali
- Durability: Resistant to weathering, corrosion, and UV radiation.
- Lightweight: Easier to handle and install compared to traditional concrete screens.
- Design Versatility: This can be molded into intricate patterns and customized designs.
- Eco-Friendly: Made from sustainable materials and is recyclable.
- Fire Resistance: Non-combustible material suitable for fire-prone areas.
Installation Process for GRC Jali
- Preparation
- Inspect the site and ensure the supporting structure is level, aligned, and capable of bearing the GRC Jali’s weight.
- Verify the jali dimensions and patterns against the architectural plan.
- Assemble tools and materials such as fasteners, brackets, adhesives, and safety gear.
- Fixing Framework
- Install a sturdy framework (metal, aluminum, or wood) to support the jali. Ensure the framework is rust-proof and securely anchored to the wall or structure.
- Drilling and Anchoring
- Drill holes in the GRC jali as per the design plan.
- Use bolts, screws, or brackets to attach the jali to the framework.
- Ensure the anchors are rust-proof and the fasteners are tight to prevent movement.
- Alignment and Leveling
- Align the jali accurately to maintain consistency in pattern and spacing.
- Use a spirit level to ensure the jali is installed straight and aligned with adjacent panels.
- Grouting and Sealing
- Fill gaps between the jali and the framework with cement grout or silicone sealant to ensure stability and prevent water seepage.
- For large panels, expansion joints may be added to accommodate temperature-induced movement.
- Finishing
- Apply a weather-resistant paint or coating, if required, to enhance durability and aesthetic appeal.
- Clean the surface to remove any installation debris or marks.
Precautions During Installation
- Handling
- GRC is relatively fragile during handling; avoid dropping or applying excessive force.
- Use proper lifting equipment or sufficient manpower for large panels.
- Safety
- Workers should wear safety gear, including helmets, gloves, and goggles, during installation.
- Use scaffolding or ladders safely, ensuring they are stable and secure.
- Anchoring
- Ensure the fixing framework and anchors are capable of supporting the load without bending or sagging.
- Use rust-proof and weather-resistant materials for all fixing components.
- Alignment
- Ensure proper alignment of panels to avoid gaps, misalignment, or instability.
- Check measurements twice before drilling or fixing to minimize errors.
- Weather Conditions
- Avoid installation during extreme weather conditions like heavy rain or high winds.
- Allow adequate curing time for grouts and adhesives under suitable conditions.
- Post-Installation Maintenance
- Inspect periodically for cracks, loose fixtures, or surface damage.
- Clean regularly with non-abrasive cleaning agents to maintain appearance.
