Birla Opus Alldry Wall n Roof 12 Cool Shield

Meet Alldry Wall n Roof 12, your go-to solution for next-gen protection for your home. Backed with a 12-year warranty, it keeps water out, giving you peace of mind for a long time. Enjoy a cooler home with upto a remarkable 12°C drop in surface temperature. It holds up against heavy rain with upto 12 bar water pressure resistance, keeping your home dry and secure. There is more to Alldry Wall n Roof 12! It’s flexible film adapts to surface movements, preventing cracks and ensuring long-lasting defence in any weather.


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Birla Opus Alldry Wall n Roof 12 20LT is an advanced waterproofing and heat-reflective coating for terraces, exterior walls and roofs. Designed for homeowners and professionals, it offers long-term, reliable protection against heavy rain, harsh sunlight and surface cracks. Its 12-year warranty and resistance to up to 12 bar water pressure ensure durable, dependable performance in varied climates. The flexible film adapts to surface movements, reducing crack formation and leakage risks over time. Heat-reflective technology helps lower surface temperature by up to 12°C, making interiors more comfortable and energy efficient across seasons. Ideal for renovation or new construction in Kalyanpur, Jharkhand, India, this product combines strength, flexibility and lasting cooling comfort for trustworthy defence.

12-year waterproofing warranty for long-term peace of mind
Withstands up to 12 bar heavy rain water pressure
Up to 12°C cooler surface for more comfortable interiors
Flexible film bridges microcracks and adapts to movements
Ideal for terraces, exterior walls and sloping roofs
Enhances durability of existing waterproofing systems

Clean the surface thoroughly, removing dust, loose particles, algae and existing flaky coatings. Repair visible cracks and damp patches, allowing them to dry completely. Stir Birla Opus Alldry Wall n Roof 12 20LT well before use. Apply the recommended primer if required. Use a brush, roller or spray to apply the first coat uniformly. Allow it to dry as per instructions, then apply the second coat in a perpendicular direction. Ensure specified coverage and film thickness are achieved. Protect the freshly coated surface from rain and standing water until fully cured. Follow all safety guidelines and manufacturer’s technical data sheet for best results.

Birla Opus Alldry Wall n Roof 12 20LT is used for advanced waterproofing and heat reduction on terraces, roofs and exterior walls. It protects surfaces from heavy rain, seepage and UV damage while reducing surface temperature by up to 12°C. The flexible coating also helps bridge microcracks for long-lasting performance.

Alldry Wall n Roof 12 offers a 12-year warranty when applied as per the manufacturer’s guidelines on a properly prepared surface. Its advanced formulation resists up to 12 bar water pressure and adapts to surface movements, helping maintain waterproofing and cooling performance for many years in varying weather conditions.

Yes, Birla Opus Alldry Wall n Roof 12 is designed with heat-reflective technology that can reduce surface temperature by up to 12°C. By reflecting a significant portion of solar heat, it helps keep rooms below terraces and adjacent walls cooler, improving comfort and potentially reducing dependence on air conditioning.

Alldry Wall n Roof 12 is highly suitable for regions with heavy rain. It is tested to withstand water pressure up to 12 bar, providing strong resistance against seepage and leaks on terraces, roofs and exterior walls. When applied correctly, it forms a durable, flexible film that maintains waterproofing even under intense rainfall.

You can apply Birla Opus Alldry Wall n Roof 12 yourself if you follow the instructions carefully: clean the surface thoroughly, repair cracks, use recommended primer, and apply multiple coats at specified coverage. However, for large areas or critical leak-prone zones, hiring a trained applicator ensures better workmanship and full warranty benefits.