Clean the surface properly and remove dust, oil, grease, and loose particles. Ensure the substrate is smooth, dry, and free from cracks or uneven areas. Apply a suitable bitumen primer on the surface and allow it to dry completely. Unroll the SmartCare APP membrane and align it properly on the prepared surface. Heat the underside of the membrane using a gas torch until the bitumen melts. Press the membrane firmly onto the surface to ensure proper bonding. Overlap adjacent membrane sheets properly to prevent water leakage. Check all joints and edges to ensure complete sealing and waterproofing protection.