Exterior Wall Coatings
Exterior wall surfaces confront rain, wind-driven moisture, and sunlight, making proper protection essential. A water-repellent coating (발수코팅) forms a moisture barrier while allowing the substrate to breathe, reducing blistering and paint failure. Choose between silicone, acrylic, or polyurethane films based on substrate compatibility, roofline proximity, and expected weather exposure.
Surface preparation is the foundation of durability, including cleaning, removing old coatings, and repairing cracks. Primers improve adhesion and water resistance, while choosing the right method—brush, roller, or spray—depends on substrate geometry and coating viscosity. For long-lasting performance, ensure the substrate is dry and dust-free before applying a uniform coat, followed by proper curing time.
Rooftop Waterproofing
Rooftops face rapid thermal cycling, ponding moisture, and UV exposure that stresses coatings. Selecting a compatible approach is key, including cementitious waterproofing, bituminous membranes, or elastomeric polyurethane coatings. Consider substrate compatibility, slope drainage, and flashing details around vents and edges to prevent leaks.
Preparation and application follow a deliberate sequence: crack repair or leveling, priming if needed, membrane installation, and a top coat for UV resistance. For built-up roofs, a seamless membrane reduces joints, while for low-slope roofs, detailing at edges and penetrations matters. Always ensure a clean, dry surface and verify adhesion before the final walkable surface is allowed to cure.
Bathroom Waterproofing
Bathrooms face high humidity and diverse wet areas that challenge substrates. A proper setup uses moisture-resistant substrates, cement boards, and a dedicated waterproofing membrane behind tiles, with a primer to boost adhesion. Ensure a uniform waterproof layer thickness per manufacturer guidelines, and protect transitions before tiling.
Joints around fixtures, corners, and penetrations are critical, so use compatible sealants and corner beads where needed. Plan for penetrations such as showerheads, drains, and taps with integrated waterproofing details to prevent leaks. After tiling, verify the surface is clean and allow the coating to cure fully before use.
Maintenance and Upkeep
Regular inspection is essential to catch early signs of wear, such as blisters, cracks, or coating delamination. Schedule visual checks after harsh seasons and clean surfaces to reveal underlying issues. Track recoat intervals based on UV exposure, foot traffic, and rainfall patterns to maintain performance.
Address issues promptly with targeted repairs to minimize disruption and cost. Use compatible products to touch up or recoat affected zones without removing the entire system. Maintain drainage paths and use mild cleaners to avoid degrading the coating over time.