Rooftop Waterproofing
Rooftop waterproofing protects interior spaces from rainwater intrusion and heat loss. A properly sloped roof guides water toward drainage outlets, reducing ponding and membrane stress. Material choices range from bituminous membranes to EPDM, TPO, and cementitious coatings, each with installation quirks.
Assessment starts with surface cleaning, crack sealing, and debris removal to ensure good adhesion. Primers condition the substrate, then membranes are applied with proper overlaps and sealing tapes. Edge detailing around parapets and penetrations is integrated with flashing metal or bituminous terminations to prevent lift.
Exterior Wall Coatings
Exterior walls face daily moisture challenges from rain, humidity, and solar heating. Waterproofing options include cementitious coatings, liquid-applied membranes, and sheet membranes behind finishes. Choosing compatible substrates and finishes reduces risk of delamination and capillary rise.
Crack and joint preparation is critical, with sealing materials that bridge expansion joints. Flashing details at window perimeters and balcony edges prevent water from seeping behind cladding. During install, notes on slope, drainage, and overflows guide later maintenance.
Bathroom Waterproofing
Bathrooms demand robust moisture barriers behind tile and fixtures to prevent mold and decay. Sheet membranes or liquid waterproofing membranes are applied in wet areas before mortar beds. Shower pans require a properly sloped pan liner and surrounding sealing to stop gradual leakage.
Floor-to-wall transitions, sanitary fixtures, and niches get careful sealants and compatible waterproofing products. After curing, moisture tests or water immersion tests verify continuous coverage under tiles. Regular checks for tile hollow sounds or grout cracking help catch issues early.
Maintenance Monitoring
Annual inspections identify surface cracks, blistering coatings, and compromised flashing before leaks form. Nowon-gu leak detection teams use non-destructive techniques like infrared thermography and acoustic testing. Moisture sensors, data logging, and remote alerts enable proactive maintenance decisions.
Smart materials and crystalline waterproofing are trending options that self-heal microcracks in some substrates. Regular reapplication schedules for asphalt, elastomeric, and cementitious systems depend on exposure and wear. Documentation, photos, and permeability tests help track performance across seasons and years.