Rooftop Waterproofing
Rooftop waterproofing protects the structure from rain and sun. Begin with a clean, dry surface, repair cracks, and ensure proper drainage. Choose a membrane based on climate and roof type, then apply a compatible primer to improve adhesion.
Liquid membranes form seamless barriers on flat roofs. Sheet membranes such as TPO, PVC, or bituminous sheets offer durable seams. Field joints and penetrations must be reinforced with flashing to prevent leaks around vents and HVAC equipment.
Sealing Methods for Roofs
Sealing is critical at edges, penetrations, and transitions with walls. Select membrane options like single-ply sheets or cementitious coatings for your deck movement and climate. Proper surface prep ensures adhesion, so remove dust and old coatings before application.
Flashings around vents and skylights must be installed meticulously. Use heat-welded seams for sheet membranes or adhesive seals for liquids. Drainage channels should be integrated to avoid water pooling.
Roof Deck Maintenance
Regular inspections keep rooftop waterproofing effective. After storms, look for blisters, cracks, or lifted edges near flashings. Clear debris from drains and verify drainage paths.
Re-coating or membrane top-ups may be needed every 5 to 15 years, depending on material. Schedule professional checks for penetrations and curbs. Document repairs with photos and maintain a maintenance log.
Smart Trends in Waterproofing
Smart trends combine performance with monitoring to prevent leaks. Self-healing membranes repair micro-tears after rain exposure. IoT sensors monitor moisture and temperature and send alerts early.
Integrated building management uses thermostats and humidity controllers to optimize energy and limit condensation near roof equipment. Moisture sensors near HVAC curbs provide early warnings. Green rooftops with compatible waterproofing extend roof life.