Rooftop Waterproofing
Rooftops face rain, wind, and heat, so a seamless waterproofing layer is essential around any sprinkler head penetrations. The installation must maintain membrane continuity across the deck, with proper sleeves or collars around the sprinkler head to prevent leaks. Slope and drainage details matter to avoid water pooling near fire protection equipment. Regular post-storm checks help detect small defects before they threaten the system.
Material options include TPO, EPDM, and cementitious coatings, chosen for UV resistance and elongation. For complex penetrations around sprinkler heads, liquid-applied membranes offer precise sealing that sheet membranes cannot. Anchor points and flashing around head penetrations should use corrosion-resistant hardware like SUS304 for durability. A diligent installation sequence includes surface prep, priming, membrane laydown, and a final protection layer.
Exterior Wall Shielding
Exterior walls are continuously exposed to rain, temperature changes, and spray from nearby firefighting systems. When passing sprinkler heads through walls, penetrations must be sealed with fire-rated, waterproof collars to avoid moisture ingress. Choosing corrosion-resistant materials for pipes and fasteners protects against rust and ensures long service life. Regular exterior inspections help identify cracking coatings, flashing gaps, or blocked weep holes early.
During installation, integrate flashing with the cladding so water flows away from the sprinkler head interface. Use either sheet membranes or liquid membranes compatible with wall substrates and fire protection specs. After installation, perform leak tests to confirm waterproof performance around penetrations and pipe sleeves. Maintenance tips include re-sealing joints every few years and cleaning debris from weep paths.
Bathroom Waterproofing
Bathrooms demand high humidity tolerance and robust waterproof layers behind tiles and fixtures. Ceiling sprinklers require careful sealing where the head meets the ceiling, using proper collars and guards. Choose a reliable combination of tile backing, sealants, and waterproof membranes for long-term performance. Using stainless steel piping such as SUS304 in concealed runs reduces corrosion risk in wet zones.
Ensure proper slope toward drains to prevent water from collecting near the sprinkler head area. Elastomeric sealants around penetrations provide resilient, cleanable joints in moist environments. Pressure testing after setting tiles verifies waterproof integrity around heads and joints. Regular maintenance includes checking grout lines for cracks, resealing annually, and cleaning filters in drainage systems.