White Cement for Roofs
White cement provides a durable base for roof repair and surface sealing. When mixed with fine silica sand (규사), it forms a workable mortar that resists cracking. Surface preparation matters; clean the area and dampen it before applying the mix.
Allow patches to cure under shade to minimize rapid drying. Use a breathable topcoat to maintain moisture balance and color consistency. Schedule periodic checks to catch UV wear or microcracks early.
White Cement Crack Repair
Crack repairs begin with cleaning and slightly widening the joint. Mix white cement with fine silica sand (규사) to create a bonding mortar for masonry. Apply in thin layers to brick surfaces such as Ansan bricks for better adhesion.
Dampen the edges before applying each layer and smooth the surface after setting. Integrate the repair with surrounding mortar to prevent water from seeping behind the facade. After curing, seal with a compatible sealant to enhance longevity.
Roof Water Sealing
Roof sealing requires a continuous barrier to resist capillary rise and leaks. Use white cement patches for minor seepage and follow with a flexible membrane or sealant. Ensure proper roof slope and drainage to avoid standing water that undermines repairs.
Maintain gutters and flashings, checking joints where leaks commonly start. Seasonal checks after heavy rain or winter help catch growing cracks. Keep a simple log of repairs to guide future maintenance planning.