Dampness (Sem/Shor) is the number one destroyer of plaster, paint, and brickwork in Multan. Capillary action draws ground moisture into brick pores, causing efflorescence and flaking paint within months if proper barriers are not installed during construction.
1. Soil Compaction and Termite/Moisture Spray
Prior to laying lean concrete, ground soil must be mechanically compacted and saturated with chemical termiticide and moisture repellents.
2. The Multi-Layer DPC Barrier
Never rely on a simple coat of bitumen. An effective DPC requires a dense RCC plinth beam, followed by a 1.5-inch water-resistant concrete layer, double hot bitumen coat, and heavy-gauge polythene sheet.
3. Underground Water Tank Waterproofing
Water leakage from underground water storage tanks frequently saturates surrounding foundation soil. Underground RCC water tanks must be cast with crystalline waterproofing chemical admixtures and finished with a 2-coat polymer waterproofing slurry.
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