Hollow-core slabs are precast with defined dimensions and light hollows, reducing formwork and construction time. Cast-in-place concrete is poured on-site and needs longer curing. In Saudi residential and commercial projects, hollow-core slabs are often preferred for flat roofs to lower loads.
Thickness depends on support spacing and expected loads. For villas and residential buildings, 150 mm or 200 mm is common. For commercial buildings or longer spans, 200 mm or 250 mm may be required. Confirm the final spacing and loads with your structural engineer before ordering.
Yes. Matkel hollow-core slabs are made from high-strength concrete and offer good fire resistance based on thickness and design. For Saudi projects, ensure they meet Saudi Building Code requirements, including approved concrete specifications and the required reinforcement.
Their concrete mass helps reduce noise between floors, but thermal insulation depends on added insulation, coatings, and detailing. In hot coastal Saudi cities, Matkel recommends adding an insulation layer or reflective coating for projects exposed to high temperatures.
Proper installation prevents most leaks and cracks. Joints should be filled with suitable mortar, and edges should be sealed with waterproofing. Matkel supplies slabs with standardized specifications and installation guidance, helping reduce errors and protect roofs in rainy areas.