Dak is a flat, potentially flooded if the system manufacture is not true. If the pool is always the case when it rains, water will seep into the pores of the concrete.
The cause of the roof is too flat and lacking the required slope. It could also occur because there is a closed waste water discharge line.
To overcome the leak, which has to do is patch it with a two-component waterproofing. The trick is as follows:
- Observe the slope of the roof areas, at least 10% ibutuhkan slope leading to the water discharge line. Create ketrikan in some places, then cover with mortar or cement required instant corresponding slope so that water can flow leads to a sinkhole.
- Cover with waterproofing two components consisting of powder and liquid are mixed according to the manufacturer to form a paste.
- Yag water discharge line closed floor drain should be replaced with a roof drain that serves as a barrier trash and debris from the outside before the water gets into the discharge line. Roof drain on the market size of 4 inches.