Cost of Waterproofing for Prefabricated Slab Houses
There is no unified standard for the cost of waterproofing for prefabricated slab houses, as it varies depending on factors such as the type of house, the construction area, and regional differences. Here is a detailed introduction from different scenarios:
Cost of Waterproofing for Prefabricated Slab Roofs in Rural Self-built Houses
In rural self-built houses, when prefabricated slabs are used for the roof, waterproofing needs to be carried out independently. Due to the relatively high probability of rain leakage in prefabricated slab roofs, there are significant differences in waterproofing costs and effects. A case shows that for a roof of 40 - 50 square meters using floor slabs (cement prefabricated slabs), the total cost is over 800 yuan, but the waterproofing effect of this method is often not good, and additional maintenance costs may be incurred later. This is because in the waterproofing construction of rural self-built houses, factors such as construction techniques and material quality may limit the achievement of an ideal waterproofing effect, resulting in the need for continuous investment in repairs in the later stage.
Cost of Waterproofing for Bathrooms in Prefabricated Slab Houses in Old Urban Communities
Taking the prefabricated slab houses in old communities built around 2000 in Jinniu District, Chengdu as an example, the quoted price for single-item waterproofing construction in bathrooms is about 80 - 150 yuan per square meter. This price range mainly depends on the quality of the waterproofing materials and the complexity of the construction techniques. If high-quality waterproofing materials are selected and the construction techniques are relatively refined, the price may be relatively high; conversely, if ordinary materials are used and the construction techniques are relatively simple, the price will be relatively low.
Additional Costs Due to Poor Waterproofing
If the waterproofing in the bathroom of a prefabricated slab house is not done well, resulting in water leakage to the downstairs, the cost of rework and compensation is usually between 15,000 and 30,000 yuan, which is more than three times the cost of doing a good job of waterproofing for the first time. This is because once a water leakage problem occurs, not only does the waterproofing construction need to be redone, but it may also cause damage to the decoration downstairs, and corresponding compensation responsibilities need to be borne. Moreover, the difficulty and cost of rework construction are often higher than those of the initial construction, as it is necessary to first remove the original waterproofing layer and part of the decoration, and then carry out new waterproofing treatment and restore the decoration.
