Waterproofing of Bathrooms & WC
Today in modern buildings, bathrooms are not just the places of freshening up but also are visualized as personal spaces to get refreshed and rejuvenated. As a matter of fact, a substantial amount of time and investment is put in to makeover or build bathrooms as per individual’s choice. Of all the rooms in your house, you will need the bathroom to be the most waterproofed.
The whole visualization gets disturbed when such bathrooms look wet and get frequently exposed to water penetration through gaps. Failure to waterproof bathrooms not only hampers the looks of your house but it could also lead to major problems. Though wet areas occupy less than 10% of the gross floor area, the annual maintenance cost for such bathrooms’ area can range from 35% to 50% of the total maintenance cost depending on the type of facility.
Normally the materials and components used in bathroom to make its floor, wall, architectural finishes etc. including service pipes and sanitary fittings are susceptible to natural movement and as a result, the materials made of clay and tiles affect the joints and cause the tiles to shift. This results in the leakages and dampness on the walls. So, waterproofing of the bathroom is one of the most important parameters and we have to ensure that the waterproofing systems are applied correctly and carefully. The wrong selection and incorrect applications cause the premature failure against leakage and rectification becomes much costly and time-consuming and annoying too.
The main purpose of the waterproofing treatment is to stop the movement of water through the floor bed or moisture penetration through the walls: drainage of the water through proper slope to the drain points.
Generally common defects that occur in bathrooms and toilets are:
- Seepage through structural joint due to use of poor quality material or insufficient water tightness owing to poor application, main water source remains undetected and unattended.
- Leakage through porous concrete due to poor design and inadequate mixing, concrete retains water and remains damp for long time.
- Cracks in tiles if the tiles are not soaked and not tapped in place properly, they lose their water tightness with time and get damaged by subsequent construction activities.
- Tile de-bonding because of inadequate provision or wrong detailing joints or excessive shrinkage of the substrate due to improper mixing and insufficient curing.
- Rust staining because of moisture migration and leaching of the surface and unattended algae and fungus growth on the surface due to prolonged dampness and poor ventilation.
- Leakage at pipe penetration and joints unplanned plumbing work creates gaps left at the junction and also when no proper protection is taken around the concealed and embedded pipes, water can seep through causing severe damage.
- Leakage through floor traps due to improper laying of floor trap along the slope and insufficient protection at the corner rounds or poor application of membrane around pipes, water can seep through the joints.
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