Bathroom would require applications of water proofing on the wall and floor to prevent water, formation of mold and mildew on the wall and floor.

Step-by-step guide to waterproofing a bathroom

1. Materials Needed
2. Waterproofing membrane or paint
3. Primer
4. Sealant
5. Waterproof tape
6. Brush or roller
7. Trowel
8. Screed
9. Silicon sealant
10. Tile adhesive (if tiling)

Steps to follow:

1. Prepare the Surface

Clean the Area: Wash the area to be sealed to remove every form of contamination including dirt, dust, grease, or any old sealant that could be on the surface of area to be sealed.
Repair Cracks and Holes: By then, make sure you use adequate filler to cover for all the existing or likely crack or gaps in the walls or floor.
Dry the Surface: The first preparatory process that must be done is surface preparation and this includes; before one can waterproof any surface, it must be dry.

2. Apply Primer

Choose the Right Primer: Select a suitable primer to apply on your water-proofing layer or you can prefer to apply your preferred color on the exterior design.
Apply the Primer: A brush or a roller can be used in applying the primer and it is done starting with the top part of the wall and floor down to the rims. Allow it to dry and, depending of its manufacture specifications, that can be anywhere from a few minutes to few hours.

3. The Waterproofing Membrane or Paint is applied

First Coat: When applying the first layer in the waterproofing membrane or the first layer of color it is wise to do it by brush or rollers. Check if all the crevices inclusive of the corners and sides of the bathtub has been painted.
Reinforce Corners and Joints: About all the corners and seams, use the waterproof tape to reinforce them to add some extra strength. Applying the tape, the first of the coat has to be done before the solution starts to dry out.
Second Coat: If the first is dry then apply the second coat of the plaster in the wall or sides of the wall. Ensure it is applied all over for best outcome The user should ensure that putting on the cream is done all over thoroughly, so as to have the best result.

4. Seal Joints and Fixtures

Seal Joints: Seal, with a silicon sealant in areas of; wond and floor intersections, pipes and so on.
Apply Sealant Generously: It should also be noted that all joints and intersection spores of the structure should be properly fitted in with insulators to ensure that water does not penetrate through it.

5. Tiling (if applicable)

Apply Tile Adhesive: Once the former waterproofing layer sets to the surface of the surface then apply the tile adhesive to the existing surface through the trowel.
Lay Tiles: Bare tiles and put on the adhesive and the thing that is very vital here is that the tiles have to be properly spaced and aligned.
Grout Tiles: After the adhesive has set it is next to fill in the jack with grout before allowing the grout to dry.
Seal Grout: It is recommended that once the grout has been laid down it should be sealed to prevent it from absorbing water.

6. Final Inspection

Check for Gaps: Run your finger across much of the area to make sure that you have not left any gaps or that the machine has not passed over a certain area.
Test for Leaks: In any case, conduct a water test to ascertain from the fact that the waterproofing has been conducted well.

Bathroom Waterproofing Tips:

Ventilation: Ensure the room is properly ventilated when applying the waterproofing on the surfaces in the bathroom.
Follow Manufacturer Instructions: Aside from that, the length of time that should pass before washing the treated surface should also be correct and how the treatment has to be applied should also be correct according to the manufacture’s instruction.
Professional Help: Nearly optimal is to hand the job to a professional if not quite certain of how to address the issue.
Thus, the waterproofing should protect the bathroom from the water leakage and infiltration, and at the same time it must ensure the healthy microclimate of the area.