More and more sunken bathroom, how much do you know?

Bathroom renovation, has been one of the most nerve-wracking things in the renovation process, have seen too many because the bathroom waterproofing is not done, resulting in leaks in the neighbor's home, noise affecting the neighbors sleep reports, not only to others to bring trouble, but also to make their own lives a mess. Therefore, as an essential functional space at home, the basic decoration of the bathroom must be done, and the later beautiful dress up in order to be more points.

Traditional bathroom vs. sunken bathroom

In recent years, more and more sunken bathroom is everyone's choice, a lot of new housing delivery, the developer will also be made into a sunken bathroom, the traditional bathroom in the gradual fade out of people's lives. What is called sunken bathroom? Compared with the traditional bathroom, what advantages does it have?

Sunken bathroom

Sunken bathroom, also known as caisson bathroom. Mainly refers to the main construction of the bathroom structural layer of local or overall sinking from the corresponding floor to a certain height (generally 40cm), so that the bathroom drain can be buried in it, and then backfilled with lightweight materials, the structure of the surface must be set up only for a hole for the drainage riser through the use. Simply put, is the height of the general bathroom floor than the height of the living room floor to be lower than the height of 40 cm or so, the water pipe in the same floor of the home, and then be backfilled up, belongs to the "same level of drainage". The traditional bathroom belongs to the "compartmentalized drainage", your home drainage pipe in the ceiling of the neighbor's home downstairs, if there is a leak, it will cause a great impact on the neighbors, the same way, if the upstairs leaks, your home will also be affected. Below is a clearer illustration of the advantages of a sunken bathroom:

1, no ceiling, the top is more beautiful: sunken bathroom buried in the underground water pipes in the floor of the home, will not affect the beauty of the roof downstairs, downstairs neighbors do not need to hang the ceiling. Because this is designed at the time of construction, so the whole building's bathroom is the same, individuals can not change the traditional type into a sunken type.

2, upstairs flushing toilet, less noise: because buried in the ground water pipes to a large extent has eliminated a large part of the sound, so the downstairs will not be upstairs flushing noise disturbances.

3, sunken waterproofing, leakage will not affect the neighbors: sunken bathroom waterproofing measures if you can do a good job, almost does not affect the lives of neighbors, even if there is, but also their own responsibility for their own homes. But the traditional bathroom is different, once there is a leak, the water will drip directly through the ceiling in the neighbor's home, it is also difficult to take waterproof measures.

4, bathroom sanitary ware location can be arbitrary layout: the layout of the traditional bathroom is difficult to change the original layout, in addition to the main sewage pipe, change the toilet, washbasin and other appliances also need to be in the floor hole perforation, repair is also very cumbersome, and more prone to water leakage. Sunken bathrooms can be rearranged according to their own needs, the location of the toilet, washbasin, shower, without having to discuss with neighbors.

But compared to traditional bathrooms, sunken bathrooms are more expensive to renovate and more difficult to construct.

Sunken bathroom secondary drainage

There are 2 ways to renovate a sunken bathroom: backfill and overhead. But no matter which method is used, secondary drainage is necessary. What is secondary drainage? Secondary drainage is a drainage method to prevent the bathroom buried in the internal plumbing leakage and floor seepage to the downstairs owner's home. If there is a leak on the surface will be accumulated to the subsidence layer below, the subsidence layer of water can not be drained, the subsidence layer is similar to a tank of water storage, even if the waterproofing layer, but after a long time of immersion, it will also be on the floor, the floor of the home, the wall will also absorb moisture off the powder. In serious cases, the water will leak downstairs to the neighbor's home, causing damage to the neighbors. Maintenance at this time, you need to chisel the floor of the bathroom, the sinking layer of maintenance, both trouble and money.

There are 2 ways to renovate a sunken bathroom: backfill and overhead. But no matter which method is used, secondary drainage is necessary. What is secondary drainage? Secondary drainage is a drainage method to prevent the bathroom buried in the internal plumbing leakage and floor seepage to the downstairs owner's home. If there is a leak on the surface will be accumulated to the subsidence layer below, the subsidence layer of water can not be drained, the subsidence layer is similar to a tank of water storage, even if the waterproofing layer, but after a long time of immersion, it will also be on the floor, the floor of the home, the wall will also absorb moisture off the powder. In serious cases, the water will leak downstairs to the neighbor's home, causing damage to the neighbors. Maintenance at this time, you need to chisel the floor of the bathroom, the sinking layer of maintenance, both trouble and money.

How to do secondary drainage? There are several common measures to share with you:

1, the dark drain

This is a very common secondary drainage, the lowest point in the bathroom floor, do a tee or elbow connected to the main water pipe, with a small cover with a sieve cover, and do a good job of waterproofing and blocking around the dark drain. However, such construction is more troublesome, and can not completely solve the problem of water accumulation caused by leakage of pipes under the caisson.

2, open holes in the main pipe or casing

You can open a 25mm or so in the main downpipe drainage holes, the height of the holes and the first layer of waterproofing layer surface height, and at the same time, to stagger the drainage cross-pipe interface to the drain holes as the lowest point for leveling. It should be noted that the open hole needs to be polished, otherwise the burrs on the edge of the hole is easy to scratch the waterproof layer.

3, add conduit on the main

After the main drain hole, inserted a 40mm long, 25mm diameter conduit, one end coated with PVC adhesive stuffed into the main downpipe, the other end of the pipe wall drilling holes in the caisson. The drainage conduit mouth as the lowest point of the slope, waterproofing and backfill. However, the conduit can only enter water at one end, and if you miss the entrance of the conduit, the secondary drainage can not be completed.

4, in the main water excluder

Installed in the main downpipe after the opening of the water excluder, and then the water excluder as the lowest point of slope, waterproofing and backfill, but the cost is higher.

Meanwhile, the secondary drainage floor drain of the sinking layer must be placed at the lowest point of the sinking area when leveling, so that the water in the sinking area can be channeled and discharged. Therefore, before the renovation you can check whether the developer has reserved the secondary drainage port, if so, the renovation will be much more convenient, if not, it is recommended that you need to add one yourself.

Sunken bathroom decoration

First of all, before doing the waterproofing of the sunken layer, you need to clean up the grass-roots level, so that the grass-roots level, if the surface has a rough particulate matter, waterproofing coatings can not be uniformly brushed, and can not achieve the effect of waterproofing. After cleaning, you can do the first waterproofing of the sinking layer. Inside the caisson, brush 2 times waterproof material, the first time with K11 general-purpose waterproof coating, the second time with K11 tough flexible waterproof coating, vertical and horizontal painting. In the water pipe and concrete junction, the root of the floor drain, the wall junction of the sun angle line, threshold and other details of the key parts, need to focus on painting.

Waterproof 24 hours later, can be covered with a damp cloth or spray sprinkler for maintenance, before it is completely dry, can not be stepped on, exposure to the sun, to avoid sharp sharp objects to destroy the waterproof layer.

After the waterproof layer is dry and solid (at least 24 hours in summer, at least 48 hours in winter), you can do the sinking layer of closed water test, full of water for 48 hours, lightweight walls to do the water test, test waterproofing painting is qualified. Qualified, you can carry out the next process.

Just said, the sunken bathroom renovation method There are 2 kinds: backfill and overhead. Now you can do the construction according to your choice.

One, sunken bathroom backfill

Before backfilling, you can check the setting of the downspout to avoid P-bend and S-bend in the sunken layer, which will increase the difficulty of unclogging the water pipe in the future.

1, masonry lattice: before backfilling, need to use red brick or cement brick lattice, lattice size between 40mm - 60mm, play a role in supporting the force and protection of water pipes.

2, fill the ceramic grain: fill in the middle of the grid ceramic grain

Round ceramic grains are lighter in weight, will not cause sharp damage to the water pipe, which itself is weak in the ability to absorb water, if a small amount of leakage phenomenon, ceramic grains can be absorbed on their own. In the process of renovation, there will also be the use of cinder blocks to backfill the subsidence layer. But absolutely must reject the direct use of construction waste as backfill material.

3, cloth rebar: in the lattice above the cloth a layer of 10mm diameter rebar, vertical and horizontal arrangement, the formation of 20mm * 20mm rebar network, play a supporting role in preventing the collapse of the backfill layer can also play a role in protecting the water pipe.

4, pouring concrete, leveling again

While the self-weight of the ceramic granules is very light, but if a long time after the infiltration of water immersion, it will still be on the floor slab, on the drain caused by a certain amount of weight pressure. In the later maintenance, the difficulty is also greater. Compared to this point, the process of overhead can be a good solution.

Two, sunken bathroom overhead

Sunken bathroom overhead processing often use prefabricated panels + columns.

1, according to the location of the drainpipe, floor drain, red brick columns, cement mortar reinforcement of the skeleton of the overhead, play the overhead support.

2, pre-customized prefabricated panels placed on the red brick, the plate can be added to reinforce the steel, sinking layer directly overhead. Pay attention to the location of the floor leakage at the reservation, in order to facilitate future maintenance.

3, after laying, fill the gap between the board with cement mortar, especially for the floor drain, between the board and the board, between the board and the wall and other locations to fill the gap.

4. Then use cement mortar to level the surface layer.

Whether backfill or surface layer is completed, it is the construction of the bathroom surface layer of the arrangement of the ......

Content provided by the good living user Ran Design-Design, more questions to the good living APP and the owner of the house direct communication it~