Is it allowed by law to add a layer of colored steel tile to the top floor? The best way to waterproof the top floor.

Water leakage in the top floor is a serious problem. Leakage from the top floor to the room will affect indoor furniture, mildew and other bad problems. Some friends just want to add a layer of colored steel tiles to solve the problem. So is it legal to add a layer of colored steel tiles to the top floor to leak water? What is the best way to waterproof the top floor? Let's take a look at the waterproof method of the top floor with us.

Is it allowed by law to add a layer of colored steel tile to the top floor for water leakage?

It is not recommended to deal with the roof leakage of the top floor of residential buildings without permission, and it should be reported to property maintenance. The main reasons are as follows:

1. According to the relevant provisions of the Measures for Quality Warranty of Building Engineering promulgated by the Ministry of Construction in 2000, the warranty period of roof waterproofing works is five years. If it is delivered for use within five years, the housing construction unit shall provide maintenance for it, and notify the property management company to contact the developer or the housing construction unit for maintenance within this period;

2. If the house is delivered for more than five years, notify the property company that the property company will use the public maintenance fund paid by the owner for maintenance, because the roof waterproof project belongs to the public part of the building, and the property company should repair its damage;

3, roofing waterproof project, in the process of construction, workers need to show certificates, roofing waterproof has certain risks.

To sum up, it is not recommended that the owner carry out maintenance by himself, but contact the property management company for maintenance.

The best way to waterproof the top floor

First, use polyurethane for waterproofing.

There are two ways of top-layer polyurethane waterproofing, namely "bonding method" and "ventilation buffering method", but ventilation buffering method is very common in top-layer waterproof engineering.

1. ventilation buffer method

It is the most popular standard practice for roof waterproofing. A ventilation board with ventilation slots is installed on the back, and polyurethane resin is poured on it.

Ventilation buffering method ensures the air to pass through by installing ventilation plates, and improves the water accumulation in the gap between the base and the waterproof layer, which is the best method for waterproofing the roof structure.

Ventilation and buffering polyurethane waterproofing is equipped with degasser, and air circulates continuously inside the waterproof layer. Therefore, even if rainwater leaks into the building, moisture will be removed and the waterproof performance is stable. Therefore, the roof waterproofing is usually polyurethane waterproofing with ventilation buffering method.

2. Bonding method

It is a method of pouring waterproof materials directly on the substrate, which is rarely used for roof waterproofing. Roofs such as concrete and mortar absorb rainwater like sponges, so if the construction method is adhered to, water will gather between the foundation and waterproof layer (polyurethane). If there is water between the grounding layer and the waterproof layer, the waterproof layer will expand like bubbles, resulting in peeling or expansion of the waterproof layer, which may lead to poor structure.

Second, make use of asphalt waterproofing.

Asphalt waterproofing is a waterproof method using asphalt, which is also used in roads. It is a kind of construction method with strong durability. Usually, large-scale roofing waterproof materials of more than 200 square meters are used for construction. Asphalt waterproof technology has a history of 100 years, in which some construction methods have been established, and the materials will change according to the construction methods.

Methods: Hot melting method.

The back of the waterproof board is coated with liquid asphalt, which is a construction method of baking the board with a hot melt spray gun, and then melting the asphalt before coating. This is a widely used method for roof waterproofing, because it does not produce typical odor, such as asphalt.

Third, use pvc board for waterproofing.

PVC board waterproofing is the most suitable waterproofing method for apartments and buildings 100 square meters or above, because it is covered with boards. Pvc waterproof board is a waterproof method, which forms a waterproof layer by covering vinyl chloride (VCM) board which is also used for water pipes.

Because it is covered with wooden boards, it can be installed without removing the existing waterproof layer (such as polyurethane waterproof layer), which is the most suitable waterproof method for the top floor, such as the maintenance of rainwater leakage.

Compared with polyurethane waterproofing, pvc sheet waterproofing has a longer service life (durability) and similar building unit price, so as an economical and efficient waterproofing method, it is widely used in roof waterproofing. Similar to carbamate, there are two waterproof methods for pvc sheets, namely "bonding method" and "mechanical fixation method".

Methods: Hot melting method.

1. bonding method

This waterproof method is to stick a layer of glue on the waterproof sheet. Because it is attached to the foundation, the adhesive may fall off, which is affected by the foundation conditions, so it is not suitable for roof waterproofing.

2. Mechanical fixing method

The mechanical fixing method is a method of mechanically beating the waterproof sheet on the substrate by using a special fixing member called a fixing disk. Mechanical fixation method is not affected by the deterioration of foundation engineering, and it is an excellent method for large-scale construction, such as roof repair.

The above is about whether it is allowed by law to add a layer of colored steel tile to the top floor, and introduces the best waterproof method for the top floor. It is best to cover the top floor with water leakage or let the property be repaired with the consent of the property. Generally, it is illegal to build a top floor, so don't add it indiscriminately. It is very important to prevent the top floor from leaking.