What Waterproof Coating On The Roof Is The Most Durable

In general, spray polyurethane and polyurethane elastic waterproof coatings are more durable.
First, the type of waterproof coating on the roof
Roof waterproof coating can be divided into the following categories according to different components and characteristics: polyurethane waterproof coating, polyurethane elastic waterproof coating, asphalt waterproof coating, SBS asphalt waterproof coil, APP asphalt waterproof membrane, TPO waterproof coil, PVC waterproof membrane and so on. Each waterproof coating has different characteristics, so it is necessary to choose a suitable waterproof coating for different roof materials.

Second, the characteristics of roof waterproof coating comparison
1. Polyurethane waterproof coating

Advantages: Good endurance, more than 10 years of service life, to prevent leakage; No solvent, non-toxic and tasteless; It has the characteristics of good flexibility and strong adhesion. Anti-uv linearity, anti-aging, corrosion resistance and other properties are very good;

Disadvantages: If it is exposed to the sun for a long time, the color will gradually become lighter.

2. Polyurethane elastic waterproof coating

Advantages: polyurethane elastic waterproof coating is not only good water resistance, but also has a certain elasticity after use, and the anti-cracking effect will be better, therefore, walking or walking and transportation will be less damaged; Wide range of application, suitable for complex slope, shaped roof and other special parts;

Disadvantages: the coating is relatively thick, the brushing area is relatively small, the required labor force is more, the brushing process is special, and the base is to be maintained for a long time.

3. Asphalt waterproof coating

Advantages: asphalt waterproof coating has good waterproof effect and durability, and is widely used in engineering construction;

Disadvantages: asphalt waterproof coating has some obvious disadvantages, such as possible pollution to the environment, paint smell, difficult to clean and so on.

4. Waterproof coil

Its advantages and disadvantages are roughly the same: it has the advantages of long service life, pollution resistance, corrosion resistance and good waterproof performance. However, due to its relatively complex use and construction, there are some difficulties in construction selection and personnel training.

Third, the most durable paint type recommended
Overall comparison, under the premise of suitable roof surface material, spraying polyurethane and polyurethane elastic waterproof coating is more durable.

Four, waterproof maintenance tips
1. The roof waterproof can be waxed or painted every once in a while;

2. The roof drainage system should be regularly cleaned of water, soil or other blockages;

3. Ventilation of the roof, timely replacement of damaged waterproof layer;

4. Regularly detect the aging of the waterproof layer and deal with the problem in time.