In the wonderful world of architecture, there is an invisible guardian silently guarding the walls, which is fiberglass mesh cloth, also commonly known as crack prevention net, wall crack prevention net, etc. Despite its simple name, its role is significant, just like Guo Jing in Jin Yong's works, who appears dull but actually possesses unique skills to protect Xiangyang City.

What is fiberglass mesh cloth

Glass fiber gridding cloth, in brief, is made of glass fiber woven fabric as the base material, and then treated with polymer anti lotion immersion coating. This is like putting strong armor on a warrior, giving it good alkali resistance, flexibility, and high tensile strength in the longitudinal and latitudinal directions. Its main component is alkali free fiberglass yarn, which is like its "backbone". The main component is silicate, which has excellent chemical stability, like an old soldier who has stood firm in his post despite the wind and rain. Its organizational structure is woven from gauze tissue, and then subjected to high-temperature heat setting treatments such as alkali resistance and reinforcing agents. This series of "cultivation" makes it incredibly powerful. Just like Hercules in Western mythology, who went through twelve trials and eventually became a great hero.

Working principle of fiberglass mesh cloth

Its working principle is like weaving a tight protective net around the wall. When the wall is affected by factors such as temperature changes, humidity changes, wind pressure, and building settlement, it is like a person walking in a strong wind, their body will be pulled by various forces. And the mesh fabric is like a resilient mesh, evenly distributing these stresses to prevent cracks from appearing on the wall. Just like in areas with large temperature differences between day and night, the thermal expansion and contraction of exterior wall materials are obvious. Grid cloth can act as a gentle guardian, evenly dispersing the stress generated by this expansion and contraction, avoiding local stress concentration and the occurrence of cracks. This principle is somewhat similar to ancient Chinese Tai Chi, which uses softness to overcome hardness. Although it may seem gentle, it can dissolve powerful external forces.

Applicable scenarios of fiberglass mesh cloth

1. Insulation of interior and exterior walls of buildings

In the cold winter, it's like putting a thick cotton coat on the house; In the hot summer, it's like holding up a sunshade for the house. Make indoor temperature more stable and reduce energy consumption. Just like Thoreau's cabin by Walden Lake, simple yet able to withstand harsh external environments.

2. Waterproof, fireproof, and crack resistant

Whether it's roof waterproofing or wall crack resistance, it can show off its skills. In roof waterproofing, combining with waterproof materials enhances the crack resistance of the waterproof layer and extends the service life of the roof waterproofing system. In the field of wall crack resistance, it is used in scenarios such as the junction between newly constructed walls and existing walls, repairing after wall slotting, and reinforcing wall plastering to maintain the flatness and aesthetic appearance of the wall. Just like the walls of Notre Dame Cathedral in Paris, although they have weathered the test of time, they remain strong.

3. Enhance cement products

When making cement products such as Roman columns and chimneys, adding mesh cloth can significantly improve the tensile strength, flexural strength, and impact resistance of the products, making them more durable and sturdy. Just like the steel structure of the Eiffel Tower, stable and powerful.

4. Granite, mosaic mesh, and marble backing mesh: make these stones more stable during use, less prone to cracking and damage. It's like putting a sturdy protective layer on these beautiful stones.

Common problems and answers of fiberglass mesh cloth

1.What are the sizes of mesh cloth?

The common mesh areas are 5mm × 5mm, 4mm × 4mm, and 3mm × 3mm, with a weight of 80-160 grams per square meter, a length of 50 meters, 100 meters, or 200 meters per roll, and a width of 1-2 meters per roll. Of course, special specifications can also be customized according to customer requirements.

2.What are the colors of mesh cloth?

The standard color is white, but there are also blue, green, or other colors to choose from.

3.How to construct the mesh cloth?

At the first floor of the building, door and window openings, decorative joints, internal and external corners, etc., an additional layer of alkali resistant mesh cloth should be laid, followed by a layer of crack resistant mortar. The lap length of ordinary alkali resistant mesh fabric should not be less than 100mm, and the alkali resistant mesh fabric should only be connected without overlapping. The width of alkali resistant mesh cloth on each side of the corners should not be less than 20mm. The alkali resistant mesh cloth around the door and window openings should be flipped 100mm out of the wall, and a layer of 400mm x 30mm alkali resistant mesh cloth should be added along the 45 ° direction at the four corners.

4.What is the service life of mesh cloth? 

Under normal circumstances, qualified mesh fabrics have a longer service life, but the specific duration may be affected by factors such as usage environment and construction quality.

5. How much tension can the mesh fabric withstand? 

Mesh fabrics of different specifications have different tensile strengths. Generally speaking, they have high tensile strength in the warp and weft directions, which can effectively disperse stress.

6.Can mesh cloth be used for renovating old walls? 

Sure, it can effectively prevent the overall surface tension shrinkage of the old wall plaster layer and cracking caused by external forces, and is commonly used for wall renovation.

7.What is the difference between mesh cloth and regular gauze? 

Mesh cloth is made of glass fiber material, which has undergone special treatment and has characteristics such as alkali resistance, crack resistance, and high strength, while ordinary gauze does not have these functions.

8.What should be noted during the transportation of mesh cloth?

Be careful to avoid direct sunlight and rain, prevent packaging damage, and avoid affecting product quality.

9. How to judge the quality of mesh fabric?

It can be judged from the aspects of material, mesh thickness, mesh size, tensile strength, etc., and the product inspection report can also be viewed.

10.Can mesh cloth be reused?

It is generally not recommended to reuse as the used mesh fabric may have been damaged and its performance may decrease.

11. Will mesh cloth be harmful to the human body? Under normal use, it will not cause harm to the human body, but during construction, attention should be paid to protection to prevent glass fibers from entering the eyes or respiratory tract.