• by admin
• 2022-12-12

Anti leakage Scheme of Metal Sandwich Panel Roof

Thermal expansion and cold contraction, and temperature difference will lead to looseness of metal roof fasteners, deformation or enlargement of sheet iron at plate joints. In addition, acid rain and solar ultraviolet rays can greatly damage the metal paint and accelerate the aging of surface paint. If the metal roof is not maintained for a long time, the paint will soon bubble, fall off, and the iron sheet will be severely rusted, which will lead to roof leakage.

After understanding the structure of metal sandwich panel roof, possible leakage points and causes of leakage, let's talk about the treatment plan again. Based on years of construction experience, Yirong sandwich panel manufacturer proposed two schemes to prevent water leakage:

1. The overall roof shall be waterproof again

This scheme can make the metal sandwich panel roof form a waterproof layer with integral connection. It is recommended to use self-adhesive coiled materials. The self-adhesive coiled material is a waterproof and sealing material that can bond with the base surface itself. It is divided into two types: tire self-adhesive and tire free self-adhesive. The tire is self-adhesive, and the upper and lower parts are made of viscose intermediate clamping base. The upper covering is vinyl film, and the lower covering is peelable silicone oil film. The tire free self-adhesive is composed of self-adhesive adhesive, upper vinyl film and lower silicone oil film. The product has self-healing property, that is, when the coiled material is punctured or embedded with hard objects, it will automatically integrate with these objects, and still maintain good waterproof performance. The upper skin is made of pure metal aluminum foil, which has the function of heat resistance and insulation. The temperature of color steel tile can be effectively reduced in summer.

2. Use special waterproof paint for metal roof

The metal roof waterproof coating is made of high-quality polymer resin as the base material, and refined by adding a variety of special high-quality auxiliary materials. It is a water-based, single component, high elastic and weather resistant waterproof coating. With the help of the seamless waterproof system formed by focusing on non-woven fabrics, this system can effectively solve the persistent water leakage problem of metal roof after anti-corrosion and rust prevention treatment.