PRODUCT DESCRIPTION       
SBS modified asphalt waterproofing membrane is made of SBS (styrene butadiene styrene) thermoplastic elastomer modified asphalt as the coating material, high-quality polyester felt, glass fiber felt, and glass fiber reinforced polyester felt as the base material, and fine sand, mineral granules, PE film, aluminum film, etc. as the covering material. It is made by special mechanical stirring and grinding.

PRODUCT FEATURES

▪ Strong impermeability;  
▪ High tensile strength, high elongation, good dimensional stability, strong adaptability to base shrinkage deformation and cracking;
▪ Good resistance to high and low temperatures, SBS is suitable for building waterproofing in lower temperature environments, and APP is suitable for building waterproofing in higher temperature environments;  
▪ Good puncture resistance, abrasion resistance, tear resistance, corrosion resistance, mold resistance, and weather resistance;  
▪ Convenient construction, hot melt construction can be operated all year round, and the joints are reliable.

CONSTRUCTION TECHNOLOGY

Hot melt method, cold bonding method, and cold hot bonding method
The roll material can be constructed separately using hot melt or cold bonding methods, or using a combination of hot and cold methods, that is, using cold bonding methods for large areas, and using hot melt methods for construction at the joints.
Hot melt method: Use a flame gun or spray lamp to bake the bottom and base surface of the roll material, melting the asphalt on the surface of the roll material. While baking, roll the roll material forward, and then use a pressure roller to press it firmly to the base or roll material.
Cold bonding method: First, evenly apply the adhesive on the waterproof base layer and the roll material. After a little cooling, the roll material can be bonded. Then, use a pressure roller to roll and squeeze out the air underneath the roll material, making it flat, tight, and firmly attached to the base layer or roll material.
Construction equipment and auxiliary materials
▪ Construction tools for cleaning waterproof base: shovel, broom, dust blower, hammer, steel chisel, etc.
▪ Construction tools for laying rolls: scissors, tape measure, wire box, scraper, brush, pressure roller.
▪ Specialized hot melt equipment: single or multi head hot melt spray gun or spray lamp.
▪ Accessories: base treatment agent, roll adhesive, closing pressure strip
Roll laying
▪ Before construction, the base layer that has passed the acceptance inspection should be cleaned up, and the dust at the edges and corners should be blown clean.
▪ The base treatment agent should be applied evenly and consistently, and should not be repeatedly applied.
▪ After the grassroots treatment agent is dried, the roof waterproofing project and the underground waterproofing project that require additional layers should be laid with additional layers according to the design requirements.
▪ Determine the sequence and direction of laying the roll material and mark the line on the base layer, then lay the roll material. The pasting of different parts of the roll material should be carried out according to the following requirements.
▪ Roofing: bonding of rolls and base points or strips; The 800mm surrounding area of the roof should be fully pasted; More than 70% of the bonding area on the sloping roof is fully bonded between the rolls;
▪ Basement floor: The roll material can be fully bonded, point bonded, strip bonded, or laid empty to the base layer, but the roll material must be fully bonded to each other;
▪ Basement vertical wall: The rolls should be fully adhered to the base layer and between rolls;
▪ Additional layer: The general area is fully pasted, and empty paving is allowed at the deformation joint.
▪ The laying sequence is high span first, then low span; At the same height, go far first and then come close; Lay on the same plane starting from the lower part.
▪ Roof laying direction:
▪ Lay parallel to the ridge direction with a slope of less than 3%.
▪ Lay parallel or perpendicular to the ridge direction with a slope of 3% to 15%.
▪ When the slope is greater than 15% or subjected to vibration, it is advisable to lay it perpendicular to the ridge direction.
▪ Parallel to the ridge, the overlapping joint should be laid in the direction of the flowing water. When perpendicular to the ridge, the joint should be laid in the direction of the dominant wind direction.