Construction Measures for Waterproof Coil in Winter
2. Master the hot melt paving points. Hot melt coil construction requirements of the heating width should be uniform, heating nozzle from the coil surface to be appropriate, 0.5m or so. Winter construction temperature is low, hot-melt time than the room temperature to be more, hot-melt to the surface of the membrane is bright, or melting is not enough. Such as beyond the degree of light overheating melting, the polymer modified asphalt easy to aging zoom, adverse bonding, but can not penetrate burned, grasp the hot melt to be strong bonding. When the sheet is rolled, the seam must be spilled over the adhesive to verify that the paste is tight, and the spilled adhesive is scrapped and the necessary measures to strengthen the seam. Coil large hot melt paving the same attention should be paid to the air inside the coil.
High polymer modified asphalt waterproofing membrane to hot melt construction is more simple, the construction temperature can be within -10 ℃.
1. Base treatment agent to be volatile completely, full. Winter construction often use solvent-based treatment agent, one is free from frozen, the second is easy to operate. Low temperature in winter, solvent evaporation slow, so should strictly control the solvent drying time, winter in 10h above the basic volatile full, finished, and then arrange the hot melt coil process to prevent the fire.
3. Do the seam and the end of the handle. In order to improve the reliability of the winter construction, to prevent the waterproof layer after the hot-melt paving seam with the possibility of seaming, requiring the mouth and the end of the mouth are sealed with sealing material to improve the waterproof impermeability.
