WATERPROOF LAYER AND WATERPROOF METHOD USING A SELF-ADHESION TYPE COMPOSITE SHEET

摘要

A rooftop waterproofing layer and a rooftop waterproofing method using a self-adhesion type composite waterproof sheet are provided to increase durability of a building waterproof the rooftop of a building by waterproofing the rooftop of a building using self-adhesive type composite waterproof sheets, and to have a complex function of dew prevention, sound insulation and thermal insulation. A rooftop waterproofing method using a self-adhesion type composite waterproof sheet comprises the steps of: washing at high pressure or adjusting a concrete base material(10) of the rooftop of a building; forming a dew prevention layer(20) on the surface of the washed or adjusted concrete base material; forming a primer layer(30) by applying and curing primer on the dew prevention layer; forming a primary waterproofing layer by attaching plural self-adhesion type composite waterproof sheets(100) on the primer layer; forming a waterproof coating layer(50) by impregnating more than 100 percent waterproof coating materials on a non-woven fabric layer of the self-adhesion type composite waterproof sheet; and forming a top coating layer(60) by applying coating materials having strong weathering resistance on the waterproof coating layer.