Lateral pipe-lining method

A lateral-pile lining method for lining a lateral pipe that intersects a main pipe, comprising:

• providing a lateral pipe-lining material having a tubular resin-absorbing material impregnated with a curable resin and having a flange formed at one end of the tubular resin-absorbing material, an adhesive made of a thermosetting resin being applied onto the flange of the lateral pipe-lining material;
• disposing the flange of the lateral pipe-lining material on an expandable flange-pressing implement;
• and
• inserting the lateral pipe-lining material into the lateral pipe and curing the curable resin impregnated in the tubular resin-absorbing material to line the lateral pipe;
• wherein a heat medium is supplied to the expandable flange-pressing implement so as to expand the flange-pressing implement to press the flange of the lateral pipe-lining material into contact with a periphery of a lateral pipe opening of the main pipe so that a gap is not formed between the flange and the periphery of the lateral pipe opening of the main pipe, the heat medium being supplied so as to gradually heat the flange of the lateral pipe-lining material and the adhesive applied thereon, after which the adhesive is cured to thereby bond the flange to the periphery of the lateral pipe opening of the main pipe.