Materials and methods for lining a chimney

A method of relining a chimney flue, comprising:

• a) coating an innermost surface of a chimney flue with a first layer of a flowable refractory material, thus providing a wet and sticky surface on the innermost surface of said chimney flue;
• b) providing an insulating sleeve on the wet and sticky refractory surface in a manner such that the insulating sleeve adheres to the wet and sticky refractory surface;
• c) subsequently coating an inner surface of said sleeve with a second layer of flowable refractory material effective for hardening on the sleeve to provide a refractory surface on the inner surface of the sleeve;
• and
• d) allowing both layers of flowable refractory material to harden, thus providing a hardened relining comprising a first refractory layer, an insulating layer, and a second refractory layer, on the innermost surface of the flue.