Tanking is a coating that is applied to a wall to prevent moisture ingress.

A thermal bridge is created when a conductive material such as metal runs through insulating layers. An example of thermal bridging could be seen if you were to use a thermal imaging camera to view a rendered building where metal beads had been used. The image would highlight those areas where the heat is conducted from the inside to the outside via the thermal bridge created by the steel beads.

A thin coat bead is a bead with a small arris or shallow profile for use where a shallow render or plaster depth is required. Often used with acrylic or proprietory renders such as Weber, K-Rend or Monocouche.

A thin coat render is a render that is often used as part of an external wall insulation system. Mainly made from silicone or acrylic materials, it is applied as a finishing render and is usually coloured.

A through colour render is an external wall coating that is ready prepared with a pigment that gives it a colour that does not need painting.

A top coat is the final finishing layer of a multi layered wall coating.

Tyrolean is a render finish that has a spattered appearance. The pattern is achieved by spraying the top coat onto the wall.