The document describes different types of wall constructions including cavity brick walls, timber frame walls, insulated brick block walls, stone walls, and render finishes. Cavity brick walls have an inner and outer brick leaf with insulation between and ties connecting them. Timber frame walls use timber studs with various outer finishes and insulation incorporated. Insulated brick block walls consist of a brick outer leaf, block inner leaf, and insulation fixed to the inner leaf. Stone walls can use natural or manmade stone with an appropriate inner leaf. Render finishes provide weatherproofing and decoration applied in layers over a wall surface.