Walls: – Solid external walls, on brick foundations. No damp course. (Damp courses were gradually introduced in the 1920s).
Roof: – Pitched timber roof, sheltered with slates or clay tiles, with no underfelt.
Ground floors: – Solid floor to kitchen and storage areas, and of suspended timber to further rooms and upper floors.
No Sarking felt or insulation and nail fatigue pre1930s
1930s -1940s Construction
Walls: – Cavity external walls were increasingly introduced, erected on concrete strip foundations with damp courses.
Roof: – Roofs underfelt, but still uninsulated.
Ground floors: – Bathrooms still positioned on the ground floor, usually directly off the kitchen.
1945-1950 Construction (Non-Traditional)
Walls: – Frame construction, clad with a variation of materials including asbestos, steel, aluminium, and concrete, traditional brickwork. Metal casement windows common in use.
Roof: – Trussed roofs of very low pitch.
Partitions: – Fibre and plasterboards were used for walls and ceilings.
Post 1930s, introduction of breathable roof membrane.
Walls of a similar construction to 1930- 1940s although flat roofs were more common, constructed from either timber or concrete, felt or asphalt-covered, with parapet walls to the edges. 1950s, plastic gutters and pipes were accessible.
Services: – By the 1960s, many authorities started to introduce central heating systems.