What is a trotseerloodje?
A trotseerloodje is a small shield-shaped piece of lead soldered over nail heads in Dutch roof leadwork. Origins, purpose and tips for restoration.
What is trompe l’oeil?
Trompe l’oeil is a painting technique that makes a flat surface look three-dimensional. Uses in architecture and practical tips for painting one at home.
What is a squinch?
A squinch is a small niche-like arch or vault across the corner of a square room, creating an octagonal or round base for a dome. How it works and key examples.
What is a column drum?
A column drum is a cylindrical block of stone stacked with others to form a column shaft. How Greek builders joined drums, and the other meanings of drum.
What is a jack arch floor?
A jack arch floor is a row of shallow brick arches spanning between iron or steel beams. How it works, where you find it and what to check before alterations.
What is a trowel?
A brick trowel is the hand tool for picking up, spreading and cutting off mortar. Shapes and patterns, how it differs from a float or pointing iron, plus tips.
What is a trochilus?
A trochilus (scotia) is the deep concave moulding in a column base between two tori. Origin, position in the Attic base and how it differs from a cavetto.
What is three-ply plywood?
Three-ply plywood is a thin panel of three cross-laminated veneers. How it differs from multi-ply plywood and solid wood 3-layer panels, uses and tips.
What is a triumphal arch?
A triumphal arch is a free-standing monumental gateway commemorating a victory; in churches the term also means the arch between nave and chancel.
What is a poker vibrator?
A poker vibrator is an internal concrete vibrator that compacts fresh concrete by driving out trapped air. How it works, rules of thumb and common mistakes.