What is a horizontal pivot window?
A horizontal pivot window rotates about a horizontal axis at about mid-height: the top swings in and the bottom swings out. How it works, benefits and points of attention.
What is a tuile du nord tile?
A tuile du nord is a machine-pressed, flat clay interlocking roof tile with a rounded side lap that covers the next tile. Features, use and laying tips.
What is a cable-stayed bridge?
A cable-stayed bridge carries its deck on inclined cables that run straight to one or more pylons. How it works, cable layouts and the difference from a suspension bridge.
What is tuff stone?
Tuff is a light, porous natural stone formed from compacted volcanic ash. Where it comes from, its use in Romanesque churches, weathering and repair tips.
Insulating central heating pipes: the cheapest saving in the house
Insulating central heating pipes saves about 3 m³ of gas per metre a year. Which pipes to lag, the right size and thickness, bends and costs.
Soundproofing a timber floor against impact noise: how to actually get it quiet
Soundproofing a timber floor against impact noise? Mass, decoupling and flanking paths decide the result. Build-ups, weight, costs and a step-by-step plan.
What is a Tudor arch?
A Tudor arch is a low, flattened pointed arch drawn from four centres, typical of English Perpendicular Gothic and the Tudor style. How to recognise and use it.
What is a double tee slab?
A double tee slab is a precast concrete floor unit with two stems under a thin top flange. Suited to long spans and heavy loads, such as car parks.
What is a trumeau?
A trumeau is the central pier dividing a wide church doorway, but also the wall between windows or a mirror above a fireplace. Explanation and tips.
What is a truck mixer?
A truck mixer is a lorry with a rotating drum that carries ready-mix concrete from the plant to site. How it works, capacity and tips for homeowners.