What is a price adjustment clause?
A price adjustment clause shares the risk of rising labour, fuel and material prices between client and contractor during the life of a contract.
What is a use class for timber?
A use class — formerly hazard class — describes how much moisture a timber component is exposed to, and so what durability it needs.
What is a risalit?
A risalit is a section of a facade that projects forward through its full height, usually at the centre or at the corners of a building.
What is sewage heat recovery?
Sewage heat recovery uses a heat exchanger and heat pump to extract warmth from wastewater in the sewer to heat buildings or a district network.
What is sewer rehabilitation?
Sewer rehabilitation restores an existing drain without replacing it, usually trenchlessly with a resin-impregnated liner cured in place.
Backup power at home: the complete buying guide for 2026
All your backup power options for a power cut compared: power station, generator, home battery and UPS. With costs, sizing the load and wiring it safely.
Choosing a backup power inverter: which inverter actually works during a blackout?
Which inverter works in a blackout? Grid-forming vs. normal inverter, backup box, transfer time and a clear step-by-step choice guide from Fred.
What is a sewer?
A sewer is a mostly underground pipe system that collects and carries away foul water and rainwater.
What is ring shake?
Ring shake is a separation in timber that follows a growth ring, caused by the annual rings coming apart; also called cup shake.
What is a Hoffmann kiln?
A Hoffmann or ring kiln is a continuous brick-firing kiln in which the fire travels from chamber to chamber while the bricks stay put.