What is a shield wall?
A shield wall is a massive defensive wall protecting a castle on its most exposed side. In vaulting, the Dutch term also means the wall area under a wall rib.
What is a perched water table?
A perched water table is groundwater held up on a low-permeability layer above the main water table. What it means for basements, soakaways and building work.
What is a decorative gable truss?
A decorative gable truss (Dutch: schijnspant) is a mostly timber feature in a gable that looks like a roof truss but is mainly ornamental. Features and upkeep.
What is a false facade?
A false facade is a front that is not the structural outer wall but usually stands in front of it. Why it is used and what to watch for.
What is apparent resistivity?
Apparent resistivity is a kind of average electrical resistivity of the ground, measured in a geoelectrical survey. How it is measured and what it is used for.
What is an anchor bar?
An anchor bar is the bar on the outside of a wall that passes through the eye of a wall tie rod and clamps the anchor against the masonry. How it works and what to check.
What is a crack?
A crack is a break or split in a material or structure. How to recognise, measure and assess cracks in walls and floors, and when to call in an expert.
Power station vs home battery vs generator: the honest backup power buying guide (2026)
An honest comparison of power station, home battery and generator for backup power: cost, capacity, noise, safety and a step-by-step choosing plan.
Building a Pool House: The Complete Guide to Building Your Own
Building your own pool house? Learn all about permits, foundation, structure, pool equipment and costs. With a step-by-step plan and cost table.
What is a gusset plate?
A gusset plate is a steel or timber plate that joins several members at a node, for example in a truss or roof frame. How it works and what to watch for.