What is out-of-plane loading?
Out-of-plane loading acts perpendicular to the face of a wall or panel, such as wind on a facade or the pull of an awning. Why masonry is weak this way and what to do.
What is an owl board?
An owl board is the triangular timber board with an owl hole at the apex of a thatched Dutch farmhouse roof. Its purpose, regional designs, materials and upkeep.
Fitting a Flat Roof Covering: EPDM or Bitumen, and How to Get It Watertight

Fitting a flat roof covering: choosing EPDM or bitumen felt, falls, upstand height, insulation and vapour control, a full step plan and real costs per m².
Insulating a roof from the inside: tackling a pitched roof yourself

Insulating a pitched roof from the inside: R-values, thicknesses, fitting the vapour control layer, step by step, costs and savings. No damp problems.
What is UHPC (ultra-high performance concrete)?
UHPC, ultra-high performance concrete, reaches compressive strengths of around 150 N/mm² or more and often contains steel fibres. Mix, uses and key points.
What is the UAV?
The UAV 2012 are the standard Dutch conditions of contract for construction works, comparable in role to FIDIC or JCT. What they cover, UAV-GC and tips.
What is the U-value?
The U-value is the thermal transmittance in W/(m²·K): how much heat escapes through a building element. How to calculate it, glazing values and tips.
What is a U-block?
A U-block is a U-shaped masonry unit used as permanent formwork for a lintel or ring beam. How it works, where it is used and practical tips.
What is a U-channel?
A U-channel is a steel beam with a U-shaped cross-section. The difference between UPN and UPE, typical uses and practical tips for choosing and fixing one.
What is a type approval?
A type approval shows that a building type meets the technical building rules, so not every project has to be checked again. How it works for modular homes in the Netherlands.
