Austin Williams explores the difference between fixings and fastenings with a focus on nails and screws.

Filmed entirely on location, this programme looks at the increasingly common phenomenon of vertical gardens, or living walls as they have become known.

We explore the hazards of moisture penetration in external walls and ways to avoid problems.

The replacement of the old British Standard BS 6651 with BS EN 62305 will have a significant impact on the design and installation of lightning protection structures. This programme explains why the new standard has been adopted and discusses its key points. The procedures associated with the new standard are examined, while Surge Protection Devices (SPDs) and Lightning Protection Zones (LPZs) are explored in detail.

Whether the ground floor of a house is suspended or filled, it will include either a solid slab or an oversite layer of concrete laid on compacted hardcore directly on the ground. Both hardcore and soil are potential sources of sulfates and other chemicals harmful to concrete. This programme investigates the hardcore components and soil conditions likely to contain sulfates, explains how concrete is affected by sulfate attack and looks at methods used to prevent such damage.

We start by hearing how the UK's network of 200 fundamental benchmarks all stem from a single 'mother' benchmark at Newlyn in Cornwall. We show how the network expanded and we learn why now, in this highly technical modern age, the humble benchmarks' days are over.

In this programme we discuss the tell-tale signs of a wood-boring insect infestation and describe how to tell the difference between the four main types of wood-boring beetle common to the UK.

The London Development Agency (LDA) and the Homes and Communities Agency (HCA) have launched a new, mapped database of London's brownfield land called The London Brownfield Sites Database (LBSD).

If you are building, selling or letting a non-domestic building, before practical completion can be granted the new occupier or owner must be supplied with an Energy Performance Certificate (EPC) which grades the building's energy efficiency. In this programme we visit the new flagship John Lewis Store in Stratford, to see how a non-domestic EPC survey is undertaken and what factors are key in influencing the final EPC grade.

This programme takes a look at two of the principal types of natural wastewater treatment systems.

This programme looks at the requirements, the timetable, and action points to help prepare for yet more legislation!

Energy derived from the tides is more predictable than wind energy and solar power. There are three main ways in which power can be generated: tidal barrages, offshore tidal lagoons or tidal stream farms. This programme focuses upon tidal stream energy.