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Last updateMon, 13 Jul 2026 9am

New clarity given for use of air admittance valves externally

Drainage ventilation expert Studor has responded to market confusion about Air Admittance Valves (AAVs) and whether they can be used externally.

“There does seem to be confusion in the market and we’re frequently asked whether AAVs are suitable for exterior use,” comments Studor’s technical director Steve White. “Both our own Studor Maxi-Vent, as well as the Wavin branded OsmaVent 110, can be used externally. The latest BBA Agrément Certificates clarify this and specifically refer to their external use.”

Read more: New clarity given for use of air admittance valves externally

Farrow & Ball gutter paints transform modern and traditional homes

Why Cast Iron?

Throughout the UK you’ll find rainwater guttering and downpipes in cast iron on many heritage and period properties. It is incredibly strong, last for decades and is 100% recyclable. If properly installed and maintained it will enhance the properties it protects by looking timeless, authentic and beautiful for over 100 years.

If neglected and exposed to the elements without proper protection the characteristics that make it such a great eco choice, its recyclability, become its weakness – that process of natural recycling begin with rusting, then flaking and eventually end in disintegration.

Read more: Farrow & Ball gutter paints transform modern and traditional homes

The hidden costs of planning: Council Tax

Members of the House Builders Association (HBA) – the house building division of the National Federation of Builders (NFB) – have worked closely with Government to deliver policies ensuring better place-making such as neighbourhood planning. However, the actual cost of the planning process remains an impressive obstacle yet to be tackled in a meaningful manner.

Whilst preparing our reply to the Government’s Housing White Paper, the HBA would like to draw attention to the hidden costs facing house builders when building the homes that the UK desperately needs. In our first installment, we will be analysing council tax.

Read more: The hidden costs of planning: Council Tax

Demo Expo 2017 –A free day out to the UK’s Biggest and Best Demolition Show!

The third edition of the joint National Federation of Demolition Contractors and Institute of Demolition Engineers event -Demo Expo - will be running this summer at a location close to the offices of the NFDC in Hertfordshire, at the Herts Showground.

This biennial event last ran in 2015 with over 50 exhibitors at the site of J Mould in Reading, where beautiful weather helped to secure a 4,000 strong crowd to the 2-day event. This year’s show has been extended to a 3-day event to include Trade Days on 22-23 June, plus a Family Day on Saturday 24th June.

Read more: Demo Expo 2017 –A free day out to the UK’s Biggest and Best Demolition Show!

CPA launches University Engagement Programme

The Corrosion Prevention Association, one of the associations that comprise the Structural Concrete Alliance, is piloting a University Engagement Programme at Coventry University. The scheme aims to raise awareness and understanding of corrosion issues in infrastructure and to encourage learning in the subject.

With over 50% UK construction work carried out in the repair, rehabilitation and upgrading of existing structures, or buildings, the Association hopes to create a link between employers and students and to ensure that students will have the available resources for the prevention of corrosion. 

Read more: CPA launches University Engagement Programme