Eurowall+
In 2015, Recticel’s premium Eurowall+ cavity wall insulation was launched and won British Board of Agrement (BBA) approval.
The PIR Eurowall+ product was launched to help architects and specifiers meet current Building Regulations without them having to amending existing designs.
A U-value of 0.18 W/m²K can be achieved in new-build constructions using 90 mm Eurowall+ within a 100 mm cavity. This meets the requirements of Part L1A England 2013 and Part L1A Wales 2014, meaning that existing designs can be retained to avoid reducing room sizes which could make the properties less attractive to prospective buyers.
Existing designs can also be retained without increasing building footprints which has the potential to reduce the number of properties on a site, making development less attractive for house builders.
Also manufactured at 75 mm for 85 mm cavities, 115 mm for 125 mm cavities and 140 mm for 150 mm cavities, Eurowall+ features a unique tongue and groove joint on all four sides to ensure the boards lock tightly together to minimise heat loss through thermal bridging. As well as improved air tightness, this also offers additional protection against wind-driven rain.
The high performance boards also feature new facing technology which reinforces their structural integrity. One side uses a low-emissivity facer, the other an alkali-resistant facer.
Eurowall+’s compact design leaves space for conventional bricklaying techniques, with enough room to 'roll' the outer leaf bricks into place so that bricklayers’ work takes the same time to complete.
For more information, see Recticel Insulation
Featured articles and news
Homes, landlords. tenants and the new housing standards
What will it all mean?
The Architectural Technology podcast: Where it's AT
Catch-up on the latest episodes.
Edmundson Apprentice of the Year award 2026
Entries now open for this Electrical Contractors' Association award.
Traditional blue-grey slate from one of the oldest and largest UK slate quarries down in Cornwall.
There are plenty of sources with the potential to be redeveloped.
Change of use legislation breaths new life into buildings
A run down on Class MA of the General Permitted Development Order.
Solar generation in the historic environment
Success requires understanding each site in detail.
Level 6 Design, Construction and Management BSc
CIOB launches first-ever degree programme to develop the next generation of construction leaders.
Open for business as of April, with its 2026 prospectus and new pipeline of housing schemes.
The operational value of workforce health
Keeping projects moving. Incorporating unplanned absence and the importance of health, in operations.
A carbon case for indigenous slate
UK slate can offer clear embodied carbon advantages.
Costs and insolvencies mount for SMEs, despite growth
Construction sector under insolvency and wage bill pressure in part linked to National Insurance, says report.
The place for vitrified clay pipes in modern infrastructure
Why vitrified clay pipes are reclaiming their role in built projects.
Research by construction PR consultancy LMC published.
Roles and responsibilities of domestic clients
ACA Safety in Construction guide for domestic clients.
Fire door compliance in UK commercial buildings
Architect and manufacturer gives their low down.























