INCA, the recognised trade association for the external wall insulation (EWI) industry in the UK, have published a new technical guidance document for the installation of external wall insulation systems incorporating a drained cavity. The guide is designed to ensure that EWI systems are fit for purpose and installed to the very highest of standards.
The third of 3 key guidance documents published over the last 12 months this industry technical guide defines the installation process, standardises common details, and provides useful information on the various different materials and components that make up a finished system.
The document is intended as a comprehensive introduction to drained cavity EWI systems as the requirements for such systems differ significantly to those of other EWI methodologies.
Drained cavity systems are specifically designed for projects within the UK which involve the application of an external wall insulation system to a frame structure (timber or steel frame) and for which the purpose of use is solely residential and are a requirement of building warranty companies.
Vented Cavity System
Top Hat Cavity Spacer
Vented Cavity System
Track and Rail
Vented Cavity System
Double Board System
The introduction of a cavity within an EWI system presents many challenges and essential complex detailing relating to the spread of fire and / or smoke and the adequate tracking of moisture should the system suffer unintended water ingress.
It is of course also essential that a vented drained cavity system has the appropriate third-party certification.
The guide itself covers all aspects of a drained cavity external wall insulation system including:
- An introduction to drained cavity EWI systems
- The different system types and options
- The components specific to these systems
- Links to additional generic guidance and technical documentation relating to EWI systems
Whilst not a full best practice guide this technical guidance document is intended to provide a comprehensive introduction to drained cavity EWI systems and to link to additional documentation to ensure compliance to regulations and to support installation best practice.
Examples Of Projects Incorporating A Drained Cavity EWI System:
Devonshire Mansions
K Systems & Fullers Plastering
Soho House
SPS Envirowall & Simbi Ltd
Pembroke Dock
Sto Ltd
Albion Mills
K Systems & QFF
John Sparrow, Executive Director of INCA, said:
“INCA and its members are committed to improving standards in EWI through the development of technical guidance and the sharing of best practice. The publication of this new technical guidance document reinforces the fact that INCA members are leading the way in EWI standards and innovation and remain uniquely placed to represent the industry by delivering the highest quality and service for clients.”
Jane Wiltshire, Company Secretary for INCA added:
“INCA members are required to meet a strict membership criteria which, alongside proven experience and a commitment to best practice, includes a robust training plan, a formal quality management system and an accredited health and safety program – all designed to give clients using an INCA member the confidence that they are working with a highly reputable organisation that meet the recognised standards of competence.”
“The development of this guide demonstrates that INCA and its members are leading the way as the recognised trade association for the EWI industry in the UK. It’s an essential resource for everyone involved in external wall insulation and represents another step forward at a time of significant opportunity across many sectors of the market.”
LINKS
Download the INCA Technical Guidance: EWI Systems Incorporating A Drained Cavity
Download the INCA Best Practice Guide: EWI With Render Finishes
Download the INCA Best Practice Guide: EWI With Brick Slip Finishes
For more technical downloads visit the INCA Technical Hub
FURTHER INFORMATION:
Email: info@inca-ltd.org.uk
Telephone: 0330 124 6585
Notes to Editors:
About INCA
- INCA is the recognised trade association for the External Wall Insulation (EWI) industry in the UK, representing system designers, specialist installers, key component suppliers and service providers.
- INCA has proven longevity as a trade body dating back over 40 years. Current membership is 88, please refer to the INCA website for a current breakdown of our membership types: contractors, manufacturers, and associates.
- INCA’s vision: To lead the UK external wall insulation industry.
- INCA’s mission: To represent members of the External Wall Insulation industry through technical excellence, education, effective collaboration, strong marketing, communications, and member benefits.