The INCA Knowledge Hub
Technical Guidance

As the recognised trade association for the UK external wall insulation industry INCA regularly publishes technical and best practice guidance documentation which can be freely downloaded in PDF format via the links below.

Further documents are scheduled for publication over the coming months and on an ongoing basis.

INCA Best Practice / Technical Guides

We would like to express oour thanks to the volunteer members of the INCA Technical Committee, SWIGA, EWI Consultants Ltd and the membership as a whole for their valuable contributions towards the publication of these industry defining guides.

INCA: EWI Best Practice Guides:

Best Practice Guide
EWI + Render Finishes

Best Practice Guide
EWI + Brick Slip Finishes

Best Practice Guide
EWI + Drained Cavities

INCA: EWI Technical Guidance Documentation:

TG-01: Fire Performance For EWI Systems

TG-02: Impact Resistance Of EWI

TG-03: Wind Load Design For EWI Systems

TG-04: Mechanical Fixings For EWI Systems

TG-05: EWI Maintenance Guidance Manual

TG-06: Weathering And Thermal Bridge Control

Official Documentation

Other official documents which are regarded as highly relevant to the external wall insulation industry are listed below and each one is available as a free download:

Regulatory Documentation:

Building Regs

Part L

PAS 2030:2023

PAS 2035:2023


If you have a technical question relating to external wall insulation and you’re unable to find the answer on our website then please feel free to contact us and we will consult with our technical team and respond accordingly. Simply complete and submit the form below or email us directly:

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