EN 826 — Determination of Compression Behaviour (Thermal Insulation Products)

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EN 826 is the European test method for the compression behaviour of thermal insulating products used in building applications. To match this to your program, talk with our team.

What EN 826 Covers

It determines the compressive strength or stress at a defined deformation for thermal insulation boards such as foams and mineral wool, supporting product classification and building use.

How the Test Is Run

An insulation specimen is compressed between platens at a controlled rate, and the compressive stress at a specified relative deformation, or at failure, is recorded.

Why It Matters

Compression behaviour governs where an insulation product can be used under load; a suitable low-force frame and accurate deformation measurement are needed.

Reading the Designation

Cited as EN 826 with its edition year. Confirm the edition and specimen requirements before finalizing fixtures. To configure a compression setup, request a quote.

Related Standards

ISO 3386 covers compression stress-strain of flexible cellular materials.

Request a Quote

Setting up compression testing of insulation products? Request a quote and our team will help you build a system matched to your product type and load range.


TensileMill CNC products for EN 826

Our specimen-preparation systems and testing equipment compatible with EN 826:


Set up EN 826 testing with TensileMill CNC

TensileMill CNC designs and builds the systems labs use for standards-based mechanical testing. For this work we supply universal testing machines with compression platens and anti-buckling fixtures. Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.