Calcium Silicate Insulation Germany — DIN EN 14306, Bauregelliste & TÜV

DIN EN 14306 — Calcium Silicate Product Standard

DIN EN 14306 is the German national adoption of the European standard EN 14306, which specifies requirements for factory-made calcium silicate (CS) thermal insulation products used in building equipment and industrial installations. This is the primary product standard referenced in German specifications, tender documents, and construction contracts for calcium silicate insulation.

The standard classifies calcium silicate products by temperature class (maximum service temperature), defines dimensional tolerances for boards, pipe sections, and segmented bends, and specifies how thermal conductivity (lambda values at mean temperatures) must be declared. It also establishes compressive strength classes (CS(10)Y through higher grades), dimensional stability under heat, and reaction to fire classification as mandatory declared properties.

• Scope: factory-made calcium silicate products for building equipment and industrial installations
• Thermal conductivity declared as lambda values at specified mean temperatures (e.g. λ_100°C, λ_200°C)
• Product types covered: flat boards, pipe sections, segmented bends, and custom-fabricated shapes
• Compliance verified through notified-body testing and Factory Production Control (FPC) certification

DIN 4102-1 — Building Materials Classification

DIN 4102 Part 1 is the German national standard for classifying the fire behaviour of building materials. It defines five classes based on performance in standardized fire tests:

• Klasse A1 (nichtbrennbar): Non-combustible materials — no contribution to fire at any stage. Calcium silicate achieves this highest classification.
• Klasse A2: Essentially non-combustible — negligible contribution to fire
• Klasse B1 (schwerentflammbar): Flame-retardant — limited contribution
• Klasse B2 (normalentflammbar): Normally flammable
• Klasse B3 (leichtentflammbar): Easily flammable — not permitted in construction

Mingfa calcium silicate products achieve Klasse A1 (nichtbrennbar) under DIN 4102-1 testing, confirming zero contribution to fire and full compliance with the most stringent German fire safety requirements for industrial and building insulation.

DIN 4102-4 & EN 13501-1 Comparison

DIN 4102 Part 4 extends classification to building components and construction assemblies, providing a tabulated listing of classified building materials and components with their fire resistance ratings. This remains widely referenced in German building regulations (Landesbauordnungen) and in specifications by German engineering firms.

In the European harmonization framework, EN 13501-1 has largely replaced DIN 4102-1 for CE marking purposes under the Construction Products Regulation (EU 305/2011). However, DIN 4102 classifications are still actively referenced in German regulations, particularly in the Bauregelliste (Building Rules List) and in specifications by German engineering consultancies. Mingfa maintains test documentation under both classification systems:

• EN 13501-1 Class A1 — the European harmonized classification used for CE marking
• DIN 4102-1 Klasse A1 — the traditional German classification still referenced in national regulations

AGI Q 135 — Arbeitsgemeinschaft Industriebau

The AGI Q 135 standard is published by the Arbeitsgemeinschaft Industriebau e.V. (AGI), the preeminent German industrial construction association. AGI standards and guidelines are widely adopted across German-speaking Europe as the reference framework for industrial building design, construction, and insulation engineering.

AGI Q 135 specifically addresses thermal insulation for industrial equipment, piping, and vessels. It provides detailed technical requirements for insulation systems in industrial environments, including material selection criteria, minimum insulation thicknesses, application methods, and quality assurance provisions. Calcium silicate insulation is specified under AGI Q 135 for high-temperature applications where its combination of thermal performance, non-combustibility, and mechanical strength is required.

Key aspects of AGI Q 135 relevant to calcium silicate specification:

• Thermal insulation design parameters for industrial piping and equipment operating at elevated temperatures
• Material specification requirements aligned with DIN EN 14306 product standards
• Quality assurance and workmanship requirements for industrial insulation installation
• Referenced in German engineering specifications, EPC contracts, and industrial project tender documents

German engineering specification practices typically follow a hierarchical approach: the AGI guideline defines the application requirements, the DIN EN product standard defines the material properties, and the DIN 4102 classification confirms the fire safety performance. Mingfa's technical documentation is structured to address each tier of this specification hierarchy.

Logistics, Documentation & Technical Support

Mingfa has established reliable supply chain pathways from our manufacturing facility in Laizhou, Shandong to major German ports. The standard shipping route from Qingdao Port to Hamburg/Bremerhaven takes approximately 35–40 days via container vessel, with regular sailings available from multiple carriers. Our export team handles all customs documentation, including EUR.1 certificates of origin, commercial invoices, packing lists, and bill of lading.

Declaration of Performance (DoP) and CE Marking: Per the Construction Products Regulation (EU 305/2011), Mingfa provides EN 14306 Declarations of Performance for all calcium silicate products supplied to the German market. These DoPs declare the product's essential characteristics — thermal conductivity, compressive strength, dimensional stability, and reaction to fire — as determined by notified-body testing.

Fire test documentation: The following fire-related documentation is available for German project submissions:

• DIN 4102-1 A1 test reports from accredited testing laboratories confirm non-combustible classification under the German national standard
• EN 13501-1 Classification Reports issued by EU-notified bodies confirm Class A1 under the European harmonized system
• TÜV or other EU-notified body third-party testing is available upon request for specific project requirements

Factory Production Control (FPC): Mingfa operates a comprehensive Factory Production Control system in compliance with EN 14306 Annex A requirements. FPC documentation covers incoming raw material inspection, in-process quality checks at each manufacturing stage, final product testing against declared properties, and batch traceability records. FPC certificates and audit reports are available for customer review.

German-language technical data sheets are available upon request. For projects requiring abP (allgemeines bauaufsichtliches Prüfzeugnis) or project-specific testing through German notified bodies, Mingfa's technical team works directly with the client's engineering consultant to coordinate the required testing program.

Does Mingfa calcium silicate carry an abP (allgemeines bauaufsichtliches Prüfzeugnis) for the German market?

An allgemeines bauaufsichtliches Prüfzeugnis (abP) is a German national technical approval issued by a recognized testing body for construction products that are not fully covered by a harmonized European standard. Calcium silicate products covered by DIN EN 14306 with a valid Declaration of Performance and CE marking generally do not require a separate abP for standard applications, as the harmonized standard route under the EU Construction Products Regulation applies.

However, for non-standard applications or where German building regulations specifically require national verification (e.g., certain fire protection applications not fully covered by EN 13501-1 classification alone), Mingfa can facilitate abP testing through cooperation with a German-accredited testing institute such as MPA (Materialprüfungsanstalt) or DIBt (Deutsches Institut für Bautechnik). Contact our technical team with your specific application requirements to determine whether CE marking is sufficient or if a supplementary abP is needed.

What is the difference between DIN EN 14306 and AGI Q 135 for calcium silicate specification?

DIN EN 14306 is a product standard that defines the technical requirements, test methods, and declaration rules for calcium silicate insulation products. It specifies what properties a product must meet and how those properties must be measured and declared. It is part of the European harmonized standards system and forms the basis for CE marking.

AGI Q 135 is an application standard published by the Arbeitsgemeinschaft Industriebau that addresses how thermal insulation systems should be designed, specified, and installed in industrial environments. It references product standards (including DIN EN 14306) as the basis for material selection but goes further to define application-specific requirements such as insulation thickness calculation, system design for different operating temperatures, and installation workmanship standards.

In German engineering practice, the two standards are complementary:

• DIN EN 14306 answers "What is the product and what properties does it have?"
• AGI Q 135 answers "How should the insulation system be designed and installed using this product?"

Mingfa provides documentation supporting compliance with both standards: product data sheets and DoPs per DIN EN 14306, and application guidance aligned with AGI Q 135 principles.