TS 8274

TS 8274 is a vocabulary standard for expansion joints in building construction, with a particular focus on external wall dilatations and the terms used to describe building joints. Its purpose is to establish a common technical language for designers, engineers and construction professionals working with these elements.

How joint terminology is organised

In building engineering, joints are deliberate discontinuities that allow adjacent parts of a structure to move in a controlled way or help relieve stresses within the building fabric. External wall dilatations are especially relevant at the façade and outer envelope, where movement may result from temperature variation, shrinkage, settlement and similar effects. This standard is concerned with the terminology used to describe those concepts, not with the physical design rules themselves, so its value lies in precise communication across drawings, specifications and technical discussions.

What this standard covers

Based on the supplied scope, TS 8274 covers the definitions used to describe building joints and their constituent elements and design. It is linked to ISO 2444:1974 as an equivalent source, which places it within an established international terminology framework adapted for national use. Vocabulary standards do not normally prescribe acceptance criteria or test methods; instead, they define terms so the same concept is understood consistently in practice.

• Provides common terminology for joints in building construction and external wall dilatations.
• Clarifies the language used for joint components and related design concepts.
• Supports consistent use of terms in drawings, specifications and project documents.
• Withdrawn standard; useful mainly as a historical terminology reference.