Fen Calc Fencalc XA2021 Training
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Building Envelope Training

External Walls Compliance

Assess wall construction, thermal mass and insulation evidence for XA compliance.

3Text lessons
55 minutesReading time
EnvelopeCategory
SANSReference points
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Diagram for Wall Types
External Walls Compliance Wall Types

Lesson Roadmap

Work through the lessons in order, or continue from the next unfinished lesson.

Start
1 Wall Types Classify external wall assemblies. 15 minStart 2 Thermal Performance Understand R-value and thermal performance concepts. 20 minStart 3 Quality Control Avoid common documentation gaps. 20 minStart

What You Need Before Starting

A current drawing set or sample project to practise with. The project location, building type and storey information. Window, door, roof, wall, floor or services schedules where relevant. Supplier evidence for any performance values you plan to rely on. A notebook for assumptions, missing information and review questions.

What You Will Learn

Outcome 1Identify wall assembly types.
Outcome 2Understand mass and insulation implications.
Outcome 3Prepare wall compliance documentation.

SANS Reference Points

Use these as evidence prompts while studying. The training explains concepts, but the official standard remains the authority for project submissions.

Evidence point 1SANS 10400-XA:2021 clause 5.5: External walls
Evidence point 2SANS 10400-XA:2021 clause 3: R-value and CR-value definitions
Evidence point 3SANS 10400-XA:2021 Annex B: modelling conditions where applicable
This training is an original learning aid based on SANS 10400-XA:2021 concepts. It does not reproduce or replace the official standard. View resources