Fen Calc Fencalc XA2021 Training
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Walls study notes

External Walls Compliance

Assess wall construction, thermal mass and insulation evidence for XA compliance. These notes collect the course summary, SANS reference points, lesson prompts and key study reminders into one print-friendly page.

Course Outcomes

  • Identify wall assembly types.
  • Understand mass and insulation implications.
  • Prepare wall compliance documentation.

Lesson Summaries

Lesson 1 / 15 min

Wall Types

Classify external wall assemblies.

Objective: Group walls by construction type before checking performance.

Lesson 2 / 20 min

Thermal Performance

Understand R-value and thermal performance concepts.

Objective: Connect wall build-up to thermal performance evidence.

Lesson 3 / 20 min

Quality Control

Avoid common documentation gaps.

Objective: Prepare a wall compliance pack for review.

Common Mistakes To Avoid

  • Reporting a wall value without listing the complete wall build-up.
  • Missing thermal bridges, lightweight framing or insulation discontinuity.
  • Letting drawings, specifications and compliance notes describe different assemblies.