Constructing a Cavity Wall

Overview

Framework:
RQF
Level:
Level 1
Unit No:
H/618/3308
Credits:
6
Guided learning hours:
60 hours

For the full unit details, please download the latest version of the qualification specification. This is available for download on the relevant qualifications page.

Unit Learning Outcomes

To view the assessment criteria and any additional content, please expand the relevant learning outcome below.

1 — Be able to use hand tools required to construct a cavity wall. 

Hand tools

  • mortar trowel
  • mortar board
  • pointing trowel
  • string line
  • profile

Demonstrate

  • the rolling or mortar
  • application mortar
  • pointing a joint
  • setting a string line

Maintaining hand tools

  • cleaning tools
  • storage of tools
  • maintenance of tools

Assessment Criteria

  • 1.1

    Select appropriate hand tools and equipment required for a specified task. 

  • 1.2

    Use hand tools and equipment correctly and safely for a set task.

  • 1.3

    Clean, maintain and store tools correctly. 

2 — Be able to identify relevant materials used for cavity walling. 

Types of masonry

  • facing bricks
  • common bricks
  • types of blockwork used in cavity walls

Damp proof course

  • traditional: lead, bitumen
  • modern: plastic, polythene
  • position of dpc

Wall Ties

  • the function of a wall tie
  • position of wall ties
  • basic types

Assessment Criteria

  • 2.1

    Identify a suitable brick and block type used for cavity walling.

  • 2.2

    Identify types of modern Damp Proof Course (DPCs). 

  • 2.3

    Identify wall ties used in cavity construction. 

3 — Be able to carry out activities required when constructing a cavity wall. 

Demonstrate

  • the use of a mortar trowel in laying a bed of mortar
  • the cutting of a brick to a half brick
  • the use of a pointing trowel in finishing a joint

Assessment Criteria

  • 3.1

    Apply basic trowel skills.

  • 3.2

    Produce neat and tidy cuts to masonry. 

  • 3.3

    Point mortar joints to a given finish.

4 — Be able to construct a cavity wall. 

Construct a cavity wall to given dimensions

  • setting out the wall in dry bond, 4 blocks long, 3 blocks high
  • laying courses, plumbing line and level
  • checking dimensions
  • pointing finished work

Assessment Criteria

  • 4.1

    Follow instructions to construct a cavity wall

  • 4.2

    Set out, dry-bond, gauge, level, plumb, jointing finish to standards and tolerances. 

5 — Be able to clear work areas following construction to a cavity wall. 

Safe working environments

  • cleaning and good housekeeping
  • storage of tools
  • correct disposal of waste materials

Assessment Criteria

  • 5.1

    Clean and store tools in line with safe practice. 

  • 5.2

    Clean work areas so that is is free from debris. 

  • 5.3

    Dispose of or recycle waste materials following required health, safety and environmental procedures.