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Apply render to produce complex external surfaces

Reference
L/504/7910
Level
Level 3
Credit Value
26
Guided Learning Hours
182
 
Aim
The aim of this unit is to provide the learner with the knowledge and skills to be deemed trained to :
-interpret information and select and prepare the required resources
-apply materials to produce complex external rendered finishes


Learning Outcomes Assessment Criteria
The Learner Will The Learner Can
1 Know how to interpret information related to applying render to produce complex external surfaces.
  • 1.1 - State the potential hazards associated with applying render to produce complex external surfaces.
    - Including:
    - preventative measures.
  • 1.2 - Evaluate the different information sources used when applying render to produce complex external surfaces.
    -

    Including:
    - manufacturers' information, given specifications, drawings.

  • 1.3 - Explain the purpose of relevant information sources used when applying render to produce complex external surfaces.
  • 1.4 - Describe the appropriate methods of communicating with other team members.
2 Be able to interpret information related to applying render to produce complex external surfaces
  • 2.1 - Produce a risk assessment for applying render to produce complex external surfaces.
    -

    Including:
    - method of work.
    - manufacturers' technical information.
    - statutory regulations.
    - official guidance.

  • 2.2 - Use a range of sources to interpret and extract relevant information relating to applying render to produce complex external surfaces.
    -

    Including:
    - manufacturers' information, given specifications, drawings.

  • 2.3 - Check for conformity of the information from the given specification.
  • 2.4 - Calculate appropriate quantities of materials required for producing complex external surfaces.
3 Know how to select and prepare resources for applying render to produce complex external surfaces.
  • 3.1 - Describe the methods used to select materials used in conservation work.
  • 3.2 - Describe the types and characteristics of materials used for rendering.
  • 3.3 - Describe the types of standard and non-standard beads used in external work.
  • 3.4 - Describe the different types of decorative and textured finishes.
    -

    Finishes including:
    - modern and traditional, wet dash, Tyrolean, ashlar, dry dash, cottage texture, one-coat and proprietary finishes.

  • 3.5 - Explain why it is important to have compatibility between backgrounds and the render system.
  • 3.6 - Describe the correct mixing ratio and proportions for external rendering to ensure compatibility between render and background.
  • 3.7 - Describe the uses and characteristics of hydrated and hydraulic lime.
  • 3.8 - Describe the reasons for using reinforcement and binders.
    -

    Including:
    - modern and traditional.

  • 3.9 - Describe the effects that incorrect gauging and mixing could have on the render material.
  • 3.10 - Explain why additives are used when producing complex external surfaces.
  • 3.11 - Describe the use of bonding agents when producing complex external surfaces.
  • 3.12 - Describe the use of a range of hand and power tools to produce complex external surfaces.
    -

    Tools including:
    - mixers, tyrolean machines, mechanical hoists.

4 Be able to select and prepare resources for applying render to produce complex external surfaces.
  • 4.1 - Check that the materials for applying render to external surfaces are compatible, of the correct quality and meet the given specification.
  • 4.2 - Select the appropriate beads and trims in accordance with the given specification.
  • 4.3 - Select the appropriate reinforcing materials in accordance with the given specification.
  • 4.4 - Select the appropriate tools and equipment to apply render to complex external surfaces.
5 Know how to prepare for applying render to produce complex external surfaces.
  • 5.1 - Explain the personal protective equipment (PPE) requirements for applying render materials to produce complex external surfaces.
    -

    Including:
    - collective protective measures.
    - personal protective equipment (PPE).
    - respiratory protective equipment (RPE).

  • 5.2 - Explain how to protect the work and its surrounding area from damage in accordance with the given specification.
    -

    Including:
    - against damage from general workplace activities, other occupations and environmental conditions.

  • 5.3 - Explain procedures for handling and storing materials and renders in accordance with the given specification.
    -

    Including:
    - reasons for storing in date order.

6 Be able to prepare for applying render to produce complex external surfaces.
  • 6.1 - Select and use appropriate personal protective equipment (PPE) when applying render to produce complex external surfaces.
  • 6.2 - Protect the work and its surrounding area from damage in accordance with the given specification.
    -

    Including:
    - maintaining a clean work space, disposal of waste.

  • 6.3 - Store resources in a safe and appropriate manner in accordance with the given specification.
7 Know how to apply a range of one-, two- and three-coat finishes to complex external surfaces.
  • 7.1 - Explain how to check the quality of materials using appropriate site tests.
    -

    Site tests including:
    - silt tests, sieve tests.

    Quality including: colour, strength, consistency.

  • 7.2 - Describe the reason for and the method of site testing aggregates.
  • 7.3 - Explain how aggregates are assessed for suitability for external rendering.
  • 7.4 - Describe the common background preparation procedures and the effects on the work if they are not completed.
  • 7.5 - Describe the reasons for and the methods of forming bell casts.
  • 7.6 - Explain how to form external angles, reveals and expansion joints in rendered material by the use of beads.
  • 7.7 - Explain how to produce a range of plain, decorative and textured rendered finishes to external surfaces.
    -

    Finishes could include:
    - wet dash, Tyrolean, ashlar, dry dash, cottage texture, one-coat and proprietary finishes including quoins.

8 Be able to apply a range of one-, two- and three-coat finishes to complex external surfaces.
  • 8.1 - Prepare background surfaces prior to applying render to form complex external surfaces.
  • 8.2 - Gauge and mix rendering materials to the required consistency.
  • 8.3 - Apply one-coat, two-coat and three-coat rendering to block and brick backgrounds in accordance with the given specification.
    -

    Minimum of 3 from:
    - wet dash, Tyrolean, ashlar, dry dash, cottage texture, one-coat and proprietary finishes including quoins.

  • 8.4 - Prepare and fix metal lathing and trim in accordance with the given specification.
  • 8.5 - Produce plain, textured and decorative rendered finishes in accordance with the given specification.
    -

    Finishes including:
    - wet dash, Tyrolean, ashlar, dry dash, cottage texture, one-coat and proprietary finishes including quoins.

  • 8.6 - Protect and cure rendering to complex external surfaces on completion of the work.
  • 8.7 - Work at height from scaffold systems safely and in accordance with current legislation.
    -

    Including:
    - The Work at Height Regulations 2005.

Assessment guidance and/or requirements
This unit will be achieved in accordance with the additional guidance requirements as set out by the Awarding Organisation.

Qualifications offering this unit

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