Inject, blow and spray insulation to internal walls

URN: COSVR815
Business Sectors (Suites): Insulation and Building Treatments (Construction)
Developed by: Construction Skills
Approved on: 30 Aug 2020

Overview

​This standard is about installing injected, blown and sprayed insulation to walls, interpreting information, adopting safe, healthy and environmentally responsible work practices, selecting and using materials, components, tools and equipment

This standard is for people working in the occupational area of insulation and building treatments and can be used by installers, supervisors and managers


Performance criteria

You must be able to:

*P1 * interpret the given design information relating to the work and resources to confirm its accuracy, completeness and relevance to the building type, fabric and condition for the following:
1.1   drawings
1.2   specifications
1.3   schedules
1.4   method statements
1.5   risk assessments
1.6   suppliers and manufacturers’ information
1.7   data sheets

P2  comply with the given, relevant legislation, standards and official guidance to carry out your work and maintain safe and healthy work practices relating to the following:
2.1   methods of work
2.2   safe use of health and safety control equipment
2.3   safe use of access equipment and harness systems
2.4   safe use, storage and handling of materials,

        tools and equipment
2.5   operative maintenance of installation equipment 

2.6   specific risks to health including mental health
2.7   specific risks associated with ventilation and

        combustion appliances

P3   select the required quantity and quality of resources for

       the methods of work
3.1   check the suitability, compatibility and characteristics of

        the materials, components and finishes and determine if

        they are moisture open or moisture closed and their impact

        on the building
3.2   record and report issues or defects
3.3   select tools and equipment

P4   comply with organisational procedures to minimise the risk

       of damage to the work and surrounding area by:
4.1   protecting the work and its surrounding area from damage
4.2   maintaining a safe, clear and tidy work area
4.3   disposing of waste in accordance with current legislation

P5  comply with the given contract information to carry out the

      work efficiently to the required specification by the following:
5.1 demonstrate work skills to measure, mark out, fix and finish,

      position, seal and secure

5.2 carry out external and internal pre-installation check, assessing,

      recording and reporting issues to include:

      - suitable access

      - property suitability

      - structural integrity

      - dampness

      - decay

      - vents and ventilation

      - services (gas, electric, water, media cables)

5.3 use and maintain all work tools and equipment

5.4 check, record and report issues with construction ventilation,

      flues, chimneys and combustion air ventilators pre and post

      installation

5.5 fit breather membrane and vapour control layers

5.6 assemble and operate installation processing equipment in line

      with manufacturers and system manuals

5.7 prepare and install Internal wall insulation system to given

      system designer specification, method statement and the

      required standard using at least two of the following methods to

      given working instructions
      - injected
      - blown
      - sprayed

5.8 calibrate equipment to measure density, flow and quality tests to

      ensure they are in line with manufacturers specifications and

      material requirements

5.9 protect and reinstate, access routes, existing fixtures and fittings

      (carpets)

5.10 remove, replace and reinstate skirting, coving and cornices,

      radiators and electrical sockets

5.11 carry out repairs after installation

5.12 clean and disassemble installation processing equipment and

        pack away for transportation

5.13 handover and sign off to the customers satisfaction

5.14 carry out post installation checks

*P6   *complete your work within the estimated, allocated time

       and performance requirements of the system design, method

       statement and the required standard


Knowledge and Understanding

You need to know and understand:

Performance Criteria 1
Interpretation of information
K1.  why organisational procedures have been developed and how

       they are implemented

K2.  types of information, their source, accuracy, completeness 

       and how they are interpreted in relation to:
2.1   drawings
2.2   specifications
2.3   schedules
2.4   method statements
2.5   risk assessments
2.6   design
2.7   standards
2.8   suppliers and manufacturers' information
2.9   data sheets
2.10  official guidance
2.11  current legislation and regulations governing buildings

K3. the importance of organisational procedures to solve problems

      and why it is important to follow them

Performance Criteria 2
Safe work practices
K4. relevant, current legislation, standards and official guidance and

      how they are applied

K5. the types of fire extinguishers and how and when they are used

      in relation to water, CO2,foam, powder

K6. how emergencies should be responded to in accordance with

      organisational authorisation and personal skills in relation to:

6.1   fires, spillages, injuries
6.2   emergencies relating to occupational activities
6.3   identification of and reporting of asbestos containing materials

K7. the organisational security procedures for tools, equipment and

      personal belongings in relation to:
7.1   site
7.2   workplace
7.3   siting and location of vehicles
7.4   company
7.5   customer
7.6   access equipment
7.7   material and waste storage
7.8   the general public

K8.  how to report risks and hazards identified by the following:
8.1   risk assessment
8.2   personal assessment
8.3   methods of work
8.4   suppliers and manufacturers' technical information
8.5   data sheets
8.6   statutory regulations
8.7   official guidance
8.8   Control of Substances Hazardous to Health (COSHH)

K9.  the accident reporting procedures and who is responsible for

       making the report

K10. why, when and how health and safety control equipment

        identified by the principles of prevention should be used in

        relation to:
10.1  collective protective measures
10.2  personal protective equipment (PPE)
10.3  respiratory protective equipment (RPE)
10.4  local exhaust ventilation (LEV)

K11.  environmentally responsible work practices to meet current

         legislation, standards and official guidance when dealing with

         potential accidents, health hazards and the environment in

         relation to:
11.1   below ground level
11.2   confined spaces
11.3   at height
11.4   tools and equipment
11.5   materials and substances
11.6   movement and storage of materials by manual handling and

          mechanical lifting

Performance Criteria 3
Selection of resources
K12.  why the characteristics, compatibility, quality, uses,

         sustainability, limitations and defects associated with the

         resources are important and how defects should be rectified

K13.  the organisational procedures to select resources, why they

         have been developed and how they are used

K14.  how to confirm the resources and materials conform with the

         specification

K15.  how the resources should be used and how any problems

         associated with the resources are  reported in relation to:
15.1 protective sheeting
15.2 masking materials
15.3 warning signs
15.4 vent sleeves
15.5 insulation materials
15.6 fixings and adhesives
15.7 vapour control and breather membranes
15.8 finishing board and coat
15.9 combustion vents
15.10 all work tools and installation equipment

K16.  how to identify the hazards associated with the resources and

         methods of work and how they are overcome

K17.  how to calculate the quantity of materials, length, thickness,

         area and wastage associated with the method and procedure

         to Inject, blow and spray insulation to internal walls

Performance Criteria 4
Minimise the risk of damage
K18.  the importance of protecting the work and its surrounding

         area against the risk of damage

K19.  how to protect work and its surrounding area from damage by

         general workplace activities, other occupations and adverse

         weather conditions and how to minimise damage to existing

          building fabric

K20.  why and how the disposal of waste must be carried out safely

         in accordance with the following
20.1   current legislation
20.2   environmental responsibilities
20.3   organisational procedures
20.4   suppliers and manufacturers' information
20.5   data sheets
20.6   statutory regulations
20.7   official guidance

K21.  why it is important to maintain a safe, clear and tidy work

         area

**

Performance Criteria 5**
Meet the contract specification
K22.  how the methods of work to meet the specification, are carried

         out and how problems are  identified and reported by the

         application of knowledge for safe, healthy and

         environmental  work practices, procedures and skills relating

         to the method and area of work

22.1 the suitability, compatibility and characteristics of the materials,

        components and finishes, and determine if they are moisture

        open or moisture closed, their impact on the building and

        their appropriateness to the design and physical application

22.2 how to record and report issues or defects with the materials,

        components and finishes

22.3 why it is important to carry out external and internal pre-

        installation checks

22.4 how to carry out external and internal pre-installation checks,

        assessing, recording and reporting issues to include but not

        limited to:

        - suitable access
        - property suitability
        - structural integrity
        - dampness
        - condensation
        - penetrating damp
        - rising damp
        - decay 
        - vents and ventilation 
        - services (gas, electric, water, media cables)
        - architectural features 
        - condition of down pipes
        - roof overhangs and gutters 
        - external and internal finish condition 
        - wall moisture content 
        - damp proof course height above floor level 
        - condition of ground and suspended floor joists     

22.5 why it is important to ensure that all necessary repairs are

        completed prior to installation

22.6 how to identify thermal bridges and understand solutions and

        limitations

22.7 the implications for party wall thermal bridge

22.8 how and why it is important to recognise the procedures check,

        record and report issues with construction ventilation, flues,

        chimneys and combustion air ventilators pre and post

        installation

22.9 how to check for hidden utilities

22.10 how to recognise, record and report the key issues that may

          inhibit commencement of the work including but not limited

          to:
         - condition of building fabric
         - identification of any areas of potential water penetration
         - visibility and completeness of damp proof course
         - condition of window and door seals
         - height of internal floors in relation to external floor height
         - condition of roof
         - damaged or spalled brickwork
         - drainage and down pipes
         - protection and existence of sub floor ventilation
         - cavity width and identification of any debris
         - electrical cables, media cables, junction and meter boxes,

           signal receiving equipment
         - flues, gas pipes, chimneys and combustion air ventilators
         - identification of protected wildlife (nesting birds, bees, bats)

22.11 how to identify when specialist skills and knowledge are

          required and report accordingly including but not limited to:

          - fire safety

          - electrical

          - media cables

          - signal receiving equipment

          - junction boxes

          - asbestos

          - Radon

          - heritage

          - architectural and archaeological features

          - ecology

          - ventilation

          - rot

22.12 the relevance of an assessment of significance and how to

        recognise specific requirements for structures of special

        interest, traditional construction, hard-to-treat buildings and

        historical significance

22.13 how to identify, record, report and rectify unintended

       consequences not addressed in the design, including but not

       limited to the existence of: thermal bridges, thermal 

        bypassing and water ingress, inadequate ventilation and

        condensation risk

22.14 why it is important to avoid unintended consequences

22.15 why it is important to explain installation procedure to

          building occupants to include but not limited to the

          following: 
           - scope and work programme
           - safety requirements during the installation process
           - protection of property and personal items
           - specific benefits and implications to include homeowner   

             information
           - agreed standards of making good

22.16 the implications of existing guarantees and warranties that

         may be compromised by the installation to include but not

         limited to:
         - wall ties
         - windows
         - damp proof course
         - renders
         -Tyrolean coatings
         - silicone weather proof coatings

22.17 how to work with, around and in close proximity to plant and

         machinery

22.18 how to direct and guide the operations and movement of

         plant and machinery to ensure protection of a safe working

         environment

22.19 how to identify and follow the installation quality

          requirements

22.20 which wall types are unsuitable for internal wall insulation

22.21 the implications of insulating a terrace or semi-detached

          house regarding party wall bridge

22.22 why it is important to ensure pre-installation material checks

         are within specified parameters to include checking and

         recording batch number and reporting defects

22.23 how to protect and reinstate, access routes, existing fixtures

        and fittings (carpets)

22.24 how to prepare internal walls for insulation

22.25 how to treat external walls in line with system holder

        specification

22.26 the importance of ensuring all work to services (gas, electric,

        water, media cables) is carried out by suitably qualified people

22.27 how to remove, replace and reinstate skirting, coving and

          cornices, radiators and electrical sockets

22.28 how to calibrate equipment to measure density, flow and

         quality tests to ensure they are in line with manufacturers

         specifications and material requirements

22.29 how to install injected, blown and sprayed insulation

22.30 how to fit breather membrane and vapour control layers

22.31 the different types of air and vapour control layers and

         breather membranes, where and how they should be used and

         why it is important to install them correctly 

22.32 the importance of ensuring the integrity of air and vapour

         control layers and breather membranes, following installation

         and the need to maintain continuity

22.33 why it is important to immediately record and report

         unforeseen events including but not limited to equipment

         malfunctions, situations and faults not identified in the original

         design

22.34 why it is important to maintain or install fire resistant barriers

22.35 how to maintain sound-proofing

22.36 how to seal joints, perimeters and penetrations

22.37 why it is important to minimise thermal bridging through

         compliance with design detail ensuring a consistent level

         of insulation to the area being insulated

22.38 how to carry out any repair after installation

22.39 how to clean and disassemble installation processing

          equipment and pack away for transportation

22.40 why it is important to complete post installation checks in

         accordance with the system designer installations operations

         manual and report isues

22.41 why it is important to provide post installation advice and

         guidance to building occupants and client including

          homeowner packs

22.42 how to handover and sign off to the customers satisfaction

22.43 how to use all work tools and installation equipment in line

         with manufacturers' and system specifications

22.44 how to work at height using access equipment and harness

          systems

22.45 how and why maintenance of all work tools and installation

          equipment is carried out

K23.  the importance of team work and communication

K24.  the needs of other occupations associated with injecting,

         blowing and spraying insulation to internal walls

Performance Criteria 6
Allocated time
K25.  the programme of work to be carried out including the

         estimated, allocated time and why deadlines should be kept

K26.  the types of progress charts, timetables and estimated times

         and the organisational procedures for reporting circumstances

         which will affect the work programme


Scope/range


Scope Performance


Scope Knowledge


Values


Behaviours


Skills


Glossary


Links To Other NOS


External Links


Version Number

1

Indicative Review Date

30 Aug 2025

Validity

Current

Status

Original

Originating Organisation

CITB

Original URN

COSVR815

Relevant Occupations

Construction Operatives

SOC Code

8159

Keywords

Party wall bridge; Breather membrane; Vapour control