Blown insulation to cold roofs

URN: COSVR813
Business Sectors (Suites): Insulation and Building Treatments (Construction)
Developed by: Construction Skills
Approved on: 30 Aug 2020

Overview

This standard is about preparing and blowing insulation to cold roofs and to access hatches, pipes, tanks and cylinders in roof areas, 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   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 for the following:
5.1 demonstrate work skills to, measure, mark out, calculate, make

      good

5.2 carry out pre-installation checks, assessing, recording and

     reporting issues to include:

     -  suitable access

     - property suitability

     - structural integrity

     - dampness

     - decay

     - exposure ratings

     - vents and ventilation

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

5.3 use and maintain all work tools and installation equipment

      in line with manufacturers and system specifications

5.4 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
      - condition of roof

5.5 create and protect platforms and walkways for access and

      storage

5.6 remove and secure building occupants stored items

5.7 identify and remove infested, damaged and contaminated

      insulation from roof area

5.8 identify and install passive ventilation as required by the design

      and report any identified ventilation limitations

5.9 identify and report the potential risk of uninsulated omitted

      areas in relation to increased condensation following installation

      relating to roof coverings (pitched and flat) and roof structures

      (timber, metal, concrete)

5.10 check for and protect hidden utilities

5.11 identify insulation materials and their characteristics for cold

        roofs, pipes, storage tanks, cylinders and access hatches

5.12 confirm pre-installation material checks are within specified

        parameters to include checking and recording batch number

        and reporting defects

5.13 assemble and operate installation processing equipment in line

        with manufacturers and system manuals

5.14 calibrate equipment to measure density, flow and quality tests

        to ensure they are in line with manufacturers specifications and

        material requirements

5.15 install passive ventilation and safeguard existing ventilation

5.16 prepare and install blown insulation to cold roofs

5.17 prepare and fix pipe, tank and cylinder insulation

5.18 ensure the insulation is contained within the prescribed areas

5.19 protect downlighters by installation of fire rated caps to the

        required specification

5.20 ensure insulation around electrical apparatus will not create fire

        hazards (light fittings, electrical units and cables)

5.21 minimise the effects of thermal bridging through compliance

        with design detail and ensuring a consistent level of insulation

        to area being insulated

5.23 install and maintain fire resistant barriers

5.24 clean and disassemble installation processing equipment and

        pack away for transportation

5.25 complete post installation checks in accordance with the

        system designer installations operations manual and report

        issues to include but not limited to safeguarding the

        combustion ventilation and report defects

5.26 provide post installation advice and guidance to building

        occupants including homeowner packs, warning labels and

        data sheets

5.27 work at height using access equipment and harness systems

5.28 handover and sign off to the customers satisfaction

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   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   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   confined spaces
11.2   at height
11.3   tools and equipment
11.4   materials and substances
11.5   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 insulation
15.2 pipe insulation
15.3 tank and cylinder jackets
15.4 fixings and ancillary items
15.5 access boards
15.6 loft hatches
15.7 soffit and fascia boards
15.8 tile vents
15.9 ridge tiles
15.10 sarking felt vents
15.11 draught-proofing materials
15.12 fire rated caps
15.13 cable protection
15.14 all work tools
15.15 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 required and used

         to ensure, adequacy of fill as per system designer specification

         and wastage associated with the method and procedure to

         install blown insulation to cold roofs

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   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

        - decay

        - vents and ventilation

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

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

       completed prior to installation

22.6 the implications of existing guarantees and warranties that 

        may be compromised by the installation to include but not
        limited to:
        - timber treatment

        - re-wiring
        - loft guarantees
        - building warranties

22.7 how and why it is important to check, record and report issues

        with construction ventilation, flues, chimneys and combustion

        air ventilators pre and post installation

22.8 how to identify when specialist skills and knowledge are

        required and report accordingly including but not limited to: -

        - fire safety

        - electrical

        - asbestos

        - Radon

        - heritage

        - architectural features

        - ecology

        - ventilation

22.9 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

22.10 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

22.11 why it is important to avoid unintended consequences

22.12 why it is important 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
        - condition of roof

        - damaged or spalled brickwork into gable ridge
        - drainage and down pipes

22.13 how to work with, around and in close proximity to plant and
          machinery

22.14 how to direct and guide the operations and movement of
          plant and machinery to ensure protection of a safe working
          environment

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  how to identify and follow the installation quality

           requirements

22.17 how to create and protect walkways and platforms

22.18 how to remove and secure stored items

22.19 why it is important to identify and remove infested, damaged

          and contaminated insulation from roof area

22.20 how to install passive ventilation as required by the design

         and report any identified ventilation limitations

22.21 how to identify and report the potential risk of uninsulated

          omitted areas in relation to increased condensation following

          installation relating to roof coverings (pitched and flat) and

          roof structures (timber, metal, concrete)

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

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

22.23 how to check for and protect hidden utilities

22.24 how to ensure pre-installation material checks are within

          specified parameters to include checking and recording batch

          number and reporting defects

22.25 how to assemble and operate installation processing

          equipment in line with manufacturers and system manuals

22.26 how to calibrate equipment to measure density, flow and

          quality tests to ensure they are in line with manufacturers

          specifications and material requirements

22.27 how to install passive ventilation and safeguard existing

          ventilation

22.28 how to prepare and install blown insulation to cold roofs

22.29 why it is important to minimise thermal bridging through

          compliance with design detail and ensuring a consistent

          level of insulation to the area being inuslated

22.30 how to prepare and fix pipe, tank and cylinder insulation

22.31 how to ensure the insulation is contained within the

          prescribed areas

22.32 how to protect downlighters by installation of fire rated caps

          to the required specification

22.33 how to ensure insulation around electrical apparatus will not

          create fire hazards (light fittings, electrical units and cables)

22.34 how to install and maintain fire resistant barriers

22.35 how to clean and disassemble installation processing

          equipment and pack away for transportation

22.36 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

22.37 the importance of ensuring the integrity of air and vapour

         control layers and breather membranes following installation

         and the need to maintain continuity

22.38 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

22.39 why it is important to complete post installation checks in

          accordance with the system designer installations operations

          manual and report issues to include but not limited to

          safeguarding the combustion ventilation and report defects

22.40 why it is important to provide advice to building occupants

          including homeowner packs, warning labels and datasheets

22.41 how to handover and sign off to the customers satisfaction

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

          with manufacturers and system specifications

22.43 how to work at height using access equipment and harness

          systems

22.44 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

        blown insulation to cold roofs

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

COSVR813

Relevant Occupations

Construction Operatives

SOC Code

8159

Keywords

Passive ventilation; Thermal bridging, Pipe insulation, Tank insulation; Cylinder insulation; Fire resistant barriers