Spray insulation to create warm roofs

URN: COSVR812
Business Sectors (Suites): Insulation and Building Treatments (Construction)
Developed by: Construction Skills
Approved on: 30 Aug 2020

Overview

This standard is about preparing, spraying insulation to create warm roofs, insulating 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 installation 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 vents and
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 external and internal 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)
    5.2 use and maintain all work tools and installation equipment
    5.3 avoid damage to the building, 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
    5.4 create and protect walkways and platforms for access and
    storage
    5.5 remove and secure building occupants stored items
    5.6 identify and install passive ventilation as required by the design
    and report any identified ventilation limitations
    5.7 identify and report the potential risk of omitted areas in relation
    to increased condensation following installation relating to roof
    coverings (pitched and flat) and roof structures (timber, metal,
    concrete)
    5.8 check for and protect hidden utilities
    5.9 protect electrical services, lighting, media, high amperage
    cables
    5.10 confirm pre-installation material checks are within specified
    parameters to include checking and recording batch number
    and reporting defects
    5.11 assemble and operate installation processing equipment in line
    with manufacturers and system manuals
    5.12 calibrate equipment to measure density, flow and quality tests
    to ensure they are in line with manufacturers specifications and
    material requirements
    5.13 install passive ventilation and safeguard existing ventilation
    5.14 prepare and fix pipe, tank and cylinder insulation
    5.15 prepare and install sprayed insulation to create a warm roof
    5.16 ensure the insulation is contained within the prescribed areas
    5.17 ensure insulation around electrical apparatus will not create fire
    hazards (light fittings, electrical units and cables)
    5.18 install and maintain fire resistant barriers where appropriate
    5.19 minimise the effects of thermal bridging through compliance
    with design detail and ensuring a consistent level of insulation
    to the area being insulated
    5.20 clean and disassemble installation processing equipment and
    pack away for transportation
    5.21 provide post installation advice and guidance to building
    occupants including homeowner packs and data sheets
    5.22 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
    5.24 work at height using access equipment and harness systems
    5.25 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 1Interpretation of informationK1.  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   drawings2.2   specifications2.3   schedules2.4   method statements2.5   risk assessments2.6   design2.7   standards2.8   manufacturers' information2.9   data sheets2.10  official guidance2.11  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 2Safe work practicesK4. 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, injuries6.2   emergencies relating to occupational activities6.3   identification of and reporting of asbestos containing materials
K7. the organisational security procedures for tools,
equipment and personal belongings in relation to:7.1   site7.2   workplace7.3   siting and location of vehicles7.4   company7.5   customer7.6   access equipment7.7   material and waste storage7.8   the general public
K8.  how to report risks and hazards identified by the following:8.1   risk assessment8.2   personal assessment8.3   methods of work8.4   manufacturers' technical information8.5   data sheets8.6   statutory regulations8.7   official guidance8.8   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 measures10.2  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 spaces11.2   at height11.3   tools and equipment11.4   materials and substances11.5   movement and storage of materials by manual handling and
mechanical lifting
Performance Criteria 3Selection of resourcesK12.  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 insulation15.2 fixings and ancillary items15.3 access boards15.4 fire rated caps15.5 cable protection15.6 all work tools15.7 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 for
spraying insulation to create warm roofs
Performance Criteria 4Minimise the risk of damageK18.  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 following20.1   current legislation20.2   environmental responsibilities20.3   organisational procedures20.4   manufacturers' information20.5   data sheets20.6   statutory regulations20.7   official guidance
K21.  why it is important to maintain a safe, clear and tidy work
area
Performance Criteria 5Meet the contract specificationK22.  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 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
    22.7 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
    22.8 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
    22.9 why it is important to avoid unintended consequences
    22.10 the implications of existing guarantees and warranties that
    may be compromised by the installation to include but not          limited to:          - building warranties          - roof skylights          - loft guarantees          - timber treatment          - recognise the procedures to check flues and combustion air
    ventilation
    22.11 check, record and report issues with construction ventilation,
    flues, chimneys and combustion air ventilators pre and post
    installation
    22.12 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          - condition of roof
    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 obstructions and secure stored items
    22.19 how to identify and install passive ventilation as required by
    the design and report any identified ventilation limitations
    22.20 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)
    22.21 the importance of ensuring all work to services (gas, electric,
    water, media cables) is carried out by suitably qualified people
    22.22 how to check for and protect hidden utilities
    22.23 how to protect electrical services, lighting, media, high
    amperage cables
    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 prepare and install sprayed insulation to create a
    warm roof
    22.28 why it is important to ensure the insulation is contained within
    the prescribed areas
    22.29 how to ensure insulation around electrical apparatus will not
    create fire hazards (light fittings, electrical units and cables)
    22.30 how to install and maintain fire resistant barriers where
    appropriate
    22.31 how to minimise the effects of thermal bridging through
    compliance with design detail and ensuring a consistent
    level of insulation to the area being installed
    22.32 how to clean and disassemble installation processing
    equipment and pack away for transportation
    22.33 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
    22.34 the importance of ensuring the integrity of air and vapour
    control layers and breather membranes following installation
    and the need to maintain continuity
    22.35 why it is important to immediately record and report
    unforeseen events events including but not limited to
    equipment malfunctions, situations and faults not identified in
    the original design
    22.36 why it is important to provide post installation advice and
    guidance to building occupants including homeowner packs
    22.37 how to handover and sign off to the customers satisfaction
    22.38 how to use all work tools and installation equipment in line
    with manufacturers and system specifications
    22.39 how to work at height using access equipment and harness
    systems
    22.40 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 spraying
    insulation to create warm roofs
    Performance Criteria 6 Allocated time
  • K25.  the programme of work to be carried out including the
    estimated and 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

COSVR812

Relevant Occupations

Construction Operatives

SOC Code

8159

Keywords

Thermal bridging; Ventilation; Vapour control; Cavity barriers; Pipe insulation; Tank insulation; Cylinder insulation; Access routes