-SQA- SCOTTISH QUALIFICATIONS AUTHORITY NATIONAL CERTIFICATE MODULE: UNIT SPECIFICATION GENERAL INFORMATION. -Module Number Session

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1 -SQA- SCOTTISH QUALIFICATIONS AUTHORITY NATIONAL CERTIFICATE MODULE: UNIT SPECIFICATION GENERAL INFORMATION -Module Number Session Superclass- TG -Title- PROVIDING SURFACE FINISHING TO STRUCTURAL FABRIC IN ROOFING GRADE MASTIC ASPHALT (x 2) DESCRIPTION- GENERAL COMPETENCE FOR UNIT: Interpreting instructions, planning, organising and adopting safe working practices to apply mastic asphalt roofing to horizontal, vertical and inclined surfaces, to bays, prepared falls and water lines, and to include associated labour items and solar reflective finishes, to new and existing surfaces. OUTCOMES (Elements of Competence) 1. interpret technical information to provide surface finishings; 2. prepare background surfaces to receive surface finishings; 3. select materials and components for surface finishings; 4. provide dimensional positioning for setting out components; 5. prepare materials for surface finishings; 6. prepare components for surface finishings; 7. position and secure components to structural fabric; 8. apply materials to provide surface finishings. This unit incorporates the standards of the CITB Lead Body. CREDIT VALUE: 2 NC Credits ACCESS STATEMENT: This module forms part of the level II SVQ in Mastic Asphalting, details of which are given in the Support Notes, under Progression. There is no access statement for this module but it is designed to complement the other units in the SVQ and candidates would normally be expected to be receiving complementary industrial experience in a related field

2 For further information contact: Committee and Administration Unit, SQA, Hanover House, 24 Douglas Street, Glasgow G2 7NQ. This specification is distributed free to all approved centres. Additional copies may be purchased from SQA (Sales and Despatch section) at a cost of 1.50 (minimum order 5). 2

3 NATIONAL CERTIFICATE MODULE: UNIT SPECIFICATION STATEMENT OF STANDARDS UNIT NUMBER: UNIT TITLE: PROVIDING SURFACE FINISHING TO STRUCTURAL FABRIC IN ROOFING GRADE MASTIC ASPHALT Acceptable performance in this unit will be the satisfactory achievement of the standards set out in this part of the specification. All sections of the statement of standards are mandatory and cannot be altered without reference to SQA. OUTCOME (ELEMENT OF COMPETENCE) 1. INTERPRET TECHNICAL INFORMATION TO PROVIDE SURFACE FINISHINGS PERFORMANCE CRITERIA (a) (b) (c) (d) Accurate and relevant selection and interpretation is made of technical information from given sources in relation to materials to be applied. Corrective actions are implemented to establish practicable application procedures. Instructions given to the candidate are correctly interpreted and implemented. Instructions and information relayed to others are clear and concise. RANGE STATEMENT Information sources: detail drawings; specifications; manufacturers' technical information; scales; orthographic (first angle) projections; symbols and abbreviations. Corrective actions: drawings amendment procedures; specification amendment procedures. Dimensions: labour items; component positions; vertical, horizontal, inclined, curved surfaces. Calculations: simple multiplication; division; addition; subtraction. 3

4 EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: taking off dimensions, and types and quantities of materials and components; calculating, from given information sources, areas, volumes, quantities, linear measurement. Oral or written evidence of knowledge and understanding of: types and purposes of information sources; methods of reporting inaccuracies in information sources. All the performance criteria must be met and all items in the range statement covered. OUTCOME (ELEMENT OF COMPETENCE) 2. PREPARE BACKGROUND SURFACES TO RECEIVE SURFACE FINISHINGS PERFORMANCE CRITERIA (a) (b) (c) (d) (e) (f) (g) (h) (j) The preparation of the backgrounds is correct in terms of meeting the requirements of the surface finish. The method of preparation and processes used are appropriate to the backgrounds and carried out effectively. Efficient use of material minimises waste. The selection of tools and equipment is appropriate to the work. Corrective actions are implemented against deviation from preparation specification. Instructions given to the candidate are correctly interpreted and implemented. Instructions and information relayed to others are clear and concise. The cleanliness of the work area is maintained. Work is completed to an agreed time schedule. Work methods and activities are correct in terms of: minimising damage to the built environment; optimising the use of available materials and manpower; satisfying current legislation. 4

5 RANGE STATEMENT Information sources: drawings; specifications; manufacturers' technical information. Corrective actions: specification and drawing amendment procedures. Tools and equipment: hand tools; portable power tools. Materials: primers; separating membranes; expanded metal lathing. Preparation processes: hacking; priming; drying; fixing; cleaning; measuring; lining in; cutting out; making good; laying separating membrane and insulating screeds. Backgrounds: brickwork; blockwork; cementitious; timber; metal. Safety: machinery operating procedures; personal protection regulations; materials handling regulations; HASWA (Health and Safety at Work Act), COSHH (Control of Substances Hazardous to Health) Regulations. Locations: new and existing situations. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: (v) (vi) checking backgrounds; cleaning backgrounds; repairing backgrounds; priming backgrounds; laying separating membranes; fixing expanded metal lathing, using hand tools and portable power tools. Oral or written evidence of knowledge and understanding of: (v) (vi) (vii) (viii) purpose of preparing backgrounds; effects of incomplete preparation; types and purposes of information sources; types and purposes of lightweight insulating screeds; methods of preparing backgrounds; types and uses of separating membranes; responsibilities regarding statutory regulations; types and safe use of power supply including transformers. All the performance criteria must be met and all items in the range statement covered. 5

6 OUTCOME (ELEMENT OF COMPETENCE) 3. SELECT MATERIALS AND COMPONENTS FOR SURFACE FINISHINGS PERFORMANCE CRITERIA (a) (b) (c) (d) The selection of materials and components complies with the specification in terms of quantity, quality and types. Corrective actions are implemented to establish utility of materials and components. Instructions given to the candidate are correctly interpreted and implemented. Instructions and information relayed to others are clear and concise. RANGE STATEMENT Information sources: drawings; specifications; manufacturers' technical information. Corrective actions: defective and non-match materials and components replacement procedures. Materials: separating membranes; primers; mastic asphalt; expanded metal lathing; insulants; solar reflective paint and chippings; vapour barriers; metal edge trims. Components: gauges; collars. Statutory regulations: personal protection regulations; materials handling regulations; HASWA (Health and Safety at Work Act); COSHH (Control of Substances Hazardous to Health) Regulations. Locations: new and existing situations. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in selecting materials and components for surface finishings in bituminous materials. Oral or written evidence of knowledge and understanding of: (v) (vi) (vii) (viii) characteristics, uses and limitations of materials and components in the range; grades and properties of mastic asphalt roofing; types and properties of primers; purposes and use of expanded metal lathing; types and purposes of separating membranes; types and purposes of vapour barriers; types and purposes of metal edge trims; types and purposes of surface finishings; 6

7 (ix) (x) (xi) types and thicknesses of gauges; types and purposes of information sources; responsibilities regarding statutory regulations. All the performance criteria must be met and all items in the range statement covered. OUTCOME (ELEMENT OF COMPETENCE) 4. PROVIDE DIMENSIONAL POSITIONING FOR SETTING OUT COMPONENTS PERFORMANCE CRITERIA (a) The provision is correct in that: reference marks conform with technical information and construction methods; the transference of levels from given reference points complies with the technical information; preparation processes are used correctly and appropriately. (b) (c) (d) (e) The selection of tools and equipment is appropriate to the work. Corrective actions are implemented against deviations from positioning specification. Instructions given to the candidate are correctly interpreted and implemented. Instructions and information relayed to others are clear and concise. RANGE STATEMENT Information sources: drawings; specifications; manufacturers' technical information. Corrective actions: reference marks verification procedures. Tools and equipment: hand tools (measuring). Preparation processes: measuring; marking; lining in. Components: gauges; collars; edge trims; expansion joints; roof screed ventilators; water lines and checks; pads and bosses; vapour barriers; insulation boards. Locations: new and existing situations. 7

8 EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: positioning reference marks for regular and irregular areas and laps; lining in; transferring levels using measuring equipment (tapes, chalkline, spirit level and straight edge). Oral or written evidence of knowledge and understanding of: (v) (vi) (vii) (viii) (ix) (x) (xi) purpose of laps on separating membranes; purposes of laps on expanded metal lathing; purpose and positioning of edge trims, expansion joints, roof screed ventilators; heights of collars to pipe work; purpose and positioning of water lines; purpose and positioning of pads and bosses; positioning of vapour barriers; positioning of insulation boards; positioning of water checks; types and purposes of information sources; responsibilities regarding statutory regulations. All the performance criteria must be met and all items in the range statement covered. OUTCOME (ELEMENT OF COMPETENCE) 5. PREPARE MATERIALS FOR SURFACE FINISHINGS PERFORMANCE CRITERIA (a) (b) (c) (d) (e) (f) (g) (h) The preparation of materials is complete and in accordance with manufacturers' instructions and specifications. The quantity of materials is sufficient and minimises wastage. The selection of tools and equipment is appropriate to the work. Corrective actions are implemented in response to materials and environmental problems. Instructions given to the candidate are correctly interpreted and implemented. Instructions and information relayed to others are clear and concise. The cleanliness of the work area is maintained. Work is completed to an agreed time schedule. Work methods and activities are correct in terms of: minimising damage to the built environment; optimising the use of available materials and manpower; satisfying current legislation. 8

9 RANGE STATEMENT Information sources: drawings; specifications; manufacturers' technical information. Materials: separating membranes; primers; mastic asphalt; insulants; solar reflective paint and chippings; vapour barriers. Tools and equipment: hand tools; cauldron; mixer. Preparation processes: breaking; melting; mixing; cutting; fitting; brushing; measuring. Safety: personal protection regulations; manual handling regulations; equipment operating procedures; HASWA (Health and Safety at Work Act); COSHH (Control of Substances Hazardous to Health) Regulations. Locations: new and existing situations. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: manual handling of sheet, rolled, containerised, block and kegged materials; melting of block and kegged materials by machine (mixer) and hand (cauldron); proportioning and addition of grit to mastic asphalt; measuring, marking and cutting, of sheet and rolled materials. Oral or written evidence of knowledge and understanding of: (v) (vi) (vii) (viii) reasons for and methods of handling materials with care; methods of marking and cutting sheet and rolled materials; methods of preparing primers, bitumen, and mastic asphalt; reasons for and methods of controlling temperature of mastic asphalt; reasons for addition of grit to mastic asphalt; method of preparing solar reflective finishes; types and purposes of information sources; responsibilities regarding statutory regulations. All the performance criteria must be met and all items in the range statement covered. 9

10 OUTCOME (ELEMENT OF COMPETENCE) 6. PREPARE COMPONENTS FOR SURFACE FINISHINGS PERFORMANCE CRITERIA (a) (b) (c) (d) (e) (f) (g) (h) The preparation of components is complete and in accordance with manufacturers' instructions and specifications. The quantity of components is sufficient and minimises wastage. The selection of tools and equipment is appropriate to the work. Corrective actions are implemented in response to component and environmental problems. Instructions given to the candidate are correctly interpreted and implemented. Instructions and information relayed to others are clear and concise. The cleanliness of the work area is maintained. Work is completed to an agreed time schedule. Work methods and activities are correct in terms of: optimising the use of available materials and manpower; satisfying current legislation. RANGE STATEMENT Information sources: drawings; specifications; manufacturers' technical information. Components: gauges; expanded metal lathing; edge trims; roof screed ventilators. Tools and equipment: hand tools; portable power tools. Preparation processes: cleaning; cutting; brushing. Safety: personal protection regulations; manual handling regulations; machine operating procedures; HASWA (Health and Safety at Work Act); COSHH (Control of Substances Hazardous to Health) Regulations. Locations: new and existing situations. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: preparing gauges; preparing collars, edge trims, outlets and roof screed ventilators, using hand tools. 10

11 Oral or written evidence of knowledge and understanding of: reasons for preparing components; methods of preparing gauges, collars, edge trims, outlets, roof screed ventilators; types and purposes of information sources; responsibilities regarding statutory regulations. All the performance criteria must be met and all items in the range statement covered. OUTCOME (ELEMENT OF COMPETENCE) 7. POSITION AND SECURE COMPONENTS TO STRUCTURAL FABRIC PERFORMANCE CRITERIA (a) (b) (c) (d) (e) (f) (g) (h) Components are positioned in accordance with the specification. Components are secured in accordance with the specification. The selection of tools and equipment is appropriate to the work. Instructions given to the candidate are correctly interpreted and implemented. Instructions and information relayed to others are clear and concise. The cleanliness of the work area is maintained. Work is completed to an agreed time schedule. Work methods and activities are correct in terms of: optimising the use of available materials and manpower. satisfying current legislation. RANGE STATEMENT Information sources: drawings; specifications; manufacturers' technical information. Components: gauges; expanded metal lathing; edge trims; roof screed ventilators. Tools and equipment: hand tools and portable power tools. Preparation processes: cutting; measuring; marking; fixing. Safety: personal protection regulations; manual handling regulations; machine operating procedures; HASWA (Health and Safety at Work Act); COSHH (Control of Substances Hazardous to Health) Regulations. Locations: new and existing situations. 11

12 EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: fixing gauges and expanded metal lathing; using hand tools and portable power tools. Oral or written evidence of knowledge and understanding of: purpose of checking backgrounds prior to fixing; methods of fixing; types and purposes of information sources; responsibilities regarding statutory regulations. All the performance criteria must be met and all items in the range statement covered. OUTCOME (ELEMENT OF COMPETENCE) 8. APPLY MATERIALS TO PROVIDE SURFACE FINISHINGS PERFORMANCE CRITERIA (a) (b) (c) (d) (e) (f) (g) (h) The methods of application provide the specified finish. The finished surface is in accordance with the specification. Efficient use of materials minimises waste. The selection of tools and equipment is appropriate to the work. Instructions given to the candidate are correctly interpreted and implemented. Instructions and information relayed to others are clear and concise. The cleanliness of the work area is maintained. Work is completed to an agreed time schedule. Work methods and activities are correct in terms of: minimising damage to the built environment; optimising the use of available materials and manpower; satisfying current legislation. RANGE STATEMENT Information sources: drawings; specifications; manufacturers' technical information. Materials: mastic asphalt; primers; separating membrane; insulants; vapour barriers; solar reflective paint and chippings. Structures: horizontal; vertical; inclined surfaces; labour items. Application processes: applying; positioning. Tools and equipment: hand tools, portable power tools. 12

13 Statutory regulations: personal protection regulations; materials handling regulations; portable power tool operating procedures; HASWA (Health and Safety at Work Act); COSHH (Control of Subtances Hazardous to Health) Regulations. Locations: new and existing situations. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: (v) (vi) (vii) (viii) priming to surfaces; laying vapour barriers; laying separating membranes; laying insulation materials; applying mastic asphalt in multiple coats to horizontal, vertical and inclined surfaces, to levels and falls; finishing mastic asphalt to outlets and channels; forming skirtings, and associated labour items; surface finishing to mastic asphalt (natural float finish, sand rubbed finish, solar reflective paint and chippings). Oral or written evidence of knowledge and understanding of: reasons for and methods of laying mastic asphalt to falls and levels; reasons for and methods of applying mastic asphalt to form labour items; reasons for and methods of laying vapour barriers; reasons for and methods of laying separating membranes; (v) reasons for and methods of laying insulation materials; (vi) methods of finishing mastic asphalt to outlets and channels; (vii) reasons for and methods of finishing surface of mastic asphalt; (viii) types and purposes of information sources; (ix) responsibilities regarding statutory regulations. All the performance criteria must be met and all items in the range statement covered ASSESSMENT RECORDS In order to achieve this unit, candidates are required to present sufficient evidence that they have met all the performance criteria for each outcome within the range specified. Details of these requirements are given for each outcome. The assessment instruments used should follow the general guidance offered by the SQA assessment model and an integrative approach to assessment is encouraged. (See references at the end of support notes). 13

14 Accurate records should be made of assessment instruments used showing how evidence is generated for each outcome and giving marking schemes and/or checklists, etc. Records of candidates' achievements should be kept. These records will be available for external verification. SPECIAL NEEDS In certain cases, modified outcomes and range statements can be proposed for certification. See references at end of Support Notes. Copyright SQA 1992 Please note that this publication may be reproduced in whole or in part for educational purposes provided that: no profit is derived from the reproduction; if reproduced in part, the source is acknowledged. 14

15 NATIONAL CERTIFICATE MODULE: UNIT SPECIFICATION UNIT NUMBER SUPPORT NOTES UNIT TITLE PROVIDING SURFACE FINISHING TO STRUCTURAL FABRIC IN ROOFING GRADE MASTIC ASPHALT SUPPORT NOTES: This part of the unit specification is offered as guidance. None of the sections of the support notes is mandatory. NOTIONAL DESIGN LENGTH: SQA allocates a notional design length to a unit on the basis of time estimated for achievement of the stated standards by a candidate whose starting point is as described in the access statement. The notional design length for this unit is 80 hours. The use of notional design length for programme design and timetabling is advisory only. PURPOSE This unit is designed to enable the candidate to develop skills and knowledge related to providing surface finishing to structural fabric in roofing grade mastic asphalt. It is suitable for operatives working in the construction industry or an industry related to construction. SQA publishes summaries of NC units for easy reference, publicity purposes, centre handbooks, etc. The summary statement for this unit is as follows: This module will help you to acquire the skills and knowledge necessary to prepare background surfaces, materials and components, and apply roofing grade mastic asphalt to structural fabric of all types. On completion of the module you will have a good working knowledge of the relevant current safety, materials handling and machine operating regulations. CONTENT/CONTEXT The candidate successfully completing this module will require underpinning knowledge and skills relating to the preparation of roofing grade mastic asphalt and will need to acquire skill in applying the asphalt to horizontal, vertical and inclined roof surfaces and labour items, as well as learning how to provide dimensional positioning and prepare the backgrounds before application. The unit would be offered to candidates from construction and related industries. The skills are transferable within different working environments but the unit is primarily aimed at candidates whose normal place of work would be a site or similar environment. The range statement is applicable to all areas of construction, and installation, and other related or similarly structured industries. The competences and underpinning knowledge gained in successfully completing this unit would be transferable across a range of disciplines within the built environment. 15

16 The unit deals with roofing grade mastic asphalt work and is complemented by other units dealing with related aspects of work in bituminous materials. It should be delivered as part of a structured programme of training and orientated to the context of the candidate's work and area of responsibility. APPROACHES TO GENERATING EVIDENCE The achievement of the underpinning knowledge required for this unit would be assisted by the use of slides and videos, and hands-on experience. Tutors/trainers should demonstrate practical elements step by step until the candidate feels confident enough to attempt them on his/her own, and the safety factors should be thoroughly emphasised. Supervisors and employers should also play an important part in assisting candidates to generate evidence. ASSESSMENT PROCEDURES Candidates will be able to provide evidence of performance using a variety of methods. These will include: - Performance at work (recorded in Candidate's Assessment and Evidence Record or other methods). - Performance in training (recorded in Candidate's Assessment and Evidence Record or other methods). - Simulated exercises (skills/progress test results). - Past achievement/experiences e.g. letters of endorsement; past certificates. Evidence gathering from the workplace will be the preferred method; however there may be situations where this is inappropriate or the evidence is insufficient. Supplementary evidence will also be required to demonstrate the underpinning knowledge related to the competences in the unit. For detailed guidance on assessment, reference should be made to the publications listed at the end of the Support Notes and to the Assessment Guidance Notes available for the delivery of the Scottish Vocational Qualification of which this module is a component. PROGRESSION This unit forms part of the level II SVQ in Mastic Asphalting. Each module is a separate unit and the modules are not necessarily taken in a prescribed order, although there is a logical sequence to the acquisition of the skills and knowledge concerned. To gain the award, the candidate must successfully complete all of the following modules: Erecting and Dismantling Access Equipment (x 1.5) Providing Surface Finishing to Structural Fabric in Flooring Grade Mastic Asphalt (x 2) 16

17 Providing Surface Finishing to Structural Fabric in Roofing Grade Mastic Asphalt (x 2) Providing Surface Finishing to Structural Fabric in Tanking Grade Mastic Asphalt (x 2) Providing Surface Finishing to Structural Fabric in Paving Grade Mastic Asphalt (x 2) RECOGNITION Many SQA NC units are recognised for entry/recruitment purposes. For up-to-date information see the SQA guide 'Recognised and Recommended Groupings'. REFERENCES 1. Guidelines for Module Writers. 2. SQA's National Standards for Assessment and Verification. 3. For a fuller discussion on assessment issues, please refer to SQA's Guide to Assessment. 4. Procedures for special needs statements are set out in SQA's guide 'Students with Special Needs'. Copyright SQA 1992 Please note that this publication may be reproduced in whole or in part for educational purposes provided that: no profit is derived from the reproduction; if reproduced in part, the source is acknowledged. 17