-SQA- SCOTTISH QUALIFICATIONS AUTHORITY HIGHER NATIONAL UNIT SPECIFICATION GENERAL INFORMATION

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1 -SQA- SCOTTISH QUALIFICATIONS AUTHORITY HIGHER NATIONAL UNIT SPECIFICATION GENERAL INFORMATION -Unit Number Superclass- -Title- TG BRICKWORK: ARCH CONSTRUCTION DESCRIPTION- GENERAL COMPETENCE FOR UNIT: Following instructions and adopting safe working practices and correct construction techniques to set out and build specified arches. OUTCOMES 1. outline methods of construction; 2. construct a bulls-eye window opening; 3. construct a Gothic arch; 4. construct a 3-centred arch. CREDIT VALUE: 1 HN Credit ACCESS STATEMENT: Access to this unit is at the discretion of the Centre. However, it would be an advantage if the candidate had completed a recognised SQA modular programme in Brickwork to SVQ level III. The unit forms part of the Advanced Certificate in Brickwork and is aimed at candidates following a career in brickwork and receiving complementary industrial experience For further information contact: Committee and Administration Unit, SQA, Hanover House, 24 Douglas Street, Glasgow G2 7NQ. Additional copies of this unit may be purchased from SQA (Sales and Despatch section). At the time of publication, the cost is 1.50 (minimum order 5).

2 HIGHER NATIONAL UNIT SPECIFICATION STATEMENT OF STANDARDS UNIT NUMBER: UNIT TITLE: BRICKWORK: ARCH CONSTRUCTION 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 1. OUTLINE METHODS OF CONSTRUCTION PERFORMANCE CRITERIA (a) (b) (c) (d) Terminology is clearly understood. Constructional details are clearly illustrated. Geometry theory is applied correctly. The method of providing temporary support is described appropriately. RANGE STATEMENT Information sources: drawings including plans; layouts; details and elevations; technical information. Arch types: bull's-eye window; three-centred arch; Gothic arches; rough arches; axed arches; gauged arches. Geometry: setting out procedures; geometric principles; traversing face of arch; scale drawings. Components: arch centre; folding wedges; props; sole plate; braces; templates; gauge rod; trammel. Materials: facing brick; special bricks; axed bricks. EVIDENCE REQUIREMENTS Written evidence of knowledge and understanding of: (v) types and purposes of information sources; applied terminology; types of arches; geometric principles; positioning of components; 2

3 (vi) (vii) (viii) functions of components; construction techniques and practices; construction details. The evidence may be supported by sketches or drawings as appropriate. All the performance criteria must be met and all items in the range statement covered. OUTCOME 2. CONSTRUCT A BULLS-EYE WINDOW OPENING PERFORMANCE CRITERIA (a) (b) (c) (d) The selection of tools and equipment is appropriate to the work. The construction is carried out in accordance with the drawing and specification. The bulls-eye and surrounding brickwork is built to stated tolerances. Work methods and activities are correct in terms of: erection and striking temporary support; minimising wastage of materials; satisfying current safety regulations. RANGE STATEMENT Information sources: drawings; specifications; oral or written instructions. Components: contrasting facing brick; common brick; arch centres; folding wedges. Processes: setting out; measuring; building; bonding; cutting; pointing; forming circle. Tools: bricklayer's tool kit; trammels. Safety: HSW Act (Health and Safety at Work etc Act); COSHH (Control of Substances Hazardous to Health) Regulations. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: (v) (vi) (vii) interpreting working drawings; determining size of bullseye window; determining size of edge shapes joints; setting out and building general walling with opening; setting up trammel; cutting bricks and building lower half of bullseye window; setting up arch centre; 3

4 (viii) (ix) cutting bricks and building upper half of bullseye window; removing temporary support. Oral or written evidence of knowledge and understanding of: (v) sequence of operations; applied terminology; position of components; function of components; responsibilities regarding statutory regulation. All the performance criteria must be met and all items in the range statement covered. OUTCOME 3. SET OUT AND BUILD A GOTHIC ARCH PERFORMANCE CRITERIA (a) (b) (c) (d) (e) Labour and material costs are correctly calculated. Correct interpretation is made of a given working drawing for the construction of general walling to receive a Gothic arch. A full size Gothic arch is set out to specification. A Gothic arch is built to required tolerances. Safe working practices are correct in terms of: erecting temporary support; sequencing operations; removing temporary supports; satisfying current safety regulations. RANGE STATEMENT Information sources: drawings; specifications; oral or written instruction. Tools: bricklayers' tool kit; setting out equipment. Components: high quality contrasting facings; common bricks. Processes: setting out; measuring; building; bonding; pointing; cutting; forming arch. Safety: HSW Act (Health and Safety at Work etc Act); COSHH (Control of Substances Hazardous to Health) Regulations. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in constructing a Gothic arch. 4

5 Oral or written evidence of knowledge and understanding of: (v) (vi) (vii) (viii) interpreting working drawing; determining shape of Gothic arch; determining size of joints; costing; setting out and building general walling with opening; setting up arch centre; completing Gothic arch; removing temporary support. All the performance criteria must be met and all items in the range statement covered. OUTCOME 4. CONSTRUCT A 3-CENTRED ARCH PERFORMANCE CRITERIA (a) (b) (c) (d) The selection of tools and equipment is appropriate to the work. The construction is carried out in accordance with the drawing and specification. The arch and supporting brickwork is built to the required tolerances. Work methods and activities are correct in terms of: minimising wastage of material; sequencing of operations; satisfying current safety regulations. RANGE STATEMENT Information sources: drawings; specifications; oral or written instructions. Tools: bricklayers' tool kit; setting-out equipment. Components: high quality facings common bricks; arch centre and supports. Processes: setting out; measuring; building; bonding; pointing; cutting; forming arch. Safety: HSW Act (Health and Safety at Work etc Act); COSHH (Control of Substances Hazardous to Health) Regulations. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in constructing a three-centred arch. 5

6 Oral or written evidence of knowledge and understanding of: sequence of operations; applied terminology; position of components; function of components. All the performance criteria must be met and all items in the range statement covered. MERIT A candidate who achieves all performance criteria for all outcomes will be awarded a pass. A pass with merit may be awarded to a candidate who substantially exceeds the minimum requirements of the unit for practical competence in outcomes 2, 3 and 4 and who consistently demonstrates at least five of the following: (a) (b) (c) (d) (e) (f) (g) clarity and depth of descriptive responses; logical sequencing of work; optimum use of time and resources; full co-operation in team work; high organisational ability; high motivation; high awareness of, and compliance with, safety requirements ASSESSMENT 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.) Accurate records should be made of the assessment instruments used showing how evidence is generated for each outcome and giving marking schemes and/or checklists, etc. Records of candidates' achievements should also be kept. These records will be required for external verification. SPECIAL NEEDS Proposals to modify outcomes, range statements or agreed assessment arrangements should be discussed in the first place with the external verifier. 6

7 Copyright SQA 1995 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. 7

8 HIGHER NATIONAL UNIT SPECIFICATION SUPPORT NOTES UNIT NUMBER: UNIT TITLE: BRICKWORK: ARCH CONSTRUCTION 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 the 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 40 hours. The use of notional design length for programme design and timetabling is advisory only. CONTENT/CONTEXT The candidate successfully completing this unit will require underpinning knowledge and skills relating to arch constructions. The unit deals with the construction of three different arch types, namely a bull's eye window opening, a Gothic arch and a 3-centred arch. The unit would be offered to candidates from the bricklaying industry. The skills are transferable within different working environments, but the unit is primarily aimed at candidates whose normal place of work would be a construction site. The range statement is applicable to all areas of construction 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. APPROACHES TO GENERATING EVIDENCE The achievement of the underpinning knowledge required for this unit would be assisted by the use of slides, site visits and hands-on experience. Demonstrations by tutors/trainers, especially in the application of practical aspects of the outcomes, should reinforce and augment the candidate's previous knowledge. Safety factors should be highlighted where applicable during the exercise. ASSESSMENT PROCEDURES Centres may use the Instruments of Assessment which are considered by the tutors/trainers to be the most appropriate. Examples of Instruments of Assessment which could be used are as follows: Outcome 1 Assignment: Pass 70% of items correct; 8

9 Merit 80% of items correct. Outcome 2 Outcome 3 Outcome 4 Practical exercise Practical exercise Practical exercise The following checklists may assist the assessor in judging the candidate performance against the Performance Criteria. OUTCOME 2 Plumb ± 3mm overall height Setting out ± 8mm (length) Setting out ± 5mm (opening) Level ± 6mm overall length Gauge ± 5mm overall height Joint thickness ± 3mm Perpends ± 5mm Facework: acceptable standard - clean Pointing: acceptable finish Remove temporary support Cut main walling to extrados of Bullseye: 4mm through width of wall Curvature of intrados: true shape, Deviation no more than 3mm Regular wedge shaped joints: acceptable Set up trammel to specification: acceptable standard Set up temporary supports: acceptable standard Faceplane ± 5mm Pass: all Essential items Merit: all Essential and all Desirable items. OUTCOME 3 Plumb ± 3mm overall height Setting out ± 8mm (length) Level ± 6mm overall length Gauge ± 5mm overall height Joint thickness ± 3mm Perpends ± 5mm Facework: acceptable standard - clean Pointing: acceptable finish Remove temporary support Face of arch Set up temporary supports: acceptable standard Setting out on dry flat surface: specification Cut equal mitres at crown of arch: acceptable standard Builds Gothic arch: acceptable standard Pass: all Essential items. 9

10 Merit: all Essential and all Desirable items. OUTCOME 4 Plumb ± 3mm overall height Joint thickness ± 3mm Pointing: acceptable finish Remove temporary support Set up temporary supports: acceptable standard Setting out on dry flat surface: to specification Prepares Templates: acceptable standard Cut Voussoirs: acceptable standard Build arch: traversing voussoirs: acceptable standard Face of arch Pass: all Essential items. Merit: all Essential and all Desirable items. PROGRESSION This unit forms part of the programme for the Advanced Certificate in Brickwork. Candidates successfully completing the Advanced Certificate will be able to progress to the HNC in Construction Practice. Each unit is a separate part of the framework of units for the award and units 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 mandatory units: Brickwork: External Corners and Piers in Reconstituted Stone (x 0.5) Brickwork: Installation of Domestic Heat Appliances, Surrounds and Firebacks (x 0.5) Brickwork: Underpinning and Shoring in Alteration and Repair Work Brickwork: Steps in Brick and Concrete (x 0.5) Brickwork: Arch Construction Brickwork: Circular Walls on Plan and Elevation Brickwork: Facing Blockwork and Glass Block Panels (x 0.5) Brickwork: Setting Out and Establishing Levels in Domestic Construction (0.5). Brickwork: Architectural and Feature Work and one of the following optional units: Brickwork: Architectural Landscape Walling (x 0.5) Brickwork: Cladding Methods (x 0.5) Brickwork: Below Ground Drainage (x 0.5) 10

11 REFERENCES 1. Guide to unit writing. 2. For a fuller discussion on assessment issues, please refer to SQA's Guide to Assessment. 3. Information for centres on SQA's operating procedures is contained in SQA's Guide to Procedures. 4. For details of other SQA publications, please consult SQA's publications list. Copyright SQA 1995 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. 11