Facebook Pixel
Skip to content
< Back to search results

Tiling to calcium sulfate (anhydrite) screeds

  • Last updated: 28 November 2018
  • Grant rate/tier: £140 (Tier 2)
  • Grant code: GET1760

Overview

The purpose of this standard is to provide the candidate with the knowledge and skills to install pump-applied self-smoothing screeds based on a binder of calcium sulphate, in a weather-tight building envelope.
Find a course for this standard

CITB has developed this standard in discussion with industry

Duration

Minimum 1 day of 6 learning hours per day

Purpose/scope

The purpose of this standard is to provide the candidate with the knowledge and skills to install pump-applied self-smoothing screeds based on a binder of calcium sulphate, in a weather-tight building envelope.

The scope of this standard does not cover hand-applied screeds.

The scope of this standard covers:

  • description of screeds
  • design considerations for screed construction
  • how to install a screed
  • surface treatment and drying of screeds 
  • how to test screeds
  • how to install joints in screeds
  • how to prepare and repair a screed
  • how to assess the substrate for tiling
  • how to prime and level screeds for tiling
  • how to select and use adhesive for tiling
  • how to install movement joints for tiling
  • how to fix tiles
  • how to select and use grout
  • how to work safely
  • main legislation, codes of practice, guides, and standards

Occupational relevance

Training delivered against this standard is relevant to the following occupational group(s):

  • operative and craft
  • supervision.

Candidate prerequisites

There are no candidate pre-requisites as part of this standard. However, a basic knowledge of tiling terminology and techniques would be beneficial.

Instruction/supervision

As a minimum, course instructors must be able to demonstrate that, in relation to this standard, they have:

  • A train the trainer or instructional techniques course certificate
  • Successfully completed training to this standard 
  • At least 2 years relevant industrial experience
  • A verifiable CV.

Delivery

The following method(s) may be used in the delivery of this standard:

  • classroom and workshop
  • on site in a safe and supervised environment

All materials and equipment must be of a suitable quality and quantity for candidates to achieve learning outcomes and must comply with relevant legislation.

The class size and candidate/instructor ratio must allow training to be delivered in a safe manner and enable candidates to achieve the learning outcomes.

This standard is considered to contain 51 per cent or more practical training.

Assessment

For the successful completion of training, candidates must complete an end of course practical assessment or knowledge test that measures the learning outcomes and has a pass or fail criteria.

Quality assurance

Quality assurance against this standard will require initial approval of the training organisation and their content mapped to the standard. 

CITB will also conduct an approval intervention, either desk-based or centre visit, to ensure the training organisation can meet the requirements of the Training Standard. 

Approved training organisations (ATOs) will be required to present information on records of training and assessment upon request to CITB for desk-based analysis. They will also be visited annually by the CITB quality assurance team.

Renewal/refresher

There are no mandatory renewal or recommended refreshment requirements for this standard.

Approval date

November 2018

Review cycle

Either on request or in 3 years from approval date.

Learning outcomes

Learning outcomes

The candidate will be able to

Additional guidance to support learning outcome

Describe screeds including: 

  • terminology, uses, characteristics, materials, properties, and recognition

Tools and equipment

 

Samples

 

Suppliers/Manufacturer’s brochure

 

Manufacturer’s instructions

 

Video example of installation process

 

Videos of good and bad practice

 

Scenarios with photos to practice selection of: tiles, grouts, joints, and adhesives

 

SDS sheets for COSSH

 

Photos of good and bad installations

 

Print or PDF (full/extract) of relative standards, codes, and guides

Describe the design considerations for screed construction including:

  • bonded, unbonded, floating, heated, thickness, movement, and setting out

Install a screed including: 

  • surface preparation (bonded, unbonded, floating)
Describe the surface treatment and drying of screeds

Test screeds including:

  • residual moisture levels, soundness tests, departure from datum, and surface regularity tests

Install joints in screeds including:

  • movement joints (unheated, heated), and Intermediate/stress relieving joints in ceramic tiling (unheated, heated)

Prepare and repair a screed including:

  • regularity, cracks, and damage

Assess the substrate for tiling

Prime and level screeds for tiling
Select and use adhesive for tiling
Install movement joints for tiling including: in the screed, in tiling & screed, and ceramic tile & natural stone
Fix tiles
Select and use grout

Work safely including:

  • follow safe work practices
  • identify hazards
  • reduce/eliminate risks
  • use controls
  • use PPE

Examples of:

  • PPE
  • SDS sheets for COSSH
  • risk assessments
  • safe work practices/procedures

Comply with related legislation, codes of practice, and standards

 

Safety legislation (H&SAWA, COSSH, PUWER, LOLER, Work at Height), HSE guidance, manufacturer’s documents, British/EN/ISO Standards, codes of practice, association guidance, building regulations, SDS sheets, company procedures, risk assessments, safe work procedures, environmental protection, and use of PPE.

Additional information about this standard

Other organisations have relevant information for this standard

Health & Safety Executive (HSE) guides

Legislation

View relevant government legislation

  • Health and Safety at Work etc Act 1974
  • Workplace (health, safety & welfare) regulations 1992 
  • The Work at Height Regulations 2005
  • Work at Height (Amended) 2007
  • Personal Protection Equipment Regulations 2002 (PPE)
  • Personal Protection Equipment at Work Regulations 1992 (PPE)
  • Provision and Use of Work Equipment Regulations (1998 UK 1999 NI) PUWER
  • Control of Substances Hazardous to Health Regulations 2002 (COSHH)
  • Lifting Operations and Lifting Equipment Regulations 1998 (LOLER)
  • Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 1995 (RIDDOR)
  • CDM Construction Design and Management Regulations 2015 CDM
  • Construction (Health, Safety and Welfare) Regulations 1996
  • Manual Handling Operations Regulations 1992 as amended 2002
  • Control of Noise at Work Regulations 2005
  • Control of Vibration at Work Regulations 2005

Building regulations

  • Building and Buildings, England and Wales: The Building Regulations 2010.
  • The Building (Scotland) Regulations 2004
  • Statutory Rules of Northern Ireland

Approved documents (guidance for building regulations)

  • Resistance to the passage of sound: Approved Document E
  • Access to and use of buildings: Approved Document M

Building information modelling (BIM)

Work at Height Safety Association

  • The WAHSA Technical Guidance Notes are a free resource, provided and maintained by WAHSA and its members. A reference for: specifiers, managers, and end users of fall protection equipment.

BS-EN-ISO standards

Miscellaneous

  • BS EN 131- 1 to 7: Ladders. Terms, types, sizes, requirements, testing, marking, user instructions
  • BS 8000-0: 2014. Workmanship on construction sites. Introduction and general principles. Note that this standard partially replaces/supersedes BS 8000-1 to 16.
  • BS 6093: 2006+A1:2013. Design of joints and jointing in building construction. Guide.

Substrates and screeds

  • BS EN 636-3: 2003 Plywood. Specifications
  • BS 4483: 2005. Steel fabric for the reinforcement of concrete. Specification. 
  • BS 8204-1 to 7 Screeds, bases and in situ floorings: Codes of practice. Concrete, cementitious levelling, polymer, terrazzo, mastic asphalt, synthetic resin, pumpable self-smoothing screeds

Wall and floor tiling, design & installation, code of practice

  • BS 5385-1: 2018 Ceramic, natural stone and mosaic wall tiling in normal internal conditions
  • BS 5385-2: 2015 External ceramic, natural stone and mosaic wall tiling in normal conditions
  • BS 5385-3: 2014 Internal and external ceramic and mosaic floor tiling in normal conditions
  • BS 5385-4: 2015 Ceramic and mosaic tiling in specific conditions
  • BS 5385-5: 2009 Terrazzo, natural stone and agglomerated stone tile and slab flooring

Ceramic tile specifications

  • BS EN ISO 10545- 1 to 16: Specifications for ceramic tiles including: dimensions, surface quality, water absorption, porosity, relative density, bulk density, modulus of rupture and breaking strength, impact resistance by measurement of coefficient of restitution, resistance to deep abrasion for unglazed tiles, resistance to surface abrasion for glazed tiles, linear thermal expansion, resistance to thermal shock, moisture expansion, crazing resistance for glazed tiles, frost resistance, chemical resistance, resistance to stains, lead and cadmium given off by glazed tiles, colour differences.
  • BS EN 14411: 2016 Definition, class’n, characteristics, assess, verify, performance, marking 
  • BS EN 14891: 2017 Liquid applied water impermeable products for use beneath ceramic tiling bonded with adhesives. Requirements, tests, assess, verify, performance, class, and marking

Stone products

  • BS EN 12057: 2015 Natural stone products. Modular tiles. Requirements
  • BS EN 14157: 2017 Natural stone test methods. Determination of the abrasion resistance 
  • BS EN 14618: 2009 Agglomerated stone. Terminology and classification 
  • BS EN 15285: 2008. Agglomerated stone. Modular tiles for floor and stairs (internal and external). 
  • BS EN 14617- 1 to 16 Agglomerated stone. Test methods: flexural strength (bending), apparent density and water absorption, electrical resistivity, chemical resistance, thermal shock resistance, freeze and thaw resistance, dimensional stability, abrasion resistance, resistance to fixing (dowel hole), linear thermal expansion coefficient, compressive strength, dimensions, geometry, surface quality, and impact resistance

Terrazzo tiles

  • BS EN 13748- 1 & 2: 2004 Terrazzo tiles for internal use, and external use

Grouts and adhesives

  • BS ISO 14448: 2016 Low modulus adhesives for exterior tile finishing.
  • BS EN 12004- 1 & 2: 2017 Adhesives for ceramic tiles. Requirements, assessment, verification, performance, classification, marking, and testing
  • BS EN 12808- 1 to 5: Grouts for tiles. Determination of: chemical resistance of reaction resin mortars, resistance to abrasion, flexural and compressive strength, shrinkage, and water absorption
  • BS ISO 13007- 1 to 5: Ceramic tiles. Grouts and adhesives. Terms, definitions, specifications for adhesives. Test methods for adhesives. Terms, definitions and specifications for grouts. Test methods for grouts. Requirements, tests, conformity, classification and designation of liquid-applied waterproofing membranes for use beneath adhesive-bonded ceramic tiling
  • BS EN 13888: 2009 Grout for tiles. Requirements, evaluation of conformity, class and designation

Grants

Find out how to claim a grant for short duration training courses

ATO course accreditation

Find out how to accredit a training course to a standard.

Related standards

How did we do today? Give feedback