Gas membranes preparing to install

The purpose this standard is to provide the delegate with the knowledge to fully understand the prestart requirements of preparing to install ground gas membranes and venting systems.


Gas membranes preparing to install  


Minimum 1 day of 6 learning hours  


The purpose this standard is to provide the delegate with the knowledge to fully understand the prestart requirements of preparing to install ground gas membranes and venting systems. 

The scope this standard covers the following: 

  • interpretation of drawings  
  • preparing to install ground gas membranes 
  • relevant legislation and official guidance  
  • procedures 
  • resource, materials and equipment  
  • services 
  • suitability of formation  
  • site protection and access 

Occupational relevance 

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

  • operative and craft 
  • supervision 
  • management and leadership 
  • designers


There are no delegates pre-requisites as part of this standard. However, a basic knowledge of health & safety, manufacturers specification terminology and practical installation techniques would be beneficial. 

Instruction/ supervision 

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

  • a train the trainer or instructional techniques course certificate  
  • at least 2 years relevant industrial experience 
  • a verifiable CV 


Delivery may be in an on or off the job environment. 

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

The class size and delegate/trainer ratio must allow training to be delivered in a safe manner and enable delegates to achieve the learning outcomes. 

The following delivery methods may be used in the delivery of this standard: 

  • classroom 
  • e-learning  
  • courses mapped to this standard can be delivered remotely as there are not any practical activities 

This standard is considered to contain 51% or more theoretical learning.  

This standard is considered to be set at a basic level.                                                     


For the successful completion of training, the trainer must be satisfied that the delegate has achieved all the learning outcomes. 

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. 


Recommended refresher every 3 years 

Approval date 

September 2020 

Review cycle 

3 year(s) from approval date or on request 

Learning outcomes

The delegates will be able to: 

Additional guidance to support learning outcome 

Interpret drawings, specifications, method statements and manufacturers' information 

company policy (H&S, environmental etc.)  Generic / site specific, risk assessment, manufacturers to include data sheets, product information, COSHH data and MSDS (Manufacturers safety data sheets) 

Interpretation of site-specific rules 

to include; 

  • communication  
  • site induction 
  • toolbox safety talks 

Report and rectify inappropriate information 


Report unsuitable resources and how procedures are implemented. 


Understand current legislation and official guidance  

in regard to installing gas membranes. British Standards, COP’s ( codes of practice ) CIRIA PCA 

Understand organisational security procedures 

during work, away from the workplace/overnight, during breaks, for materials, plant and equipment 

Identify personal protective equipment (PPE) used relating to preparing to install gas membranes.  

to include; 

  • identification of various key items used and relevant safety codes.  
  • RPE (respiratory protective equipment) 
  • LEV (local exhaust ventilation) 

Describe characteristics, quality, uses, limitations and defects associated with the resources 

to include;  

  • materials  
  • tools  
  • equipment  
  • hazardous products  
  • site conditions  
  • other resources 

Describe hazards associated with the resources and method of work.  

to include: 

  • ground gas hazard 
  • COSHH related to products and materials 
  • weather conditions 
  • other site hazards 

Calculate quantity, length, area and wastage 


Identify work programme and deadlines 

to include: 

  • types of programmes 
  • reporting variations to programme and deadlines   
  • possible consequences of not meeting programme and deadlines    

Maintain the tools and equipment used to install gas membranes.  

to include; 

  • cutting and measuring tools 
  • power tools 
  • heat and power generating appliances 

Follow procedures, report problems and establish the authority needed to rectify. 


to in relation to: 

  • RAMS 
  • sub-grade 
  • work sequence 
  • penetration locations 
  • working methods 

Related standards

  • Gas membrane - unloading, storage and preparation

  • Ground gas protection measures - getting it right.