National Insulation Association (NIA) https://www.nia-uk.org/

                         INCA – Insulated Render and Cladding Association – https://www.inca-ltd.org.uk/ 

                                               Energy Saving Trust – www.energysavingtrust.org.uk                                       

                                                 OFGEM – www.ofgem.gov.uk                                                                               

                                                    Trustmark - https://www.trustmark.org.uk/

                                       Green Deal Oversight & Registration Body – http://www.greendealorb.co.uk/

                                                   British Board of Agrément – http://www.bbacerts.co.uk/

                  Kiwa BDA- https://www.kiwa.com/gb/en/

                                       Department of Business Energy and Industrial Strategy (BEIS) 

                                         Department Of Housing Communities and Local Government (DHCLG)

                       Elmhurst Energy https://www.elmhurstenergy.co.uk/

     Welsh Government https://gov.wales/planning-policy-and-guidance-energy

          MIMA Mineral Wool Insulation Manufacturers Association http://mima.info/about-mima/

                                              UK Centre for Moisture in Buildings https://ukcmb.org/

                          Housing Executive www.nihe.gov.uk

                      Insulation Manufacturers Association https://insulationmanufacturers.org.uk/

External wall insulation specification for weathering and thermal bridge control – Guide. May 2019