The ciob courses are the qualifications accredited by The Chartered Institute of Building (CIOB). The CIOB courses have a specialisation to teach about construction materials. These courses have several levels of qualifications, one of the most taken is CIOB level 4 diploma. Check the CIOB courses on The College of Contract Management to help you grow professionally. https://www.theccm.co.uk/courses-page/site-management-course/