Principles on Erection and Inspection of Roof Trusses
- ITC-SA Bracing Manual Volume 1
- ITC-SA Bracing Manual Volume 2
- Note Pad & Pen
- Hard Hat & Reflector Vest
NB: Please ensure that you wear safety shoes for the site visits.
All candidates will write an assessment on the last day; however candidates will be assessed continually over the course during discussions and especially during the two site visits.
The main objectives of the workshop is to provide the essential knowledge to Competent persons (as defined in the National Building Regulations) to enable them to carry out roof inspections (of prefabricated timber roof trusses) and sign them off with sufficient knowledge and insight.
A further objective is to provide the required training component towards achieving the professional designation of a Certified Roof Inspector (CRI).
CRI’s must still meet the minimum requirements of the underlying qualification and relevant work experience, in addition to this training, before being recognised as CRI’s.
CRI’s only inspect roof under the supervision and Professional Indemnity Insurance of an ITC-SA Accredited Timber Engineer who may utilise CRI’s at their sole discretion.
Roof Inspector as a Professional Designation
While all delegates who graduate from the training course will enjoy enhanced knowledge on the subject of roof inspections, not all of them will graduate as ITC-SA Certified Roof Inspectors. This designation is only obtained through compliance with a number of basic requirements including an academic component, practical or workplace experience and a competency assessment.
A Certified Roof Inspector is defined as a practicing professional who will traditionally come from the built environment, must have prior experience in roof design and construction, and should preferably have a recognized qualification (NQF level 5) in the built environment.
A Certified Roof Inspector may legally only inspect and certify a roof under the supervision and Professional Indemnity insurance of an ITC-SA Accredited Timber Engineer. Please note that Accredited Timber Engineers, as the ultimate responsible party, may choose to utilise or to not utilise any Certified Roof Inspector at their sole discretion.
A Certified Roof Inspector can be registered in this designation, but may only inspect roofs within the specified category, as per below and depending on their proven competencies:
- Category A – High Risk
Very complex roofs
- Category B – Medium Risk
Complex domestic and simple industrial and commercial roofs, including up to 10 metre spans
- Category C – Low Risk
Simple roofs up to and including 8.5 metre span with standard loadings
- Category D – Low Risk
Understanding Timber Roof Inspections
|8.30||Basic Roof Terminology, including: Rafters, tie beams, webs Gables, hips Truncated hips, true span Overhangs, cantilevers Prefabricated/bolted methods|
|10.20||Basics of timber design, including loading, and information of relevant codes. Permissible stress and limit state loading explained. Tributary loading.|
|13.30||Bracing in roofs in general: difference in lightly loaded versus heavily loaded roofs. (Experience from the field through slides and pictures)|
|15.00||Who is the ITC-SA, Role players and their different responsibilities in the timber structures roofing industry|
|16.00||End of Day 1|
|8.30||Rafter bracing: why necessary different systems of bracing, study standard bracing details|
|10.20||Tie beam and web bracing: standard bracing details (case studies of failures with pictures)|
|13.30||Handling, Transportation and Storage of Timber Structures|
|14.00||Discussion of paperwork required. Discuss who is responsible for paperwork.|
|14.45||Site visit to a timber roof under construction. (On-site guidance and discussion) – Ensure that own transport is arranged.|
|16.00||End of Day 2|
|8.30||Site visit to a different site to see a timber roof in distress and the effects of ineffective bracing – Ensure that own transport is arranged.|
|10.20||Discussion of site observations|
|11.00||Discussion of ethics in regard roof inspection|
|11.30||Questions and answers|
|12.30||Slide show of non-compliant roofs and the consequences|
|15.00||End of Workshop|