Get Technical Support
We understand the importance of providing the very best in Technical Support for our members and our team has a wide and extensive range of experience in both glass and Fenestration matters. Members needing a quick answer can contact a member of the team by dialling our Member Exclusive Hotline number which can be viewed by clicking here which will be answered by the first available Technical Officer.
For more complex or detailed queries, send your email to email@example.com Our inbox is prioritised with members’ emails answered same day/next day. No matter the issue, our aim is to provide the best support in quality and response. Please note that non-members can only enquire by email.
In an ever-changing industry landscape, it is vital that members are fully aware of changes in legislation and standards that are in development or implemented. Our team analyse and evaluate documents issued by MHCLG and the Welsh, Scottish, Northern Irish and Irish Government. This covers all ISO, CEN & BSI Standards for our industry whether for review, comment or implementation as well as information provided by associated organisations such as the CPA, CWCT and Glass for Europe.
All relevant material is collated and issued to members in our Quarterly Reports and also provided in Presentation form at all Technical and Regional Group meetings. This is also available for download from this page. In addition, this page includes details and links to any documents relevant to our members as and when they are introduced.
Access the GGF Technical Groups pages here
Glass & Glazing Groups
(Click on links below)
Safety & Security Group
Fire Resistant Glazing
Insulating Glass Manufacturers Group
Emergency Glazing Group
Window Film Group
Glazing Components Group
Mirror & Interior Glass Group
Home Improvement Groups
(Click on links below)
Window & Door Group
Systems House Group
Home Improvement Technology Group
Heritage Windows Group
Consumer Management Group
Site Visits & Consultancy
Regrettably, disputes between installer and consumer can occur and result in deadlock. The GGF can visit sites and provide inspection reports covering aspects such as product suitability, quality of installation, compliance with Building Regulations; Industry Standards and Good Practice Guides. Similar disputes involving contractors and professional bodies are also covered in this service.
Reports by the GGF are a well established and recognised form of evidence in Courts throughout the UK and Ireland and is also further enhanced with an Expert Witness Service. This is a chargeable service, however, members will receive a favourable discount.
If you wish to request a site survey then please click here
As the boundaries of building design are constantly expanded, it is our industry’s duty of care to ensure that installations are within acceptable and safe parameters. This ranges from glass floors and stair treads to structural glass systems for the building envelope. At the GGF we can provide the relevant calculations including glass requirements and loadings using MEPLA software. SJ MEPLA is a finite element program specially developed to perform static and dynamic calculations of glass structures.
You can calculate any shape of a system including laminated glass, point fixings, balustrade clips and all this for insulated glass. Any bearing and loading situations are possible. You can consider load cases or dynamically calculated impacts for the use of glass as fall protection
Datasheets, Good Practice & Guidance Documents
Long recognised as a major asset to our members, our Technical library continues to expand. Regularly reviewed and expanded, the library is divided into 3 categories: –
Datasheets: Source documents for the industry covering details on products such as IGUS, Toughened, Laminated, Curved Glass, Window Film, Windows, Doors and Hardware. Click here
Good Practice Guides: detailing installation standards and requirements e.g. Windows, Doors & Conservatories.
Guidance for Trade & Consumers: explanatory documents covering topics such as condensation, roller wave, anitroscopy & visual inspection.
All are free to download for members in PDF format. Non-members can purchase from the GGF Shop.
Conformity Marking – CE & UKCA Marks
In this period of adjustment since leaving the EU, the transfer to UKCA marking from the European CE mark has caused issues and confusion thoughout the Construction Industry which is further complicated due to a lack of clarity from the Government for many of the basic principles and operational details. The CE mark will cease to be acceptable in Great Britain from 1st of January 2022. The use of UKCA became effective from the 1st of January 2021.
The introduction of the UKCA conformity mark along with CE UKNI and the relevant test certification is a complex matter, not least when compliance with the NI Protocol is also a consideration. Members, however, can be assured of receiving accurate guidance and advice on how to minimise business disruption during this period.
The Technical team will continue to inform members of any updated information or changes in regulations.
For the latest information on Conformity Marking, click here
Input to BS, EN & ISO Standards
These regulatory bodies have long recognised the experience and knowledge available from the GGF Technical Department.
As such the Technical team represent the GGF members and the industry in general in working groups in BSI, CEN & ISO providing input for the reviewing, creating and updating of UK and International Standards. Working groups include: –
- BSI B/520: Glass in Buildings
- BSI B/538: Windows & Doors
- BSI CB/401: Retrofit Energy Efficiency Measures
- BSI B/208/1: Stairs and walkways
- BSI B/209: General Building Codes
- CEN TC/129: Glass in Buildings
- CEN TC/33: Doors, windows, shutters and building hardware
- ISO TC/160: Glass in Building
- ISO TC/162: Doors, windows and Curtain Walling
Any proposed or current review of Standards is notified to members through the Quarterly Technical Report and at Regional and Technical meetings.
Calibration & On Site Product Testing
Our Technical Officers are experienced in regular testing of glass & fenestration products and can give guidance to our members.
Through established relationships with both UK Authorised Bodies and EU Nominated Bodies, the GGF can also arrange product testing for members.
We also provide calibration for heat soak ovens and the relevant documentation.
Additional costs apply for these services.
Meet the Technical Team
Due to the wide range of products and services provided by our members, our team has an equally wide range of experience covering production, installation & technical knowledge.
We recommend looking at our Meet the Technical team for the most suitable Technical Officer to assist you in resolving or advising you on your current issue. The direct email address and mobile number for each of the team are also provided. (Members only)
Please note that some links below may only be available to members. To find out about joining the GGF click here
Technical Department Profile
The Technical team has developed and continues to revise a range of publications to support GGF Members in their businesses. These include technical Data Sheets, Good Practice Guides, Codes of Practice and other industry and consumer guides renowned throughout the glass and fenestration sector.
Federation Members can further benefit from GGF technical expertise at meetings of the GGF’s specialist technical groups and committees under the Glazing and Home Improvement Executives, where GGF Technical officers provide secretariat and specialist technical support.
When not assisting Members directly, the Technical team contributes to the shaping of policy and helps to steer the setting of National, European and International Standards to the benefit of the Membership and the industry as a whole.
The GGF Technical Consultancy additionally provides a range of services to Members and non-Members including on-site testing, inspections, calibration, product testing and expert witness services. Technical officers are also responsible for the GGF’s industry-leading range of technical publications and datasheets.
For information and dates on upcoming Events and Meetings, please click here
Latest Technical News & Events
Documents under review
- Welsh Approved Documents F, L & O – Updated
- Scottish Building Regulations Technical Handbook – Updated
The past week has seen the Welsh Government release their new versions of Approved Documents F, L & O and also the update to the Scottish Technical Handbook. There are some differences from the recently published English Approved Document F, L & O and a summary of the Welsh ADs can be downloaded here. A summary of the Scottish changes will follow shortly.
Government provide answer on AVCP3s
Not quite the eleventh hour but the Government have finally addressed the problem regarding of the use of historic data when using AVCP 3s for UKCA marking. The guidance is fairly general and we await further detail but for now we can confirm that historic test data from European Test Houses will be acceptable for UKCA marking. Whilst this is a major step forward, there are still outstanding issues with Conformity marking and discussions with Government will continue. For more information on what we know currently click this link
Another job opportunity at GGF Technical Department
We are all delighted with our colleague Ben Wallace’s recent promotion to GGF Group Head of Membership and wish him well. However, it has created an opening for a new Technical Officer. A copy of the Job Description can be found here. If you think you fit the bill, have a technical background in Fenestration and are looking for a fresh and exciting challenge then please send a copy of your CV in the first instance to firstname.lastname@example.org
November Fenestration Network Event – Save the Dates
Following the success of our last Fenestration Network Event pre-pandemic, we will be organising this again for 2022. Details are as follows:
2nd of November
- 10:30am Systems House Group
- 13:30pm HI Technical and Hardware Group
- 17:30pm Drinks Reception
- 19:30pm Network Dinner
- 10:30am Window, Door and Conservatory Group
- 13:30pm Aluminium Group
Skilled Pathways – first Cohort starts the journey
The first cohort of 8 trainees on the GGF Skilled Pathways course recently attended a 5 Day Introductory module at Total Support Training’s Milton Keynes facility. A mixture of presentations and practical work, the trainees gained valuable insight into the various glass products and their unique benefits as well as hands-on experience in glass handling, glass cutting, PPE & First Aid. To find out more about Skilled Pathways click this link
Latest Consultations and Documents of Interest to Members
Building Safety Act gains traction
With the Building Safety Bill gaining Royal Assent on 28th April 2022 and becoming the Building Safety Act, members will need to be aware of further controls on the use of Construction Products including the new UK CPR. Government have issued a timeline for full implementation of the Act. A summary of the Act will be issued soon.
New Guidance documents available in Technical Library
Following Standards Committee approval, the Technical Department are pleased to make the following documents available to members from the Library:
- Visual Guidelines for PVCu windows NEW PUBLICATION
- Visual Guidelines for Georgian & Leaded IGUs – NEW PUBLICATION
- A Guide to changes in English Building Regulations F, L & O for dwellings – NEW PUBLICATION
- Consumer Guide to Trickle Ventilators – UPDATED
- Datasheet 6.6: Light Transmittance – NEW PUBLICATION
The Roadmap to Standards Publication
- Proposal: A request is made to create a new Standard or update an existing Standard
- Draft: A working group is formed to create the Draft Document
- Public Comments: The final draft is made available for comment by interested parties
- Comment Resolution: All submitted comments are considered by the working group for possible inclusion in the document
- Approval: After the comments are reviewed, a final check by the working group to ensure it is ready to publish
- Publication: Standard is submitted for publication and made available for purchase or paid download
Update on Standards from BSI, CEN & ISO
|BSi ||PAS2035:2019 + A1:2021 – Retrofitting dwellings for improved energy efficiency – Specifications & guidance||Watching brief – still in draft|
|BSi||PAS9980 – Fire Risk Appraisal and assessment of external wall construction of existing blocks of flats||Out for Public Comment|
|BSi||Flex8670 – specifies requirements competence for individuals working in the built environment||Watching brief – still in draft|
|BSi||BS 6375-1_2015+A1_2016 – Performance of windows and doors — Classification for weathertightness and guidance on selection and specification – Confirmation (B/538/01)||Under review by Working Party|
|BSi||BS 8214_2016 – Timber-based fire door assemblies. Code of practice – Confirmation (B/538/01)||Under review by Working Party|
|BSi||PAS 24_2016 – Enhanced security performance requirements for doorsets and windows in the UK. Doorsets and windows intended to offer a level of security suitable for dwellings and other buildings exposed to comparable risk||Under review by Working Party|
|BSi||BS 4873_2016 – Aluminium alloy windows and doorsets. Specification – Confirmed as current 7/12/21||Current|
|BSi||BS 7412_2007 – Specification for windows and doorsets made from unplasticized polyvinyl chloride (PVC-U) extruded hollow profiles – Confirmation (B/538/01)||Under review by Working Party|
|BSi||BS 6375-2_2009 – Performance of windows and doors — Classification for operation and strength characteristics and guidance on selection and specification – Confirmation (B/538/01) – response by 30/04/2021- BSI has agreed to delay on this due to pandemic.||See main description|
|BSi||BS 459_1988 – Specification for matchboarded wooden door leaves for external use – Reconfirmation (B/538/01)||Under review by Working Party|
Quarterly Technical Report – Q2 2022 Version
Each Quarter the Technical Department produces the very latest information covering Building Regulations, British, European & International Standards, GGF Publications, updates from the CWCT, CPA & CLC. This is produced in the following formats
Datasheets currently under drafting
|Doc. Ref||Description||Expected Completion|
|4.1||Basic putty fronting glazing techniques for single glazing – UPDATE||Quarter 3: 2022|
|4.2||System design & glazing for IGUs – UPDATE||Quarter 3: 2022|
|4.8||Recommendations for fixing mirrors – UPDATE||Quarter 3: 2022|
|4.9||Compatibility of glazing sealants and compounds with IGUs – UPDATE||Quarter 3: 2022|
|6.7||Windows & Doors – Use & specification of hardware – NEW||Quarter 3: 2022|
|6.9||Windows & Doors – Visual Guidelines for Aluminium windows – NEW||Quarter 3: 2022|
|30.4||Visual Guide for IGUs – Consumer Guide – UPDATE||Quarter 3: 2022|