Last reviewed 19 May 2022

The Association for Specialist Fire Protection (ASFP) has expanded its range of guidance with the release of three new and three updated documents.

Offering advice on particular issues of concern to the industry, Advisory Note 27 provides advice on the structural fire protection of steel beams with corrugated webs. These fabricated sections, which were recently introduced to the market, offer a thinner steel plate than can be used in traditional webs.

While this saves weight and cost, the ASFP notes, the fire-resisting performance of these sections is not fully understood. The advisory note warns against the use of plain section data in support of a corrugated web section without extra testing.

Advisory Note 28 covers the firestopping of metal pipes where flanges are located close to service penetration seals. It encourages earlier involvement of passive fire specialists to prevent the construction of untested service penetration arrangements, particularly in the presence of flanges within the secondary insulation zone (typically within 500mm of the wall).

The final new publication, Advisory Note 29, covers planned maintenance.

It draws upon advice from the “Regulatory Reform (Fire Safety) Order; BS 9999: Code of practice for fire safety in the design, management and use of buildings” and from “BS 8524: Active fire curtain barrier assemblies” to ensure that a competent person conducts that maintenance.

The ASFP said that changes to UK Construction Product regulations, and the introduction of the UKCA mark, prompted the revision of TGD 20, which covers the CE marking of fire-resisting and smoke control duct sections.

TGD 15, which provides advice on the installation and inspection of spray-applied passive fire protection and Advisory Note 21, covering coatback to secondary structural steel, have also been updated.

Copies of all the above are available here.