Boxed in pipes or ducting that look a bit different might mislead

Boxed in pipes or ducting that look a bit different might mislead
By Phil Murphy

Moulding like this may, after being decorated over and sealed, may be less noticeable and, deceptively, look less like a comparatively recent addition.


Still, behind it are pipes and cavities that were not part of the original structure, that pass through a compartment barrier to a full height service riser, that directly connects dozens of dwellings laterally and vertically (a particularly high risk).

The compartment wall penetrations that the moulding conceals, or the cavity within it where fire, smoke and hot gases can travel without being visible, were not part of the original design and may require closer examination to establish whether the integrity of compartment barriers has been fully reinstated.

I've discussed the 'concealed barrier penetration' issue with colleagues in the fire safety sector. They are finding that every time they inspect concealed areas, when doing Type 4 inspections in blocks of flats, they are finding inadequate fire stopping, without exception.