Linear joint seals installed to issued details

What is installed

A linear joint seal closes the gap at a compartment line where two elements meet: the head of a wall to a soffit, a wall to a floor, or a construction / movement joint that the fire strategy has already identified. We install the joint system named on the issued detail. That is usually a tested combination of mineral wool, sealant, or a proprietary linear gap product — whatever the specification has already chosen.

We do not invent a joint detail on site. If the specification is silent on a gap we can see, the query is referred to the design party. Installation of that line waits until a detail is issued. That may be a variation. We do not substitute a “similar” product because it is in the van.

Typical packages

On commercial new-build and fit-out, head-of-wall joints sit after drylining. The wall is up; the soffit is there; the specified linear system is installed to the gap width the detail allows. Floor-to-wall junctions and slab-edge joints follow the same rule. Movement joints are included only where a tested system is named and the movement range on the drawing matches that system.

Catch-up is common. Drylining and M&E do not finish a floor together. We plan labour against the programme you issue. A return visit to close joints after a late partition or a late service is quoted as an attendance, not assumed inside a lump sum. If you need evening access because the floor is still live by day, say so at enquiry.

What a quotation needs

Compartmentation drawings that show the joint lines. The fire specification or the relevant TGD B extracts. Named systems if they already exist. Approximate joint lengths help; if lengths are not scheduled we will state the assumption or a provisional rate. We price labour and certified materials. We do not price a survey of the building to find extra joints.

What is out of scope

System selection is a design duty. Approving a gap width that sits outside the tested range is a design duty. Walking the building to locate joints that are not on the drawing is a survey. None of that is in this package. We do not hold professional indemnity for design and we do not sign a design ancillary. The handover for joints is the same Irish pack as for penetrations: photographs referenced to IDs where specified, register entries, product evidence, and a construction ancillary for installation to issued details only.

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