BULDX / Structural Movement

Building a Photographic Baseline for Expansion Joints

BULDX product guides6 October 20262 min read

A photographic baseline makes future joint inspections easier to compare. Take repeatable views at handover and connect them to fixed locations, so later teams can distinguish a new change from the original condition.

AI-generated product sample context: New museum gallery with a floor joint, distant wide architectural view — APPLICATION ILLUSTRATIONAI-generated application illustration. A new visual concept, not a completed BULDX project or an approved installation drawing.

Selection considerations

Choose overview and close-up positions for each joint run. Include intersections, terminations and transitions between finishes. Record the camera direction and location on the plan. Similar-looking corridors should not be documented with unlabelled photographs that cannot be assigned to one run.

Photograph the accepted visible condition and any accessible details required by the inspection plan. Include a scale where a dimensional observation matters. Do not estimate movement capacity or concealed fixing quality from the finished surface alone; retain the corresponding inspection records separately.

Store the photos with the product codes, approved drawing revision and handover date. For later inspections, use the same positions where possible and document changes in loading or nearby finishes. A baseline supports maintenance decisions, but it does not replace the agreed inspection criteria.

Before you specify or order

Select repeatable photo positions
Include junctions and terminations
Link photos to drawing revisions
Retain hidden-work inspection records separately

Relevant BULDX catalogue examples

These records illustrate the product types discussed. Compare the full specifications before selecting; listing here does not establish project suitability or make the items interchangeable.

BULDX catalogue illustration: Recessed Seismic Floor Joint · 100 mm opening · 45 mm height, code BDX-EJ-FL-RF-100-45-310-P30-N60-AL — CATALOGUE REFERENCE`BDX-EJ-FL-RF-100-45-310-P30-N60-AL` · Catalogue geometry reference; a family illustration may be shared by variants. Consult the exact selected drawing for variant dimensions and assembly requirements.

Product and code	Selected catalogue fields
`BDX-EJ-FL-RF-100-45-310-P30-N60-AL`Recessed Seismic Floor Joint · 100 mm opening · 45 mm heightSeismic Floor Joints	Joint gap 100 mm · physical opening Fb Profile height 45 mm · approximate H dimension Overall section width 310 mm · B dimension Horizontal movement +30 / −60 mm · approximate Material Aluminium
`BDX-EJ-FL-RF-100-70-352-P40-N50-TPE`Recessed Seismic Floor Joint · 100 mm opening · 70 mm heightSeismic Floor Joints	Joint gap 100 mm · physical opening Fb Profile height 70 mm · approximate H dimension Overall section width 352 mm · B dimension Horizontal movement +40 / −50 mm · approximate Material Aluminium + TPE thermoplastic elastomer
`BDX-EJ-FL-RF-150-45-360-P50-N100-AL`Recessed Seismic Floor Joint · 150 mm opening · 45 mm heightSeismic Floor Joints	Joint gap 150 mm · physical opening Fb Profile height 45 mm · approximate H dimension Overall section width 360 mm · B dimension Horizontal movement +50 / −100 mm · approximate Material Aluminium

Browse the complete Structural Movement catalogue

Common question

Can photographs replace installation inspection records?

No. Finished views may not show concealed supports, fixings or barriers, which need their own records.

References and scope

BULDX catalogue: Structural Movement

Product fields are from the BULDX catalogue. Confirm the current selected drawing, supporting performance documents and approved project detail before ordering. External references, where listed, provide background guidance and do not certify these products.