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EC · EC-MS-001 · Official manual
ECChestnut intermediate floors
A manual limited to the recurring user-declared configuration of chestnut primary members, a small highly friable cementitious topping, and tiles, leading from bay-by-bay evidence to diagnosis, relevant alternatives, temporary works, and signed hold points.
Public research edition
Method and status are public; the technical file remains controlled.
These pages do not authorise work and do not replace surveys, calculations, filings, works direction, safety coordination, or professional signatures. Internal PDFs become downloadable only after publication review, restricted-data removal, and entry in the controlled manifest.
Report architecture
Four verifiable main sections.
This public record summarises the structure. The formal bilingual issue contains detailed sources, tables, registers, signatures, and controls.
Regulations, permissions, responsibilities, temporary works, and safety gates
Chestnut-system options, interfaces, materials, procurement, and cost control
Controlled sequence, hold points, inspections, as-built record, and signatures
Non-negotiable controls
The procedure stops when evidence is insufficient.
- Chestnut identity and topping friability are user descriptions, not timber grading, a verified build-up, or proof that the topping has no structural or phase function.
- Each bay, both member ends, bearings, moisture, decay, effective section, use, and loads are measured or professionally assessed before an option is released.
- The comparison is limited to retention and local repair, selective replacement or sistering, conditional timber-concrete action, and a justified red route for complete replacement.
Public control sources
Primary sources, with applicability to be checked.
The links support the research framework and must be rechecked at project date. They do not replace the appointed professional's regulatory selection.
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The LaTeX source and bilingual PDFs remain in the controlled archive. Public download requires editorial approval, privacy review, link verification, and a hash-based manifest.