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Alloovium releases Exchange · May 2026

Version control for construction.

Track every revision, every party, and every acknowledgement — across every DOCX spec, scope, and report on the job.

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Spec 03.30 — Concrete.docx
v4
v1
v2
v3
v4
v3 → v4just now
+0·−0
Sarah Lin tightened reinforcement spacing.new
Reinforcement
−N16 @ 200 EW
+N16 @ 175 EW
Notes
+Revised to suit SEPP 65
Cover
External 60 mm · unchanged
Affects 3 dependants
ITP-03.30Concrete PourSWMS-04Reinforcement fixPMP §7.2Procurement

By certification, every project's audit trail is half-recovered email and folders named 'Final v3 actual final'. The head contractor is the one defending it in court.

Across the project

One revision. Every party.

When a head contractor issues a revision, every dependent subcontractor receives it, and every acknowledgement is recorded against the revision it applied to — not against the document, not against the project, against the revision.

Audit trail · Spec 03.30 v414:32 AEST
  1. 14:32:01Hunter Civil Co · Issued Spec 03.30 v4
  2. 14:32:02Nicolosi Plumbing LLC · Acknowledged
  3. 14:32:04Akling Electrical LLC · Acknowledged
  4. 14:32:05Mercer Structural Steel · Acknowledged
  5. 14:32:07Durand Concrete Co · Acknowledged
Spec 03.30.docx · revision v4 · 14:32:01
Tower 4 · Contract spec
Head contractor
Hunter Civil Co
rev9f8b2c1
Subcontractor
Nicolosi Plumbing LLC
Awaiting v4
Receiving v4…
Acknowledged14:32:02
Subcontractor
Akling Electrical LLC
Awaiting v4
Receiving v4…
Acknowledged14:32:04
Subcontractor
Mercer Structural Steel
Awaiting v4
Receiving v4…
Acknowledged14:32:05
Subcontractor
Durand Concrete Co
Awaiting v4
Receiving v4…
Acknowledged14:32:07

The product

Built around the revision, not the folder.

01

See exactly what changed, line by line.

Open any two DOCX revisions side by side and Exchange shows you the clause diff — concrete grade changed from 25 to 32 MPa, external cover moved to 60 mm, and the testing clause picked up AS 1012. No more emailing Word files named final-final. The reviewer sees the delta, not the folder.

Spec 03.30 · Concretev3 → v4
Next change1 / 32 / 33 / 3
v3 · current
3.30 Concrete
−a. Grade: 25 MPa @ 28 d
b. Slump: 100 mm · agg 20 mm
c. Cover (external): 50 mm
−d. Reinforcement: N16 @ 200 EW
e. Curing: 7 days min
f. Testing: AS 1012 series
v4 · proposed
3.30 Concrete
+a. Grade: 32 MPa @ 28 d
b. Slump: 100 mm · agg 20 mm
+c. Cover (external): 60 mm
+d. Reinforcement: N16 @ 175 EW
e. Curing: 7 days min
f. Testing: AS 1012 series

02

The audit trail your contracts team will ask for.

When a defect claim lands in year three, the question is always the same: who had what, when. Exchange produces a signed, timestamped record of every revision issued, every party who received it, every acknowledgement and every clause-level comment — exportable as a dossier for legal, the principal, or your indemnity insurer.

Audit dossier
Eastlink M9 · Spec 03.30.docx rev v4
Export DOCX
Exported · 06:00
Revisions
v414 May · 11:23Sarah Lin · Hunter Civil Corevised — clause 3.30.4, 3.30.8
v314 May · 09:00Mark Chen · Hunter Civil Corevised — concrete grade clause
v213 May · 14:30Sarah Lin · Hunter Civil Coexternal cover clause added
v112 May · 09:00Mark Chen · Hunter Civil Coinitial issue
Acknowledgements · v4
Mercer Structural SteelDavid Patel14 May · 11:23
Durand Concrete CoTony Durand14 May · 11:24
Akling Electrical LLCSarah Roberts14 May · 11:25
Nicolosi Plumbing LLCMike Nicolosi14 May · 11:26
Clause-level comments
6 resolved · 0 open · last comment14 May · 11:02 · Sarah Lin
SHA-2569f8e7d6c5b4a32108f7e6d5c4b3a2918e7d6c5b4a3210ff8e7d6c5b4a32
Exported by Mark Chen

03

Tell every trade what changed — by trade.

When a revision lands, Exchange writes the summary before anyone asks. The steel sub sees one line about reinforcement spacing. The concrete sub sees the new grade and cover clauses. Every summary is grounded in the DOCX diff and stamped to the write-once audit log — what was generated, when, for whom.

v4 just landedSpec 03.30 · Concrete.docx14 May · 11:23
Summaries · 3 trades
Spec 03.30 · Concrete
−Grade: 25 MPa @ 28 d
+Grade: 32 MPa @ 28 d
Slump: 100 mm · agg 20 mm
−Cover (external): 50 mm
+Cover (external): 60 mm
−Reinforcement: N16 @ 200 EW
+Reinforcement: N16 @ 175 EW
+Note: revised to suit SEPP 65
8 changes · grounded
Mercer Structural Steel· Steel

Reinforcement spacing tightened to N16 @ 175 EW and Note 4 references AS 5100/SEPP 65. No fabrication-schedule impact — bar size and grade unchanged.

Durand Concrete Co· Concrete

Mix design moves to 32 MPa @ 28 d; external cover increases to 60 mm. Curing window unchanged (AS 1012). Review pre-pour ITP for the new cover spec.

Akling Electrical LLC· Electrical

Cover increase to 60 mm changes the penetration clause. Re-check the sleeve coordination note — no change to the run otherwise.

Audit stamp
3 summaries · grounded · logged 14 May · 11:24

Across the trades

Drawing S-04 · rev v4
Foundation Plan · Tower 4
Markups · 4 trades
Conflict · N7-A
Markups
4 today
Mercer Structural Steel
Column embed · N7
14 May · 10:15
Durand Concrete Co
Slab pour band · N7→N9
14 May · 10:33
Akling Electrical LLC
Conduit penetration · N7
14 May · 10:47
Nicolosi Plumbing LLC
Drain stub · N7→N8
14 May · 11:02
Conflict flagged
Four trades touch column N7. Routed to head contractor for resolution.

Four trades. One drawing.

Every redline merges back onto the head contractor’s master. When trades touch the same spot, Exchange flags the conflict before it reaches site.

The conflict shows up on the drawing, not buried in a transmittal.

Pricing

One flat fee. Every seat, every project.

No seat math. No per-document line items. Bring the whole site — reviewers, subbies, principal — for one price.

Free

For one team running a pilot.

$0AUD / month
  • One active project
  • Up to 50 documents
  • Unlimited seats on the project
  • Audit log retained 12 months
  • Email support
Start free
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Contact us

For head contractors and portfolios.

ContactPricing on application
  • Unlimited seats, projects, and revisions
  • Side-by-side diff and dependency tracking
  • AI change summaries written by trade
  • Markup consolidation across every trade
  • Clause-level comments and resolution
  • Audit-log export (CSV, signed DOCX dossier)
  • SharePoint and Aconex connectors
  • SSO and SCIM
  • Custom retention and BYO storage
  • Dedicated environment
  • Procurement-led onboarding
  • Named success engineer
  • Priority email support
Talk to us

FAQ

Questions the contracts team asks.

Full reference in the docs. For anything that needs a conversation, email zander@alloovium.com.

Stop guessing which DOCX was final.

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